HomeMy WebLinkAbout09.Att. 3 Proposed Standard Specifications for Design and Construction, 2022 Edition 1 1 & of •
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Revisions
Users of Central San's Standard Specifications for Design and Construction, Standard
Drawings, and Approved Materials List shall be responsible to confirm they are using
the most recent versions. To confirm the most recent versions, please visit
https://www.centralsan.org/standard-specifications.
REV SECTION OR DESCRIPTION
NO. DWG NO.
1 Cover New
2 2-01 Clarified basic sewer service policy requirements
3 2-03 Revised per Code update 2010
4 2-04 Moved from Section 17
5 2-04.A Added precedence: District Code, then Specs and Plans
6 2-04.B.1 Added order of precedence for Mainline plans
7 3-01.13.2.a.i Clarified location of cap
8 General updates to incl d water (e.g.,
sewer/recycled water k)
9 3-01.B.2.a.iv Clarified that portion o (lo nly) that may be
permitted with sewer e n
10 3-01.B.2.a.vii Moved pump review item fr 7
11 3-01.0 Added title, adde tion Service Requests and
Building Permit ie w Encr hment Verification (to
match revise lic n d Applicant's Guide)
12 3-02 Expanded it io o a i ations and plans, by type.
rifie uireme start after close.
13 3-05 L e c 'ficatio ated to match District Code, to
in an 7.
14 3-06 pd to match District Code
15 4-01.F.2 hang e va iance to exception for dedicated side
er and use
16 4-02.A.3 r rement to properly handle slurry from HDD
ope
17 4-02.C.2 Reordered pipe material by preference; relocated removal of
internal bead to Tech Specs
18 4-02.D Corrected auto-number of paragraphs
19 4-05.E Expanded to include multi-family residential and mixed use
20 4-07 Updated and clarified minimum horizontal clearances for
building sewers
21 4-08.0 Clarified that portion of lateral (lower only) that may be
permitted with sewer extension
22 4-09.A Clarified requirement for direction and accessibility of
cleanouts; required at transition from pressure to gravity
23 5 General correction to internal reference of subsection 5-02a
throughout section
24 5-04.E RV/Trailer Holding Tank Dump Stations — permissible in
commercial applications only
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REV SECTION OR DESCRIPTION
NO. DWG NO.
25 5-06 Added new section for pet waste disposal
26 6-02.B Added clarification for land-rights when parcels have same
owner
27 7-03 Added California Plumbing Code reference
28 8-01 Added clarification for prohibition of ratepayer funds to install
new infrastructure,
29 8-01.B Moved from former section 10-01 to aid Engineers at start of
design
30 8-01.0 Moved from former section 12-01 to aid Engineers at start of
design
31 8-01.D Added reference to District Code §7.15.020, that public
facilities can only be installed in easements as last resort
32 8-01.E Clarified demonstration for tity to be responsible for private
system
33 8-01.G Relocated "note" to ap pri ragraph
34 8-02 Moved from former se -0 aid Engineers at start of
design
35 8-02.B Moved from former sects n 4.A.9 aid Engineers at
start of design
36 8-03.A.2 Reordered pipe eri refs .ice; relocated removal of
internal bead to ch e
37 8-03 Removed s is method of a Sewer Main
tensio
38 8-05.A d to rate D ode requirement to design for
ulti trib - area; and mitigate impact of development
do ream system
39 8-06.B dded to at impact of development on existing
wnstrea stem
40 8-06.0 d to erate existing Standard Drawing 21-02 for
co n at trunk manhole connection
41 8-07.A Added reference to District Code §7.15.020, that public
facilities can only be installed in easements as last resort,
basis for variance consideration, and minimum maintenance
and operation requirements
42 8-07.B Clarified minimum clearance from pipe by removing "and
structures"
43 8-10.A & B Reinforced requirement for access to structures
44 8.10.C.2 Clarified minimum clearance for manholes
45 8.10.C.3 Clarified configuration at trunk manhole connection per
Standard Drawing 21-02
46 8.10.C.4 Provided example
47 8.10.C.8 Removed manhole protection wall item since manholes
should be placed in location accessible to maintenance
vehicles
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REV SECTION OR DESCRIPTION
NO. DWG NO.
48 8-11 Added reference to Tech Specs for proper abandonment of
facilities
49 9-01.A Added reference to District Code §7.15.020, that public
facilities can only be installed in easements as last resort
50 9 through 12 Eliminated references to alignment review stage, preliminary
review stage, etc. Review process will be explained in
Guidance documents per consultant recommendation.
51 9-04, Updated preference for stand-alone land rights to promote
9-06.A.2 timely contribution of assets and reduce administrative
burden
52 9-07.13 Clarified Central San's infrastructure responsibility for sewers
but not roadways
53 10-01 Relocated design criteria to propriate section (8)
54 10-02 Relocated from former t' 3
55 10-03 Relocated from former ctio 05.B
56 10-04 Relocated from former 1 .B
57 10-05 Relocated from former 10- liminated former
Sections 10 & 11, move in uidan ocuments per
consultant recom on.
58 11 Created new se n, tting onstruction, to clarify
plan review pro s f itting requirements. Relocated
and reordf ecti 1-06, 11-07, 11-08, 11-09,
ji,-02, 2-03. ar into administrative and pre-
ruc ubmitt
59 11-02.A Up to ct electronic submittals only
60 11-02.0 pr cost estimate for clarity
61 11-02.D a-wor ro'e security for clarity; reordered by order of
ferenc most common type of security; clarified
.ona iew fees required for less common types
62 11-03.A.3 Re rom former section 12 to aid applicant's during
submittal process
63 12 Not Used; former section relocated to aid applicant's during
submittal process
64 17-05.D & E Former sections relocated to Section 2-04 since this is an
administrative requirement; not an inspection duty
65 33 05 33.13 Relocated item B (remove internal bead from HDPE) from
Part 2.3 design criteria to tech spec
66 19-01 New manhole cover design
67 19-02 New manhole cover design
68 19-08 New manhole cover design
69 19-09 New manhole cover design
70 19-11 New manhole cover design
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Table of Contents
PartI. General Requirements.....................................................................................1
Section 1. Introduction, Authority, and Compliance with Law........................... 1
1-01 Purpose and Scope..................................................................................... 1
1-02 Authority of Central San............................................................................... 1
1-03 Central Contra Costa Sanitary District Code (District Code)........................ 1
1-04 Enforcement................................................................................................ 1
1-05 Regulation of Private Sewage Disposal Systems........................................2
1-06 Licenses and Permits ..................................................................................2
1-07 Laws to be Observed............................... .................................................. 3
1-08 Protection of Survey Monuments..... ..... ........................................... 3
Section 2. Policies and Programs.................... ........................... 4
2-01 Basic Sewer Service Policy............... .......... ............................4
2-02 Service Area............................................. .............................................4
2-03 Payment of Fees and Charge .... ........ ......................................4
2-04 Order of Precedence for Dist t Co s, and Specifications............... 5
Section 3. Permits, Contractor's L' ses, I ran ....................................... 7
3-01 Central San P its pplica .................................................... 7
3-02 Effective Perio ppli ns, Plans, Permits .......................................... 9
3-03 Unpermitted ....... ................................................................ 10
3-04 Emergency rk......... ........................................................................ 10
3-05 Contractor's L ses .. .......................................................................... 11
3-06 Insurance............. ............................................................................... 11
3-07 Indemnification .......................................................................................... 12
3-08 Personal Liability ....................................................................................... 12
3-09 Other Required Permits............................................................................. 12
Part II. Private Sewage Disposal Systems ...............................................................15
Section 4. Design Criteria............................................................................... 15
4-01 General...................................................................................................... 15
4-02 Installation Method .................................................................................... 15
4-03 Minimum Pipe Sizes and Standards.......................................................... 17
4-04 Design Capacity ........................................................................................ 17
4-05 Point-of-Connection to Mainlines............................................................... 17
4-06 Alignment................................................................................................... 18
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4-07 Pipe Clearances ........................................................................................ 18
4-08 Material Selection ...................................................................................... 18
4-09 Structures .................................................................................................. 19
Section 5. Environmental Compliance............................................................ 21
5-01 Grease, Oil and/or Solids Removal Devices.............................................. 21
5-02 Sampling Structures .................................................................................. 25
5-03 Parking Structures..................................................................................... 26
5-04 Sewer Connections in Outdoor Areas ....................................................... 26
5-05 Swimming Pools, Spas and Fountains ...................................................... 27
5-06 Pet Waste.................................................................................................. 28
Section 6. Property Rights.............................................................................. 29
6-01 General.................................................... ............................................... 29
6-02 Acceptable Documents to Convey P ts................................... 29
Section 7. Submittal Requirements ................. ..... ......................... 30
7-01 General.............................................. ......... .......................... 30
7-02 Application................................... ......... .......................................... 30
7-03 Requirements for Demolition ecti ..................................... 30
7-04 Requirements for New Buildi Co c ........................................... 30
Part III. Public Sewer Collection Sys ...... ....... ............................................33
Section 8. Design Criter,. ........ ............ 33
8-01 General.............. ....... ..................................................................... 33
8-02 Requirements A U uter d Design (CAD) ..................................... 34
8-03 Installation N thod ...... ....................................................................... 34
8-04 Minimum Pipe . es a tandards.......................................................... 35
8-05 Design Capacity ........................................................................................ 35
8-06 Point-of-Connection to Existing System..................................................... 38
8-07 Pipe Alignment .......................................................................................... 38
8-08 Material Selection ......................................................................................41
8-09 Hillside and Creek Area.............................................................................42
8-10 Structures ..................................................................................................44
8-11 Abandonment............................................................................................46
8-12 All-Weather Access Roads........................................................................47
Section 9. Property Rights.............................................................................. 48
9-01 General......................................................................................................48
9-02 Required width of Central San Easement..................................................48
9-03 Improvements Allowed within Central San Easement ...............................48
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9-04 Documents Used to Convey Property Rights for Central San Facilities ....49
9-05 Irrevocable Offers of Dedication by Separate Instrument..........................49
9-06 Irrevocable Offers of Dedication on Subdivision Maps .............................. 51
9-07 Appurtenant Easements ............................................................................ 51
Section 10. Submittal Requirements .............................................................. 55
10-01 General...................................................................................................... 55
10-02 Application................................................................................................. 55
10-03 Supplemental Reports (if required)............................................................ 55
10-04 Additional Submittals (if applicable)........................................................... 55
10-05 Design Submittal(s) ................................................................................... 56
Section 11. Permitting for Construction .......................................................... 57
11-01 General.................................................... ............................................... 57
11-02 Administrative Submittals ................ ....... ......................................... 57
11-03 Pre-Construction Submittals............ ...... .................................... 58
11-04 Permit Issuance................................ .......... .......................... 60
Section 12. (Not Used) .............................. ......... ............................. 62
Part IV. Recycled Water Distribution Syster ....... ......... ................................63
Section 13. Design Criteria................... ...... .... ................................. 63
13-01 General......................... ....r.. ........ ................................................ 63
Section 14. Property Ri ....... ............ ........................................ 64
14-01 General............ ........ ...................................................................... 64
Section 15. Submittal R is .. ...................................................... 65
15-01 General....... ........... ....... ................................................................. 65
Section 16. Permitting Constru .......................................................... 66
16-01 General........... .... ........................................................................... 66
Part V. Construction Requireme s..........................................................................67
Section 17. Control of the Work...................................................................... 67
17-01 Authority of the Central San Inspector....................................................... 67
17-02 Inspection .................................................................................................. 67
17-03 Superintendence ....................................................................................... 68
17-04 Safety ........................................................................................................ 68
17-05 Plans.......................................................................................................... 69
17-06 Lines and Grades ...................................................................................... 70
17-07 Workers ..................................................................................................... 71
17-08 Equipment ................................................................................................. 71
17-09 Notice to Adjacent Property Owners and Residents.................................. 71
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17-10 Public Convenience................................................................................... 71
17-11 Maintenance of Access and Detours......................................................... 73
17-12 Cleanliness of Jobsite................................................................................ 73
17-13 Construction Sequencing........................................................................... 74
17-14 Temporary Storm Water Pollution Control................................................. 74
17-15 Bypassing Wastewater.............................................................................. 75
17-16 Disruption of Services................................................................................ 75
17-17 Final Inspection of the Work...................................................................... 75
17-18 Warranty of Proposed Public Facilities...................................................... 76
17-19 Acceptance of Proposed Public Facilities.................................................. 76
Section 18. Control of Material ....................................................................... 77
18-01 Contractor Furnished Materials .......... ... .. ........................................ 77
18-02 Source of Supply and Quality of Ma als. ........................................ 77
18-03 Acquisition of Materials...................... ......... .................................. 77
18-04 Storage of Materials ............................... .......... ............................ 77
18-05 Defective Materials.................. ........ ....................................... 77
18-06 Trade Names and Alternativ ....... ................................................ 77
18-07 Testing Materials .......... ... .... ....... ............................................. 78
18-08 Inspection at urce pply... .. .................................................. 78
18-09 Certificates of lian ...................................................................... 79
Part VI. Technical Specifi ........ ............................................................81
Section 03 20 00 - Co ete Rei ing........................................................ 82
Part1 - General........ ............. ....................................................................... 82
Part2 - Products ........... ............................................................................ 82
Part3 - Execution................................................................................................... 83
Section 03 30 00 - Cast-In-Place Concrete .................................................... 87
Part1 - General...................................................................................................... 87
Part2 - Products .................................................................................................... 88
Part3 - Execution................................................................................................... 90
Section 03 34 13 - Controlled Low-Strength Material (CLSM)........................ 94
Part1 - General...................................................................................................... 94
Part2 - Products .................................................................................................... 94
Part3 - Execution................................................................................................... 95
Section 03 40 00 - Precast Concrete.............................................................. 97
Part1 - General...................................................................................................... 97
Part2 - Products .................................................................................................... 97
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Part3 - Execution................................................................................................... 97
Section 03 60 00 - Grout................................................................................. 99
Part1 - General...................................................................................................... 99
Part2 - Products .................................................................................................. 100
Part3 - Execution................................................................................................. 102
Section 05 50 00 - Miscellaneous Metal Work.............................................. 104
Part1 - General.................................................................................................... 104
Part2 - Products .................................................................................................. 104
Part3 - Execution................................................................................................. 106
Section 09 90 00 - Painting and Coating ...................................................... 108
Part1 - General.................................................................................................... 108
Part2 - Products .................................................. .............................................. 109
Part3 - Execution.......................................... ... ...................................... 110
Section 22 05 29 - Hangers and Supports for n .. ....................... 114
Part1 - General............................................... .......... .... .......................... 114
Part2 — Products .................................................. .......... 114
Part 3 — Execution............................... ........ .................................... 118
Section 31 05 19 - Geosynthetics for E,- wo .................................. 119
Part1 - General.......................... .... ..... ....... ........................................... 119
Part2 — Products ....... ......... ........... ... ................................................ 119
Part3 — Execution......... ........ .................................................................... 120
Section 31 23 16 - Exca ddi d Backfill.................................... 123
Part1 - General....... ........... ..... ............................................................... 123
Part2 — Products ..... ............ ..................................................................... 124
Part 3 — Execution........ ...................................................................... 127
Section 32 12 16 - Asphalt Paving................................................................ 134
Part1 - General.................................................................................................... 134
Part2 - Products .................................................................................................. 134
Part3 - Execution................................................................................................. 135
Section 32 15 60 - All-Weather Access Roads............................................. 140
Part1 - General.................................................................................................... 140
Part2 - Products .................................................................................................. 140
Part3 - Execution................................................................................................. 140
Section 33 01 30.11 - Inspection of Sewers ................................................. 142
Part1 - General.................................................................................................... 142
Part2 - Products .................................................................................................. 142
Part3 - Execution................................................................................................. 143
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Section 33 05 13 - Manholes and Structures................................................ 148
Part1 - General.................................................................................................... 148
Part2 - Products .................................................................................................. 148
Part3 - Execution................................................................................................. 149
Section 33 05 16 - Cast-Iron Pipe (CIP) ....................................................... 155
Part1 — General................................................................................................... 155
Part2 — Products ................................................................................................. 155
Part3 — Execution................................................................................................ 156
Section 33 05 19 - Ductile Iron Pipe (DIP).................................................... 157
Part1 — General................................................................................................... 157
Part2 — Products ................................................................................................. 157
Part3 — Execution................................................ .............................................. 158
Section 33 05 24 - Steel Pipe ........................... ... ........................... 160
Part1 — General.......................................... ...... ..................................... 160
Part2 — Products ............................................ .......... .... .......................... 161
Part3 — Execution................................................. .......... ........................... 162
Section 33 05 31.11 - Polyvinyl Chloride avit e....................... 163
Part1 — General................................ ....... ... ..................................... 163
Part2 — Products ....................... ... .... ....... ......................................... 164
Part3 — Execution..... ........ ........... .... ................................................ 165
Section 33 05 31.33 - Ac itrile diene �Lyrene (ABS) Pipe............... 166
Part1 — General......... ....... ................................................................ 166
Part2 — Products .... ........... ....... ............................................................... 166
Part3 — Execution.... ............ ...................................................................... 167
Section 33 05 33.13 - Hi Polyethylene (HDPE) Pipe ................... 168
Part1 — General................................................................................................... 168
Part2 — Products ................................................................................................. 169
Part3 — Execution................................................................................................ 171
Section 33 05 39.41 - Reinforced Concrete Pipe (RCP)............................... 173
Part1 — General................................................................................................... 173
Part2 — Products ................................................................................................. 174
Part3 — Execution................................................................................................ 177
Section 33 05 41 - Vitrified Clay Pipe (VCP)................................................. 179
Part1 — General................................................................................................... 179
Part2 — Products ................................................................................................. 180
Part3 — Execution................................................................................................ 180
Section 33 31 00 - Sanitary Sewerage Piping .............................................. 182
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Part1 - General.................................................................................................... 182
Part2 - Products .................................................................................................. 183
Part3 - Execution................................................................................................. 183
Section 33 31 16 - Sanitary Sewer Gravity Service Laterals ........................ 189
Part1 - General.................................................................................................... 189
Part2 - Products .................................................................................................. 190
Part3 - Execution................................................................................................. 190
Section 33 31 26 - Multiple-User Low Pressure Sewer Systems (MULPSS) 196
Part1 - General.................................................................................................... 196
Part2 - Products .................................................................................................. 197
Part3 - Execution................................................................................................. 198
Section 33 32 26 - Individual Lot Pumping Systems .................................. 200
Part1 - General............................................. ... ...................................... 200
Part2 - Products .......................................... ................................... 201
Part3 - Execution........................................... .......... ........................ 203
Part VII. Standard Drawings............................ ......... ...................................207
Section 19. Manholes and Structures.... ...... ......... ........................ 208
19-01 Standard Main Manhole........ ....... ............................................ 208
19-02 Standard Trunk Manhol ..V,... ........ .............................................. 209
19-03 Special TrunkO' nho ............ ................................................. 210
19-04 Shallow Manho pe .................................................................. 211
19-05 Manhole Bas t R ' ements for through Pipes..................... 212
19-06 Manhole Ba Specia il.................................................................. 213
19-07 Manhole Base ture nnection .......................................................... 214
19-08 Standard Manho e & Cover.......................................................... 215
19-09 Bolt-Down Manhole Frame & Cover........................................................ 216
19-10 Manhole Adjustment to Finish Grade ...................................................... 217
19-11 Manhole Protection Wall & Top Block ..................................................... 218
19-12 Temporary: Manhole Cover..................................................................... 219
19-13 Temporary: Manhole False Bottom ......................................................... 220
19-14 Rodding Inlet ........................................................................................... 221
19-15 Rodding Inlet Frame & Cover.................................................................. 222
19-16 Temporary: Access Structure .................................................................. 223
Section 20. Earthwork and Trenching........................................................... 224
20-01 Trench Structural Detail 1 for existing paved streets & parking areas ..... 224
20-02 Trench Structural Detail 2 for unpaved areas .......................................... 225
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20-03 Standard Trunk Sewer Trench Details..................................................... 226
20-04 Shared Trench Detail for Side Sewers .................................................... 227
20-05 Trench Dams........................................................................................... 228
20-06 Joint Utility Trench Separation Detail....................................................... 229
20-07 Criteria for the Separation of Water Main and Sanitary Sewers .............. 230
20-08 All-Weather Access Road Turnarounds .................................................. 231
Section 21. Mainline Sewers ........................................................................ 232
21-01 Layout of Curved Alignment .................................................................... 232
21-02 Main Sewer Connection to Trunk Sewers................................................ 233
21-03 Pipe Anchor Detail................................................................................... 234
21-04 Junction Support...................................................................................... 235
21-05 Concrete Pier Support........................ ... .. ...................................... 236
21-06 Pipe Saddle .................................... ...... ...................................... 237
21-07 Guard Fence for Creek Crossing....... ......... ................................ 238
21-08 Debris Trap............................................. ........... ........................ 239
Section 22. Side Sewers.......................... ........ .......................... 240
22-01 Side Sewer Layout to Existin ain . ........ .................................... 240
22-02 Side Sewer Layout to Ne M ... ...... ......................................... 241
22-03 Tap and Wye onnec ' o Exis M .............................................. 242
22-04 Minimum Lay o W long ...................................................... 243
22-05 Overflow Prot vic ................................................................ 244
22-06 Clean Check rotecti evic ............................................................. 245
22-07 Cleanout Rise .......... ..................................................................... 246
22-08 Side Sewer Re ......................................................................... 247
22-09 Cleanout Modification for 8" Lateral......................................................... 248
22-10 Side Sewer Tap to RCP Trunk Sewer..................................................... 249
Section 23. Side Sewers - Commercial ........................................................ 250
23-01 RV/Trailer Holding Tank Disposal Facility................................................ 250
23-02 Grease Interceptor................................................................................... 251
23-03 Sand-Oil Interceptor ................................................................................ 252
23-04 Concrete Traffic Slabs for Grease Interceptors or Sand-Oil Interceptors 253
23-05 Precast Sampling Structures ................................................................... 254
23-06 Trash Enclosure Detail ............................................................................ 255
Section 24. MULPSS and Individual Lot Pumping System........................... 256
24-01 Individual Lot Pumping System ............................................................... 256
Table of Conents
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24-02 Multiple-User, Low-Pressure Sewer System Manhole............................. 257
24-03 Multiple-User, Low-Pressure Sewer System Flushing Inlet..................... 258
24-04 Multiple-User, Low-Pressure Sewer System Connection at Gravity Manhole
259
24-05 Multiple-User, Low-Pressure Sewer System Miscellaneous Details........ 260
PartVIII. Glossary..................................................................................................261
Section 25. Acronyms, Abbreviations and Terms......................................... 261
25-01 Acronyms and Abbreviations................................................................... 261
25-02 Terms ...................................................................................................... 263
PartIX. Index .........................................................................................................269
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Part I . General Requirements
Section 1. Introduction, Authority, and Compliance with Law
1-01 Purpose and Scope
The Standard Specifications for Design and Construction shall govern sewer design and
construction work by private individuals, public agencies, and businesses within the
boundaries of the Central Contra Costa Sanitary District (Central San). The jurisdiction
of Central San includes the entire sewerage system and its appurtenances from the
point-of-connection with each building's plumbing (defined by the side sewer beginning
2 feet outside the building wall or foundation) to the discharge terminus of the treatment
plant outfall. The District Code and all uncodified ordinances of Central San shall be
considered a part of these Specifications and all PI n r 'les, cut sheets, right-of-way
documents, and specifications shall conform to t to s and requirements herein
established.
Addenda to these Specifications may be issued ally a e available at
www.centralsan.org and at Central San's Perm' Cou
1-02 Authority of Central San
The authority of Central San to establi e c e Specifications is provided in
Division 6, Part 1, of the Health and t C of t tate of California, and the
District Code.
When reference is made to er c then the reference applies to the specific
portion cited; and should t e i t code conflict with these Specifications,
then these Specifications all pre
1-03 Central Contra Co anita trict Code District Code
The District Code provides tFTq y of the (Central San) Engineer; states that only
contractors licensed in the state of California (and Property Owners in particular cases)
may perform work on private or public sewers, requires contractor registration; and
provides for permits and licenses, fees and charges, real property and improvements,
sewers, source control (pretreatment), and recycled water.
1-04 Enforcement
Subject to due process, Central San may impose fines, disconnect sewers, pursue
other enforcement provided by District Code X1.08 Enforcement and Penalties, 5.10
Permit Enforcement Provisions and Remedies, and §5.12 Suspension or Revocation of
Sewer Work Permits and Suspension of Contractor Registrations and/or take legal
action against any person(s) who violates the provisions. Central San may take the
following actions including, but not limited to:
A. Central San may serve a person who violates this code, the terms of any Central
San permit, the requirements of these Standard Specifications, or other rule,
Part I.General Requirements 1
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order, or regulation of Central San with written notice of the violation. Upon
receipt of the notice, the person shall cease the violation and correct the defect
within the time stated in the notice.
B. When a sewer work permit is not obtained, Central San may order the person in
violation of the permit requirement to comply with the permit procedure; to desist
from further work; to remove existing work; to disconnect from the Central San
collection system any sewer line constructed, excavated, repaired, rebuilt,
altered, or reconstructed without the necessary permit; and/or to expose
completed work for inspection.
C. If the work performed or activity conducted under any sewer work permit violates
any term of that permit or does not conform to pertinent District Code sections,
rules, orders, regulations or specifications, or if the permit holder does not
arrange for required Central San inspections, then Central San may refuse to
sign off on the work and may order the permitIder and/or the current owner of
the property where the sewer which is the,&e, e work is located, or both,
to desist from further work, remove exist, or onnect from the Central
San collection system any sewer line con , e ated, repaired, rebuilt,
altered or reconstructed, expose complete for in
D. Central San may suspend or revoke wer ermit if the permit holder
fails or refuses to comply with each is f the mit, pertinent provisions
of this code, the specifications, rul and ons of Central San, the orders
of Central San staff, or pertine u reg ns of a federal or state
agency or to pay an sewer per ela fee, charge, or financial
obligation (e.g., ins on
E. Central San may als nd tractor's Central San registration preventing
the issuance of fut se ork its during the period of suspension of the
contractor's regist ion. The tion of a suspension of a Central San
registration shall n xceed t ears. Reinstatement of a contractor's
registration shall at contingent upon verification of correction of all
substandard work, the ent of any outstanding fees, penalties, costs of
corrections and other costs imposed under the District Code.
1-05 Regulation of Private Sewage Disposal Systems
The design, construction, and maintenance of private sewage disposal systems
including septic tanks and leach fields, and methods of sewage disposal other than
Central San's public sewer system are governed by the statutes, ordinances, rules, and
regulations of Contra Costa County and the State of California. See also District Code
§9.04.
1-06 Licenses and Permits
Contractors doing sewer work within Central San boundaries shall be properly licensed
in accordance with the provisions of Division 3, Chapter 9, Business and Professions
Code, of the State of California, as amended; as required in District Code §5.04.015,
and in 2-04.
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Prior to beginning any work, the Contractor shall obtain all permits and licenses, pay all
inspection charges and permit fees, and give all notices necessary for compliance with
applicable federal, state, county, district, municipal and local laws, ordinances, orders
and regulations.
A person who employs others and applies for a sewer work permit shall obtain and
maintain a trench and/or excavation permit issued by the Division of Occupational
Safety and Health, state of California (Cal OSHA). The Contractor shall submit a copy
of its current annual Cal OSHA Excavation Permit to the Central San Permit Counter.
No Central San permits will be issued to a contractor unless a current Cal OSHA
Excavation Permit is on file.
1-07 Laws to be Observed
The Contractor shall comply with federal, state, county, district, municipal and local
laws, ordinances, orders, and regulations, which in an manner affect the work and/or
those engaged or employed in the work.
1-08 Protection of Survey Monuments
A Contractor issued a Central San Permit shall pr sury on ments within their
work area. If survey monuments are disturbed or Sedwi aving first been
referenced, the Contractor shall engage a La rvereset the monuments and
file a Corner Record or Record of Survey bonuments shall be
replaced in accordance with the standard f th or county) having
jurisdiction.
Reference: State of Califo ' Bu s & Pr Code §8771 and §8725, Penal
Code §605, and Governme ode 581.
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Section 2. Policies and Programs
2-01 Basic Sewer Service Policy
Each property having a separate Assessor's Parcel Number shall have:
• a public sewer extended to it; and
• one connection to the public sewer.
Exception: Central San may allow an exception to this policy if a property:
• is the last lot on either side of the road; and
• reasonably can be served from a public sewer via a private side sewer
that serves only the excepted property; and
• installed within a recorded easement across a single intervening property
adjacent to the public sewer or within public right-of-way with explicit
permission from the local jurisdiction.
Additionally, when a parcel is subdivided (e.g., a p y buildings sharing a side
sewer to the public main shall be separated to c I .s policy and these
Standard Specifications (e.g., reservation or gran a p sanitary sewer
easement).
Public sewers are owned, operated, and m by rat San.
Private sewers shall be owned, operated, d d b the Property Owner.
2-02 Service Area
Only properties annexed th ndane tral San may receive sewer
service through Central San is s facilities and those properties that have
current "out-of-agency se em " approved by the Contra Costa Local
Agency Formation Com ion. xati harges shall comply with District Code
2-03 Payment of Fees an r
A. Fees are due at the time o application for the service or permit to be provided
and Central San may not issue the permit or provide the service until the
applicant pays the fee.
B. Annexation Charges: For large annexations or reorganizations, the annexation
charge shall be due when a petition to annex the parcel(s) is submitted to Central
San. For standard annexations, Central San shall collect annexation charges at
the time a permit to connect to the public sewer is issued. For additional
information, see District Code §6.08, Annexation Charges.
C. Capacity Fees: Payment of capacity fees shall be due and made prior to the time
of imposition of any added burden. Payment of Capacity Fees will be due and
made at the time Central San approves building plans. If an added burden occurs
without payment of capacity fees, payment shall be due at the time of Central
San's discovery of the added burden. For additional information, see District
Code X6.12, Capacity Fee Program.
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D. Sewer Service Charge: The initial payment of sewer service charges shall be
made at the time of Central San's collection of capacity fees. For additional
information, see District Code §6.24, Sewer Service Charge.
2-04 Order of Precedence for District Code, Plans, and Specifications
A. District Code
1. If there is any conflict between these Specifications, Plans, or District Code,
then District Code governs.
2. When reference is made to another code, then the reference applies to the
specific portion cited; and should the language in that code conflict with these
Specifications, then these Specifications shall prevail.
B. Coordination of Plans and Specifications
1. For Sewer Main Extension plans, the order precedence is:
a) approved variance(s)
b) tabular sewer information, not inclu ater b4les
c) profile view
d) right-of-way map
e) plan view
f) coversheet
2. These Specificati the s, and equired supplementary documents
are essential to t it o Bement, and a requirement cited in one is as
binding as tho cite IIdocument is intended to be coordinated
with the others nd to de a and provide for properly completed
improvements.
3. The requirements Specifications shall govern over citations on the
Plans unless deviation from the Specifications is specifically authorized by
Central San in writing.
C. Interpretation of Plans and Specifications
1. If the Contractor finds any discrepancy or inconsistency between information
included in the Plans, or these Specifications and any law, ordinance,
regulation, or order, it shall promptly notify Central San.
2. The Contractor shall request clarification, additional information, or direction
from Central San if it believes that the work to be done is not sufficiently clear,
detailed or explained in the Plans and/or these Specifications. Upon receipt of
such a request, Central San will render a determination as expediently as is
practical, and the determination made shall be final.
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3. In the event of a discrepancy between the graphical representation and the
words or figures written on a drawing, the words and figures shall be taken as
correct.
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Section 3. Permits, Contractor's Licenses, Insurance
3-01 Central San Permits and Applications
Within the annexed boundaries of Central San, a person shall pay the required fees and
obtain a permit from Central San before undertaking sewer work or recycled water work.
The Contractor or Property Owner shall have a valid Central San permit at the jobsite
and available for review by the Inspector during prosecution of the work. Such permits
shall fall into the following classifications:
A. Permit classifications
1. Contractor's Permit - With the exception of property owners, as described in
subsection (A)(2) below, all persons proposing to perform any construction,
excavation, repair, rebuilding, alteration, or reconstruction of any public or
private sewer, or recycled water pipe, or proposing to connect any private
system to a public sewer/recycled water fa 'lity must be a contractor
licensed in the state of California and III btain a Contractor's Permit
from Central San.
2. Property Owner's Permit - An owner of rope r wer work located
on his or her property may obtain a Pr e wner mit. All work under
a property owner's permit shall be nall ormed by the owner. A
Property Owner's Permit shall n e i d for k in a public street or for
connection of a private sewer t C n public sewer facility as such
work must be performed b Ii n co or having obtained a
Contractor's Per it.
B. Standard Permits
1. New Connectio
a) Description r Gonne of buildings to existing or proposed side
sewers.
2. Sewer Repair/Altera
a) Description: Building additions or site improvement work may require the
alteration of an existing side sewer such as:
(i) Abandonment/Capping - To abandon side sewers at the public main or
to install a temporary cap on the lateral. When a building connected to
Central San public sewer is to be demolished, an abandonment permit
shall be obtained and the side sewer serving the building shall be
temporarily disconnected and capped within 5 feet of the property or
easement boundary to ensure that debris will not enter the sewer
(reference: California Plumbing Code §722.1). This is required prior to
obtaining a demolition permit from your local building department. A
Central San Inspector will verify that the lateral is properly capped. The
lateral can be temporarily capped or permanently abandoned. If the
Applicant requests to reuse the existing lateral, the Applicant will be
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required to televise it and verify, to the satisfaction of the Central San
Inspector, that the condition of the lateral is acceptable before re-
connecting. If not, replacement will be required.
(ii) Repairs and Alterations - For work on existing side sewers, which
includes, but is not limited to: repairs, alignment modifications,
installations of new branch side sewers and/or cleanouts.
(iii) Extension - For extension of a side sewer to accommodate site
construction prior to the connection of a building/structure, a Special
Approval shall be requested, authorized, and all applicable connection
fees paid prior to issuance of a side sewer extension permit.
(iv) Tap and Lateral - For the installation of taps, tees or wyes at the main
sewer and private lateral sewers. Exception: if new building connection
will immediately follow the sewer ext nsion job, then the lateral
sewer(s) may be constructed un er Extension Permit
(v) Grease and/or Sand-Oil Interc r struction of outdoor
grease interceptor and/or sand-o rcep
(vi) Trash Enclosure - For conne ' n of h enc sure with or without a
grease trap to the sanitary ste
(vii) System Compatibility R w f - When a private sanitary
sewer pump (outsi t e ding elope) is proposed, an
applicatio is re to de s that the pump will not negatively
impact th lic r syste
3. Manhole Only (P
a) Description anhole required at the point-of-connection with side
sewer whe propo ide sewer is:
(i) to connect sewer (e.g., over 12" in diameter); or
(ii) greater than 6" in diameter; or
(iii) as determined by Central San based on the sewer and site conditions.
4. Sewer Main Extensions (Public or Private)
a) Description: required for construction of main and trunk sewers, manholes,
special structures and lateral sewer(s) installed as part of the Sewer
Extension Permit.
5. Recycled Water Main Extensions
a) Description: required to extend the recycled water distribution system
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6. Recycled Water Connections Only
a) Description: required for construction of a service lateral and meter
installation to connect to the recycled water distribution system
C. Applications that may not result in sewer-work permits
1. Service Request Applications: applications are required for the following
service requests that do not generate a permit. If additional work is necessary
after the service request is completed, the appropriate application will be
required to generate a permit.
a) Dye Test - To determine whether buildings on a particular property are
connected to the public main sewer.
b) Air Test Inspection- To determine the condition of existing side sewers.
c) Public Sewer Locating - To determine t p roximate location of Central
San sewers on a parcel.
d) Right-of-Way - Examples include r e reements, quitclaims,
right-of-entry, encroachment permit
e) Surveying - Typically an at-cos ce a add-on to other service
requests.
2. Building Permit Plan Review a n c Verification - Central San
reviews building permit pl o e ine ere is any potential conflict with
existing Central n ea nts on erty or impact to the sewer
system, which m ne sewe permit listed above.
3-02 Effective Period of s Permits
A. Applications: Appl tions wi t ac ivity, as listed below, will be deemed to be
abandoned and wi admin ively closed, unless an extension has been
authorized by Centr
Application Type Expiration Period months
Service Requests 6
Residential 6
Commercial 18
Mainline Extensions 12
The extension shall be requested in writing, prior to its expiration, with
justifiable cause demonstrated including a planned construction schedule.
Central San may extend the time for action by the Applicant for up to 2
additional 6-month periods. An application may not be extended if these
Specifications or any other pertinent codes, laws or ordinances have been
amended after the date of application.
To re-start after an application is closed, the Applicant shall submit a new
application, required submittals, and pay applicable fee(s).
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B. Plans (Sewer Main Extension): See Subsection 11-04.
C. Permits: As provided by District Code §5.04.060, Central San permits are
effective for a period of 6 months from the date it is issued, unless stated
otherwise on the permit. Central San may specify the effective period for any
other permit issued by Central San. The expiration date of a permit will be
shown on the permit. Central San permits may be renewed in writing, upon
submission of a written request and payment of any applicable fees and
charges, for up to 2 additional 6-month terms.
3-03 Unpermitted Work
Performance of sewer/recycled water work without a permit is a violation of District
Code. Central San may employ any enforcement mechanism set forth in District Code
X5.10.020 or as otherwise provided by District Code or law against those persons
responsible for the unpermitted sewer or recycled water work. The person committing
the violation may be subject to a fine or imprisonm n s t forth in District Code
§1.08.060.
Unpermitted work shall be subject to an adminis ee dition to all other
applicable fees and charges. At the sole discretio e Ins &he Contractor or
Property Owner may be required to uncover work or ction /or conduct CCTV
inspection of the work to demonstrate that i he r ' ements of these
Specifications. Where work is found to be of ianc ith the requirements of
these Specifications, the Contractor or Pr rt all correct all deficiencies, or
shall remove the nonconforming wor d e e it work that complies in all
respects with the require ts.
3-04 Emergency Work
A. When a Contractor d b of its customers for immediate response
to repair a sewer/r ycled w se ice line at any time outside of Central San
regular inspection rs (see w), the work may be done as an "emergency"
response only to th nt ired to restore sewer/recycled water service and
shall comply with the g:
1. The Contractor may proceed with emergency work only after leaving a
message stating the location and scope of the work required on Central San's
Inspection voicemail.
2. Excavations for repair work shall not be backfilled until favorable Central San
inspection is received; however, excavations shall be properly protected with
4' x 8' sheets of 1-1/8" thick plywood in non-traffic areas or with trench plates
in traffic areas, to ensure public safety whenever work is not in progress.
3. The Contractor shall apply for a Central San permit for the work at 8 a.m. on
the next Central San business day following any emergency response and
shall obtain the permit prior to requesting inspection of the work.
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3-05 Contractor's Licenses
A. All contractors doing sewer/recycled water work within the Central San service
area must be registered with Central San and shall be properly and actively
licensed with the state of California Contractors License Law and the California
Contractors State License Board rules and regulations. Contractors shall
present evidence of licensing to Central San upon registration as required by
District Code §5.12.030, including submitting the names of its authorized
representative(s), business address and telephone number(s). Delivery of
correspondence or notices to this address by hand delivery, courier service,
express carrier or U.S. Mail shall be deemed sufficient service.
B. License classifications required for sewer-work permits are listed in District
Code §5.04.15, Properly Licensed Contractors. If there is a conflict between
these Standard Specifications and District Code, then District Code will prevail.
1. Acceptable license classifications for w k lic sewer/recycled water
mains are:
a) A - General Engineering Contracto ,
b) C-34 - Pipeline; and
c) C-42 - Sanitation Systems.
2. Acceptable license classifi i f or rivate services are:
a) B – General 'Idin tracto
b) C-36 - Plumbin tra
c) C-47 - Gen Man ture ousing Contractor
The sewer/rec water which contractors with B, C-36, or C-47
licenses may pe ricted to private services from public mains to
buildings, excluding ections to the public main.
A "B"—General Building Contractor shall not only be issued a sewer work
permit related to a larger project that requires at least two unrelated building
trades or crafts other than framing or carpentry, or unless the general building
contractor holds the appropriate license classification or subcontracts with an
appropriately licensed specialty contractor to perform the work, unless he or
she also holds one of the required specialty licenses.
A "c-47"—General Manufactured Housing Contractor shall only be issued a
sewer work permit to provide sewer service on a single-family individual site
placement of a manufactured home.
3-06 Insurance
Contractors registered with Central San shall obtain and maintain workers'
compensation insurance as required by California law, and general liability insurance,
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as set forth in District Code §5.08. Neither this section, nor District Code §5.08, nor any
predecessor section is or was intended to create or impose any responsibility upon
Central San to ensure that the Contractor obtains and maintains this insurance, such
responsibility being solely that of the Contractor. Central San may, however, investigate
a contractor's insurance coverage at any time. Failure of a contractor to obtain and
maintain required insurance may cause the denial, suspension and/or revocation of
permits, at the sole discretion of Central San.
3-07 Indemnification
The Contractor shall defend, protect, indemnify, and hold Central San, and all of Central
San's officers, directors, employees, and agents free and harmless from and against
claim, loss and/or liability, including attorneys' fees arising from or based on the violation
of any such law, ordinance, regulation, or order, whether by the Contractor or its
employees, subcontractors, or agents.
The Contractor shall be solely responsible for provi i n' terrupted sewer service to
all connected properties affected by its work. Th n r shall defend, protect,
indemnify, and hold Central San, its officers, dir r and employees free and
harmless against any loss, claim, or liability, inclu ttorn ' fe s, arising from, or
based on failure to provide such continuous servi
3-08 Personal Liability
No Central San director, officer, employe r a II be personally responsible for
any liability arising under or by virtue th e ma f the work. (Reference:
California Government Code, Title 1 vision 6, P 2, Chapter 1, Article 2, §815)
3-09 Other Required Per
A. Cal OSHA Excavati t: A on who employs others and applies for a
sewer work permi all o an aintain a trench and/or excavation permit
issued by the Divi n of Oc tional Safety and Health, state of California.
The Cal OSHA Ex tion P it shall be on file with Central San prior to
applying for a permit depth of excavation will be 5 feet or greater or
where soil conditions in t e field may pose a hazard of cave-in for shallower
excavations.
B. Encroachment Permits: Whenever performing sewer work within a public street
or right-of-way, the Contractor shall obtain an encroachment permit from the local
public works jurisdiction (County, City or Town), and have a copy of the permit
available at the jobsite for review by the Inspector at all times while performing
work.
C. When the use of explosives is necessary for the performance of the sewer work,
the Contractor shall ensure that it has the proper Cal/OSHA license to handle
and use explosives for such work. The Contractor shall ensure that all explosives
shall be stored in accordance with the provisions of Division XI of the Health and
Safety Code. The Contractor shall take utmost care to avoid danger or damage
to life and property. The Contractor shall obtain a permit for blasting from the
local Fire Marshal. Central San may inspect blasting licenses and/or permits at
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any time. The Contractor shall notify Cal/OSHA and Central San Inspection
regarding the time and place of the Contractor's use of explosives.
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Part 11 . Private Sewage Disposal
Systems
Section 4. Design Criteria
4-01 General
A. Joint use of a Side Sewer to serve more than one property shall not be permitted.
For additional information, see Subsection 2-01.
B. All Side Sewers shall be equipped with an approved Overflow Protection Device.
C. The construction of a new building normally requires a connection to the Central
San sewer system. Central San has developed procedures to approve the
connection, collect applicable fees, and inspec a onstruction of any sewer
facilities.
D. Central San staff reviews building plans f on tion project for possible
encroachments into existing public easem con existing Central
San facilities. If encroachments exist, plans sh revis o meet Central
San requirements. Central San staff dete a the availability of public
sewers in the area to serve any pr sed ng, ell as the plumbing for a
proposed connection.
E. Side sewers shall be conne t y gr to mainline. If there is not a
feasible gravity se a tive, th idual Lot Pumping Systems will be
allowed. If a sewage ing em is proposed, the Contractor shall comply
with the requireme tion 2 26 - Individual Lot Pumping Systems.
F. Independent Syst s
1. The drainage s of e h new building and of new work installed in an
existing building s parate and independent from that of any other
building, and, where available, every building shall have an independent
connection with a public or private sewer. (Reference: California Plumbing
Code, §311.)
2. An exception may be requested to construct a dedicated side sewer from the
rear building underneath the front building if it is not feasible to construct that
side sewer through an adjoining court, yard, or driveway.
3. Side sewers from rear buildings shall be connected downstream of the front
building's clean out and each building shall be equipped with an Overflow
Protection Device.
4-02 Installation Method
Unless otherwise approved on the Permit, pipes shall be installed by the open-cut
method in compliance with Section 33 31 16 - Sanitary Sewer Gravity Service Laterals.
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Alternate methods of installation may be proposed during the application process
subject to the following:
A. Horizontal Directional Drilling (HDD)
1. The minimum design slope for pipelines proposed for installation by horizontal
directional drilling (HDD) be 3% (S = 0.0300).
2. Pipe material shall be restrained-joint Ductile Iron Pipe, restrained-joint or
thermo-fusion welded PVC Pipe as specified, or thermo-fusion welded High
Density Polyethylene Pipe as specified in Part V Technical Specifications.
3. Mud/slurry from drilling operation shall be properly captured and disposed of;
storm drain systems, creeks and waterways shall be protected.
B. Boring and Jacking
1. The minimum interior diameter of metal ca s shall be 8" greater than the
maximum outside diameter of the sew ip el to be installed, not
including bells.
2. Casings shall be welded steel pipe no I an th m diameter and
thickness shown on the Plans and shall co with ton 33 05 24 - Steel
Pipe.
3. The annular space between th rrie nd t e casing shall be filled with
grout or silica sand.
C. Pipe Bursting
1. Side sewers will b ept for pipe bursting if the following is met during
the pre-installati ins 'on:
a) Existing pil aterial trified clay or a similar material that can be
fractured b e burst'
b) No sags (stan r); sags shall be repaired prior to pipe bursting
2. Pipe material shall be thermo-fusion welded HDPE pipe (minimum SDR-17),
or restrained-joint or thermo-fusion welded PVC pipe as specified in Part V
Technical Specifications.
D. Cured-In-Place Pipe (CIPP)
1. Side sewers will be acceptable for CIPP repair if the following is met during
the pre-installation CCTV inspection:
a) Pipe shall be free of debris and root intrusion, and thoroughly cleaned
b) No sags (standing water); sags shall be repaired prior to installation
c) No joint offset > 1/4 inch
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2. The Contractor shall obtain a CCCSD Special Discharge Permit if it proposes
to discharge CIPP process water to the public sewer system. Process water
shall not be discharged to storm drains, gutters watercourses, swales,
impoundments or onto the ground.
4-03 Minimum Pipe Sizes and Standards
A. Size and Slope
1. Minimum and maximum sizes and slopes are shown in Table 1 below:
Table 1. Minimum and Maximum Allowable Slope for Side Sewers
Description Gravity Pressurized**
Nominal Pipe Slope (%) Nominal Pipe
Size (in) Size (in)
min min max
Residential, Homes (up to 4.0 RUE 4 2.0* 150
Trash Enclosures, Drinking Fountains,
Eyewash Stations, Bathrooms
All Other Uses 6 1.1 **
2. The size of the side sewer shall not be er th e size of the building
waste plumbing at its connection to the wer.
3. *Applicant may request a Varian0%,"," side er cannot meet the
minimum slope required for a 4" e b n m he minimum of a 6" pipe.
4. **Applicant shall demonstr c p ' ce Subsection 4-01 Item E to
Central San's satisfactio ore pr eedi . Applicant shall submit hydraulic
calculations to min a of lat a demonstrating the discharge
flow meets Subse 4- the poen -of-connection with the public sewer
system.
4-04 Design Capacity
A. Discharge Flow - ischar om any side sewer at its point-of-connection to
the main sewer shal d 100 gpm.
B. Fixture Units - The fixture unit equivalents for plumbing fixtures shall be based on
the tables of the Uniform Plumbing Code, latest edition.
4-05 Point-of-Connection to Mainlines
A. The crown of the side sewer shall match the crown of the public main sewer it
connects to.
B. Side Sewers shall connect to public sewers at manholes or by installation of
approved taps, wyes or sanitary tees.
C. Side Sewer connections to public sewers over 12" in diameter shall be made at
manholes unless Special Approval is authorized for installation of a tap.
D. Side sewers equal in size to the main sewer shall be connected at a manhole,
unless a Variance is authorized.
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E. Multi-Family Residential, Mixed Use, or Commercial Side Sewer connections to
an 8" main sewer may require a manhole if required by Central San at the time of
Application.
F. Side sewer connections shall be made with fittings or adapters recommended by
the manufacturer for use with the particular pipe and as listed on the Approved
Materials List.
G. Side sewer or lateral connections to new or existing manholes shall conform to
DWG 19-01 through 19-07. If connecting to a main sewer along a horizontal
curve, the lateral shall be radial/perpendicular.
H. Connection and side sewer details shall conform to DWG 22-01 through 22-10.
4-06 Alignment
A. Lateral sewers shall have an alignment that provides an angle of intersection with
the downstream section of main sewer of n le 90°. The maximum
allowable deflection at any point in a side er be 90°. Consecutive bends
shall be separated by a straight pipe seg t feet in length.
4-07 Pipe Clearances
A. Side sewer pipes and structures shall sign d constructed with a
minimum wall-to-wall clearance of1 e and orizontal from other
utilities and improvements, unless rea ance is required by the utility or
local jurisdiction, as shown in 0-
B. Side sewers shalla um ho learance of 2 feet from any
building or structure as hes a eps, whether covered or uncovered;
breezeways; roofed ch oofed patios; carports; covered walks;
covered driveways s r str res or appurtenances).
C. It is recommende ut not re d, that side sewers have adequate clearance
from trees and C3 wat provements.
4-08 Material Selection
A. Side sewers installed by open-cut shall be PVC SDR-26, unless site conditions
do not meet cover or other requirements, then alternative materials shall be used
in compliance with Table 2, subject to approval by the Central San Inspector.
Side sewers installed by pipe bursting shall be HDPE.
B. During installation, if any portion of a Job does not meet the minimum cover or
clearance requirements shown on the Plans, then Special Approval by the
Inspector is required before proceeding with the work.
C. Lateral sewers installed concurrently with a Sewer Extension Permit shall be of
the same material and class as the main sewer.
D. At the point-of-connection to the building waste plumbing, minimum cover for
side sewers shall be 18".
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E. The following minimum and maximum allowable pipe cover shall be achieved in
design and construction of sanitary sewers:
Table 2.Side Sewer Pipe Cover Limitations
Size Material Type and Minimum Class Min-Max Cover in ft
Building Sewers
4"-6" DI Class 52 1 30
Cl Soil Pie 1.5
VC - 2.5
ABS Schedule 40 24
PVC SDR-26
Schedule 40
HDPE SDR-17
Lateral Sewers
4"-6" DI Class 52 1 30
Cl Soil Pie 1.5
PVC C900 DR 14 3 24
C900 DR 18
SDR-26 AW
C900 DR 25
Schedule 40
HDPE SDR-
ABS Schedule 40 julk
4" VC - 30
6" 20
4-09 Structures
A. Cleanouts
1. Shall be installed it o to allow cleaning in the direction of flow
(Reference: pe id lu g Code §719.4)
2. Shall be access e at all t (Reference: California Plumbing Code §719.3
and §719.5)
3. Shall conform to D -07 and be provided in the side sewer at the
following locations:
a) point-of-connection to the building drain, within 2 feet of building
foundation
b) any single bend greater than 45°
c) aggregate horizontal change in direction exceeds 90°
d) intervals not to exceed 100 feet (Reference: California Plumbing Code
719.1
e) at the transition between pressurized and gravity flow on a side sewer
B. Overflow Protection Devices
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1. Requirement: All Property Owners shall install and maintain an OPD on any
side sewer that is connected, or is intended for connection to, the Central San
sewer system (see also District Code §9.15).
2. Location: Where reasonably possible, OPDs shall not be in areas with
vehicular and foot traffic, nor be obstructed (e.g. nothing on, over, adjacent to
the OPD that would restrict observation of, or access for cleaning up, an
overflow). If an OPD will be located in an area which will have concrete or
asphalt paving, such as a driveway or sidewalk, the device shall be installed
in a Central San-approved reinforced concrete utility box fitted with a metal
lid. Where the sewage cannot overflow on the area surrounding an overflow
protection device without damage to property, a Central San-approved check
valve shall be installed.
3. Elevation Requirements: OPDs shall be installed at an elevation that protects
the property from damage. The Property O er is responsible to either (1)
confirm that the backwater overflow pr vice is at the proper
elevation; or (2) to obtain competent sta m a licensed plumber or
contractor to confirm its proper elevati y equent modification of
the property results in the OPD being a prop ion, the Property
Owner or Contractor shall adjust the OP t prop evation.
4. For additional specifications, se c 33 Sanitary Sewer Gravity
Service Laterals.
C. Other Structures
1. Other structures, h a treatm ices or sampling structures, may
be required. For a nal irements, see Section 5 Environmental
Compliance.
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Section 5. Environmental Compliance
5-01 Grease, Oil and/or Solids Removal Devices
Central San may require any non-domestic user to install a grease, oil and/or solids
removal device according to guidelines set forth below and District Code §10 in order to
prevent grease, sand, flammable liquids, and other substances which are likely to
restrict the flow or create a hazard from entering the sanitary sewer system.
A. Food Service Facilities
Any commercial establishment with common food preparation facilities shall have
a grease interceptoffB- and/or grease trap(s) installed, as specified by Central
San. The size of all grease interceptors and/or grease traps will be determined by
Central San on a case by case basis using objective criteria, that may include,
but is not limited to the size and type of facility, volume of business or operation,
plumbing fixtures, and cooking fixtures, draina fixture units and estimated flow
rate (reference: Uniform Plumbing Code, I ). Standards for grease
traps and grease interceptors for food se e f s are presented below.
1. Grease Interceptors (Gravity Grease Inter c s pe )
a) The term "grease interceptor" shall mea refab ed or precast
grease interceptor with a mini acit 1,000 gallons conforming to
current American National S dar titut NSI) standards for
Prefabricated Gravity Grea nt p NSI Z1001-2016), and DWG
23-02 with a maximum t of o th of the inlet pipe. All piping
and connect' s sh non-c e.g., no steel, cast iron, etc.).
b) All grease inte ors be installed in accordance with Section 03 40
00 - Precast an manufacturer's specifications.
c) All non-do tic drai is including, but not limited to, floor drains, floor
sinks, sinks, p sink drains serving dishwashers, wash areas, trash
enclosures a compactors, shall be plumbed to the grease
interceptor. A Va e may be requested for non-domestic drain inlets
outside the kitchen that will not produce grease.
d) All domestic waste inlets shall be plumbed separately from non-domestic
waste inlets and connected either to the building side sewer downstream
of the grease interceptor or directly to the main sewer.
e) Systems to add enzymes, microbes, or other materials intended to remove
grease from a grease interceptor are prohibited.
f) The grease interceptor shall be installed in a location that is readily
accessible for periodic cleaning, inspection, and/or sampling. Typical
installations of grease interceptors are outside of the building. Proposals
for installations within the interior of the building will be considered on a
case-by-case basis subject to the approval of the Contra Costa County
Health Services Department.
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g) If the grease interceptor is located in an area subject to vehicle traffic, the
grease interceptor shall be designed with a minimum of an H-20 traffic
rating with a monolithic pour for the concrete cap. Alternatively, an
appropriately designed traffic cover shall be installed over the grease
interceptor in accordance with DWG 23-04.
h) A sampling structure shall be installed per Subsection 5-02.
i) Grease interceptors shall be filled with clean water after installation.
2. Grease Traps (Hydromechanical Grease Interceptors (HGI) per UPC)
a) The term "grease trap" shall mean a rust/corrosion resistant grease
removal device conforming to current American Society of Mechanical
Engineers (ASME) standards for Hydromechanical Grease Interceptors
(Al 12.14.3) or Grease Removal Devices (Al 12.14.4).
b) Grease traps shall be installed in ac r ith the manufacturer's
specifications with a minimum flow ing gpm and a minimum
grease containment capacity of 40
c) The grease trap shall be connected ific p fixtures or drains
as required by Central San.
d) The grease trap shall not be ne o:
(i) Dishwashers shall n u d t ease trap. A Variance may
be considered wh n exi gin Ilation of a dishwasher is
connect a d ted gr P.
(ii) Garbage di Is/g rs shall not be plumbed to a grease trap and
are proh' co rcial establishment with common food
prepara n in whi e ki chen plumbing is not served by a grease
intercep
(iii) Domestic I not be plumbed to a grease trap.
e) The inlet pipe to the grease trap shall be equipped with a flow control
fitting. The flow control fitting shall be designed so that the flow through
the fitting does not exceed the designed input rate of the grease trap. The
flow control fitting shall be installed to be readily accessible for inspection,
cleaning and maintenance. A flow control fitting that has adjustable or
removable parts is prohibited.
f) Systems to add enzymes, microbes, or other materials intended to remove
grease from a grease trap are prohibited.
g) The grease trap shall be installed in a location that is readily accessible for
periodic cleaning according to manufacturer's recommendation,
inspection, and/or sampling.
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h) When the grease trap is installed in-ground, the grease trap lid shall be
flush with the floor; risers provided by the manufacturer shall be used
when needed.
3. Automated Grease Traps (Grease Removal Devices (GRD) per UPC)
a) The term "automated grease trap" shall mean a device that is designed to
remove grease from wastewater using mechanisms that do not rely on
gravity to achieve the separation. The requirements specified above for
grease traps shall apply to automated grease traps.
b) The installation of an automated grease trap requires a Variance to be
authorized by Central San's Environmental Compliance Section.
B. Other Commercial Businesses
Any commercial establishment that has the pot ntial to discharge waste and/or
wastewater which may contain oil, grease, ibited solids (e.g., vehicle
service, heavy or light industrial, car was , en washings, etc.) shall have a
sand-oil interceptor and/or separator(s) in a cified by Central San.
Standards for sand-oil interceptors and se p rs ar s ted below.
1. Sand-Oil Interceptors:
a) The term "sand-oil intercept hal n a abricated or precast
grease, oil, and/or solids re val i th a minimum capacity of 320
gallons as shown on D -0 nd 2 . All piping and connections
shall be non- rrosi .g., no el t iron, etc.).
b) The sand-oil in pto II be designed in accordance with the following
performance- an
(i) The int ptor sh ave the capacity for a 30-minute retention time,
based o e maxi influent flow rate.
(ii) The interce be designed to reduce turbulence of the flow
through the unit.
c) The interceptor shall provide for the removal of floatables and settleables
from the wastewater to the maximum extent practicable using multiple
sedimentation chambers, pipe elbows installed between chambers, and/or
other pretreatment design elements.
d) Alternative designs of sand-oil interceptors may be submitted to Central
San for consideration. The specifications, operation, and effectiveness for
the proposed application of the alternative design shall be certified by a
licensed Professional Engineer prior to approval by Central San.
e) All plumbing fixtures which may discharge wastewater containing oil,
grease, and/or solids to the sanitary sewer system including, but not
limited to, floor drains, service sinks, mop sinks, and drains serving wash
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areas and/or trash enclosures shall be connected to the sand-oil
interceptor.
f) All domestic waste inlets shall be plumbed separately from non-domestic
waste inlets and connected either to the building side sewer downstream
of the sand-oil interceptor or directly to the main sewer.
g) Systems to add enzymes, microbes, or other materials intended to remove
grease or oil from a sand-oil interceptor are prohibited without a Variance
authorized by Central San's Environmental Compliance Section.
h) The sand-oil interceptor shall be installed in a location that is readily
accessible for periodic cleaning by a vacuum truck, inspection, and/or
sampling.
i) If the sand-oil interceptor is located in an area subject to vehicular traffic,
the sand-oil interceptor shall be designe with a minimum of an H-20
traffic rating. Alternatively, an appr igned traffic cover shall be
installed over the sand-oil intercep in nce with DWG 23-04.
j) A sampling structure shall be install r Sub o -02.
2. Separators
a) The term "separator" shall a r orro resistant grease, oil,
and/or solids separation de a um flow rating of 20 gpm.
b) The design, secifica i , oper on, effectiveness of the separator
for the prop ap on sha ified by a licensed Professional
Engineer prior pro y Centra an.
c) The separa con d to specific plumbing fixtures or drains as
required by entraI S
d) Domestic w shall a plumbed to a separator.
e) The inlet pipe to eparator shall be equipped with a flow control fitting.
The flow control fitting shall be designed so that the flow through the fitting
does not exceed the designed input rate of the separator. The flow control
fitting shall be installed to be readily accessible for inspection, cleaning
and maintenance. A flow control fitting that has adjustable or removable
parts is prohibited.
f) Systems to add enzymes, microbes, or other materials intended to remove
grease or oil from a separator are prohibited.
g) The separator shall be installed in a location that is readily accessible for
periodic cleaning according to manufacturer's recommendation,
inspection, and/or sampling.
h) A sampling structure may be required per Subsection 5-02.
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3. Hair/Fiber/Lint Traps
Barbershops, beauty salons, pet groomers, animal care facilities, and any
other commercial facility that discharges wastewater containing significant
amounts of hair/fiber/lint shall install a "hair trap" or other pretreatment device
as specified by Central San.
4. Clay/Ceramic/Granite/Marble/Solids Traps
Classrooms, manufacturing, or any other commercial facilities that discharge
wastewater containing significant amounts of clay, ceramic, granite, marble,
solids, or other similar material residuals shall install a trap or other
pretreatment device as specified by Central San.
5. Dental Practices
a) Amalgam Separators - Dental practices JLat generate amalgam wastes
shall install an amalgam separator o t um system(s) serving the
facility, prior to discharge to the sa ry s . The amalgam separator
shall meet the ISO 11143 standar e ctive at the time of
installation. Separator shall be sized rding facturer's
recommendation to serve the numb o rator d chairs. A
sampling structure may be re ' er S ction a).
b) Plaster Traps - Dental pract' s th arg astewater containing
plaster residuals shall i al pl r t
6. Other Pretreatm t Dev'
a) Other pretreat de will be considered on a case-by-case basis to
treat specific S.
5-02 Sampling Structur
A. Sampling structure all be ' Iled immediately downstream of grease
interceptors, sand-oi rs, separators, and other pretreatment devices as
specified in this Section and in accordance with DWG 23-05, except if the
interceptor only services the area drains of a parking garage or a trash
enclosure.
B. Sampling structures may also be required by Central San on a case-by-case
basis for the following additional applications:
1. Process waste lines and/or immediately downstream of any pretreatment
units (e.g., silver recovery system, pH adjustment system).
2. Sanitary sewer laterals serving a shell building constructed in an area zoned
for light or heavy industrial use.
3. A business operation classified by Central San as a Permitted Industrial User
(see District Code §10). Contact Central San's Environmental Compliance
Section for specific requirements.
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5-03 Parking Structures
Standards for the connection of parking structures to the sanitary sewer system are as
follows:
A. Drainage from uncovered areas that are exposed to rainwater and/or storm water
run-off shall be directed into the storm drainage system. This includes, but is not
limited to, trench drains placed at the entrance and/or exit of parking structures.
B. All interior floor drains and/or catch basins which are plumbed to the sanitary
sewer shall be connected to an appropriately designed and sized (excluding
flows from fire suppression system) sand-oil interceptor as specified by Central
San.
C. Sand-oil interceptors for parking structures shall be filled with clean water after
installation.
5-04 Sewer Connections in Outdoor Areas
A. General Requirements
To avoid dedicating wastewater collection eatNooTWIluted
a city to handling of
clean water, District Code §10 prohibits the i rwater,
including, but not limited to rainwater2or
m r run-off to sanitary sewers.
Standards for the connection of out to th nitary sewer are as
follows:
1. The outdoor area shall be ed, d, /or sloped to prevent the
introduction of w nd roouipped with a cover to prevent
rainwater from e g th nitaryr system. Roof leaders shall not
discharge to the se
2. Central San m consi al native positive storm water control method
in lieu of a fixe of or co ran outdoor area on a case-by-case basis.
The business s rovid entral San with detailed design drawings,
equipment specifi nd operation descriptions, including standard
operation and maintenance procedures, for the proposed alternative positive
storm water control method. In all cases, Central San has the authority to
either approve or disapprove a proposed alternative positive storm water
control method.
3. The installation of a positive storm water control method other than a fixed
roof/cover or a complete wastewater recycling system may subject the
business operation to the monitoring and reporting requirements of an
Industrial User Permit, including the payment of permit fees and additional
oversight by Central San.
B. Surface area drains for stormwater shall not discharge to the sanitary sewer.
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C. Wash Areas —Shall comply with Subsection A above and additionally:
1. Outdoor wash areas shall be adequately sized to capture the wastewater
generated by the washing operations performed in that area.
2. All sanitary sewer drains in the outdoor wash area shall discharge to an
appropriately designed and sized pretreatment device as specified by Central
San.
D. Trash Enclosures — Shall comply with Subsection A above and additionally:
1. If a sanitary sewer drain is required in an outdoor trash enclosure located on
property zoned and/or used for food service facilities, then it shall discharge
to a grease interceptor or grease trap as specified by Central San and as
shown on DWG 23-06.
2. If a sanitary sewer drain is required in an o door trash enclosure located on
property zoned for light/heavy industrial Ie service, or used by any
facility that may generate wastes cont ng ease, flammable liquids, or
other restricted materials, then it shall n appropriately designed
and sized grease, oil, and/or solids rem evic ified by Central
San.
E. RV/Trailer Holding Tank Dump Stati
1. These types of connections ar r b commercial applications only.
2. The installation of a cent ed RV ailer Iding tank dump station at a
commercial Ioc ma ject th ss to the assessment of additional
Central San Sew e rvic arges and to the monitoring and reporting
requirements of tria Permit, including the payment of fees and
additional over t by ral
3. The RV/Trailer ding tan mp station drain shall be installed per DWG
23-01 and be ca at imes unless being used for the disposal of
RV/Trailer holding ste. No other types of waste shall be discharged to
the drain.
F. Outside Utility Equipment Areas
1. All discharges of polluted water from outside utility equipment areas (roof
ventilation systems, boiler blowdown, etc.) shall be discharged to a raised
floor sink or similarly raised floor drain to prohibit the discharge of unpolluted
water (rainwater, storm water run-off) to the sanitary sewer.
2. The discharge of condensate from exterior air conditioning units to the
sanitary sewer is prohibited.
5-05 Swimming Pools, Spas and Fountains
A swimming pool or spa connected to the public sewer shall be equipped with a 2"
maximum diameter discharge pipe.
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The draining of water from swimming pools, spas and/or fountains to the sanitary sewer
shall only be conducted under a Special Discharge Permit issued by Central San. The
discharge shall be controlled with a valve and/or the use of an approved temporary
connection.
A. The drain valve for connections to the sanitary sewer shall always be kept in the
closed position unless a permit is obtained to discharge the water.
B. A flow restrictor or valve shall be installed on the discharge piping of the system
to maintain the approved flow rate.
C. Passive overflow drains shall not be connected to the sanitary sewer system.
D. Outdoor Pool Deck Drains shall not be connected to the sanitary sewer system.
E. Filter Backwash - All filter backwash media shall be prevented from entering the
sanitary sewer system.
1. Diatomaceous Earth (DE) Filters - WId
a m the backwash of DE
filters shall pass through a solids sep n system approved by
Central San prior to discharge to the se stem.
2. Sand Filters - Wastewater from the bf san rs shall pass
through a sump or similar device b tral San to capture any
sand prior to the discharge to th anewer tem.
F. Outdoor Shower Areas
1. Any outdoor sh r aSsha
a dr sanitary sewer shall be bermed,
raised and/or slo tt the i uction of storm water.
2. The outdoor sh roofed or equipped with a cover to prevent
rainwater from terinni sewer system.
5-06 Pet Waste
A. These types of conne a permissible in commercial applications only.
B. Cat waste is prohibited from disposal into the sanitary sewer.
C. Dog waste is permitted as follows:
1. Liquid waste collection area shall:
a) include a p-trap; and
b) comply with Section 5-04A, if proposed in an outdoor area.
2. Solid waste disposal device shall:
a) include a cover, similar to the Drain Hole Cover Detail shown in DWG 23-
01; and
b) be protected from incidental debris entering the sanitary sewer (e.g.
landscape materials, rocks, plastics, etc.).
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Section 6. Property Rights
6-01 General
When a permit application is submitted for a private sewage disposal system on
property that is not owned by the Applicant, the Applicant shall provide documentation
demonstrating their right to install/ operate/ maintain/ access the proposed property.
Nothing in these Specifications shall be construed as allowing the Applicant/Contractor
to install/ operate/ maintain/ access property not owned by the Applicant without
agreement by the underlying property owner.
6-02 Acceptable Documents to Convey Property Rights
A. The following recorded documents are generally acceptable for establishing the
required property rights:
1. Grant of Private Sanitary Sewer Easement the property
2. Existing private access and/or utility e e purtenant to a property that
specifically cites uses of "sewers" and " '
3. Deed Reservation reserving sewer and ity ea on or across a
property
B. Where a grant of easement cannot ec d du both parcels being owned
by the same Owner, then Central m it a recorded Notice of Intent to
preserve an interest in real prPn7dg,
rure hese private sanitary sewer
easements shall be stablisted eneither of the Owners' parcels
is sold to someone r th e
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Section 7. Submittal Requirements
7-01 General
Any sanitary sewer work done outside of the building walls requires a Central San
permit and will be inspected by Central San. Permits will only be issued by Central
San's Permit Counter.
Issuance of the permit is required prior to starting any of sewer work, including
trenching/excavating for the sewer line. Any side sewer work performed without a valid
Central San permit will be subject to removal, reconstruction, and additional fees.
Generally, detailed plans are not needed, however, a completed application with a
sketch of the proposed work is required. All side sewer repair work done outside of the
building will be inspected by Central San inspectors. A permit shall be pulled by the
person doing the work either the property owner or a properly licensed contractor at
least 1 business day prior to starting any of the sewer ork, including trenching.
The work may be performed by the property ow r roperly licensed contractor
who is registered with Central San. The propert n my repair the house
sewer portion of the side sewer if the repair work not r e igging deeper than 5
feet at any point.
Any work within a Central San easement or ht- y shall be performed by a
properly licensed contractor.
7-02 Application
Obtain an application frojQ
ww.c Isan.o in or by emailing
permits ,centrlsan.orq.
7-03 Requirements for an onnectionIf the roof is removed frostruct r th remodel makes the building uninhabitable,
Central San requires the sewer capped prior to demolition (reference:
California Plumbing Cod1
Before issuing a reconnection permit, in compliance with Subsection 7-04 below,
Central San requires a CCTV inspection to verify the condition of the existing side
sewer. The Central San Inspector will determine if the existing side sewer may be re-
used or if replacement or repair is required prior to reconnection of the buildings.
7-04 Requirements for New Building Connections
A. A Building Connection Permit will not be issued until:
1. the main sewer is completed and accepted by Central San;
2. the building rough plumbing system, including the installation of permanent
vents through the roof, has been inspected and signed off by the local
building code enforcement agency; and
3. applicable connection fees and charges shall be paid prior to the issuance of
a Building Connection Permit.
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B. New Residential Connection Requirement: A 4" residential building connection
may be issued prior to roof completion and rough plumbing if the Applicant
requests and complies with the following requirements:
1. The Applicant shall pay all applicable Central San fees and secure Central
San and City/County permit(s) required for the connection of the building(s).
2. The Contractor shall be responsible for the placement of plugs in all
manholes downstream of the building connection(s). Plugs may not be
removed without approval of the Central San Inspector.
3. All rough sewer piping within each building pad shall be capped to prevent
debris and rainwater from entering the sanitary sewer system. The sewer
caps may be removed only to complete the rough plumbing through the roof.
4. The entire sanitary sewer system for this main sewer extension, including
laterals stubs to the property line, shall be bALI and flushed prior to Central
San acceptance of the new main sewe CCTV inspection and/or air
test may also be required by Central in n at the Applicant's
expense.
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Part Ill . Public Sewer Collection
Systems
Section 8. Design Criteria
8-01 General
A. Central San is prohibited from using existing ratepayer funds to install
infrastructure to serve new customers (reference: Health and Safety Code §5471
and §6520.5). A property owner, such as a developer, seeking to install new
public sewer facilities to serve his or her property must fund, design, construct
and provide appropriate land-rights for the proposed public sewer facilities in
compliance with District Code and Standard Specifications.
B. In accordance with the Business and Profe i e, Professional Engineers
Act, §6735, all civil engineering Plans, sp ica and reports submitted to
Central San shall be prepared by a Iicens en er or by a subordinate
under his or her direction, and shall be sig him indicate his or her
responsibility for them. In addition to the sig a all fin it engineering
Plans, specifications, and reports sh the s of the registrant, and the
expiration date of the certificate or ori
C. The Job Engineer or Surveyor a t' ffe roperty owners when they
plan to conduct surveys on e pro y a , if possible, obtain permission to
enter onto the prop . Ho r, it is der State Law that licensed
Surveyors may enter pri prope y pursuant to Section 8774 Business &
Professions Code, ize Section 846.5 of the Civil Code.
D. Where Central Sa acilities ins t Iled in roadways or all-weather access
roads, Central Sa not res 'ble for maintaining the improvement.
E. Private Main Sewer sign and plan review shall be the same as for
proposed public main sewer extensions. Additionally, Applicant shall state the
entity that will be responsible for the ownership and maintenance of the private
system and demonstrate that entity is capable of that responsibility before
Central San will approve a private system. Proposed private main sewer systems
shall be connected to the public sewer system at a standard manhole.
F. For additional requirements, see Part V Technical Specifications.
G. Exceptions:
1. Variance Request: Where it is not feasible to meet a requirement, the
Applicant may request a variance by demonstrating why the requirement
cannot be met and explaining what mitigations were taken. Requests shall be
made during the Plan Review Process and approval is at Central San's sole
discretion. Approved Variances shall be noted on the Plans at each location.
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2. Special Approval: During installation, if any portion of a Job does not meet the
minimum cover or clearance requirements shown on the Plans, then Special
Approval by the Inspector is required before proceeding with the work. Note:
Special pipe, bedding, and/or backfill may be directed by Central San.
8-02 Requirements for Computer Aided Design (CAD)
A. Prior to permit issuance, the Final Plans shall be submitted and approved in
AutoCAD file (i.e. .dwg) which shall be tied to the California State Plane
Coordinate System, Zone 3, NAD 83.
B. NAVD88 is the official Central San vertical datum. Where the NGVD29 datum is
used for design, Central San will accept benchmark elevations transformed to
NAVD88 elevations by use of a web-based program such as "Vertcon."
C. The following information shall be provided on different layers and shall not be
combined with other data:
Table 3. CAD Layers
Layer Description Preferred Layer it Line Color Plot
Name )kIlLeigLht Color
Existing sanitary C-PLAN-SSWR- M green Black
sewer pipes E
New sanitary sewer C-PLAN-SS - tinuo
pipes N
Existing sanitary C-PL as 0.4
sewer structures ST
New sanitary sew C-P SSW tinuous
structures C_
Existing right of- T- Dashed 0.16 cyan
way lines
New right-of-way C-ES Dashed 0.28
lines
8-03 Installation Method
Unless otherwise indicated on the Plans, pipes shall be installed by the open-cut
method in compliance with Section 33 31 00 - Sanitary Sewerage Piping. Alternate
methods of installation may be proposed by the Job Engineer during the Plan Review
process subject to the following:
A. Horizontal Directional Drilling (HDD)
1. The minimum design slope for pipelines proposed for installation by horizontal
directional drilling (HDD) be 3% (S = 0.0300).
2. Pipe material shall be thermo-fusion welded HDPE, restrained-joint Ductile
Iron Pipe, restrained joint or thermo-fusion welded PVC Pipe as specified in
Part V Technical Specifications.
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3. Mud/slurry from drilling operation shall be properly captured and disposed of;
storm drain systems, creeks and waterways shall be protected.
8-04 Minimum Pipe Sizes and Standards
A. Size - The minimum nominal size of a proposed public gravity sewer shall be 8"
in diameter; the size of a new public pressurized sewer shall be submitted for
approval by Central San.
B. Pipe Selection - Pipe cover and trench configuration requirements for allowable
pipe materials are specified in DWG 20-01 through 20-06. The Job Engineer
shall select pipe material and the strength or thickness class for each reach to be
installed under the Job, subject to Central San review. Pipe to be installed
between successive structures shall be of the same size, material, strength or
thickness class and manufacturer unless otherwise approved by Central San.
C. Minimum Acceptable Slope - The minimum all able slope and corresponding
minimum/maximum design flows is shown
Table 4. Minimum allowable slopes
Nominal Pipe Minimum Design M De Minimum Slope
Size (in) Flow(cfs) cfs (ft/s)
8 0.0 0.0077
10 0.82 1.2841&, 0.0057
12 1.29 .57 7V0.0022
15 1.58 0.0015
18 2. 0.0012
21 3 .81 0.00095
24 .28 0.0008
27 7.95 0.0007
30 7.9 9.81 0.0006
33 .82 11.87 0.00055
36 8 14.13 0.0005
8-05 Design Capacity
A. General
1. All sewage facilities proposed to be connected to the Central San system
shall be designed and constructed in a manner consistent with service to the
ultimate tributary service area in compliance with District Code §9.08.020.
Central San shall review plans to verify the service requirements for the
ultimate tributary service area.
2. If a proposed connection shall exceed the available downstream system's
capacity, the Applicant will be required to upsize the downstream system to
provide sufficient capacity, per Section 4-04.
B. Capacity Study
When the estimated average base wastewater flow for the job exceeds 45,000
gpd (gallons per day), or additional flow carrying capacity may be required for
existing or future connections upstream of the job, the Job Engineer shall provide
a capacity study report when Plans are submitted for preliminary review. The
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capacity study report shall include a table that presents the: proposed pipe
diameter, slope, length, Manning's roughness coefficient, full pipe capacity,
design capacity and the percentage of design capacity utilized for each proposed
sewer reach. The percentage of design capacity utilized shall be calculated by
dividing the design flow by the design capacity and multiplying by one hundred
(100).
C. Design Flow
1. Equations:
Design Flow = (ABWF * PF) + (GWI * Acres)
% Design Capacity Utilized = Design Flow / Design Capacity * 100
2. Definitions:
a) Peaking Factor (PF) - The peaking factor for the above equation shall be
obtained from Figure 1, which was den from the maximum peak flows
observed (based on 15-minute flow uring a two-week dry
period in late January and early F ar
b) Average Base Wastewater - see uni facto Tib/e 5 below
Table 5. Average Base Wastewater Unit Flow Factor
Land Use Category U Unit Flow Factor
( pd/Unit
Residential, Single Famil tial Unit 195
Residential, Multiple Famjb& W AW Re ial Unit 105
Commercial, Industrial, Ins i nal 1,0 square feet 100
Government, Sc Ch etc.
c) Groundwate ( - The GWI rate for use in the above
"Design FI equati all e 170 gpd/acre unless Central San provides
the Job En er with ea-specific rate. This rate is an average for
summertime foil ng wet weather seasons with higher-than-average
rainfall in sewe ructed in Central San after 1985.
D. Design Criteria for Gravity Sewers
1. Design Capacity - Main and trunk sewers shall be designed per Figure 1 with
the design capacity based on pipes flowing for:
a) main sewer is 2/3 full (d/D50.67); and
b) trunk sewer is full without surcharging (d/D51.0).
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-------------- ---------------------- - - -- --- --------------------
4.5------
-- -- -- -- -- -- -- -- -- --- -- -- --- -- -- --- -
4.0 ___J________1___J____L___J____L___J________L___J____l___1________L___J____L___J________.
i i i i i i i i
L
U-
i
SC
2.
M
2.0 ----- -- -- ------- -- -- -- -- -- -- -- -
I .5 ,
1 .0
0 4 6 8 1 16 18 20 22 24 26 28 30 32 34 36 38 40
ABWF (mgd)
bF
Figure 1. Peak Flow Curve
2. Velocity and Slope: The minimum acceptable slope for sewer pipe is based
upon a velocity when flowing full for:
a) main sewer is 3 ft/s; and
b) trunk sewer is 2 ft/s.
The minimum and maximum design flows for each pipe size at the minimum
acceptable slope is provided in Subsection 8-04. However, Central San may
allow a lesser slope and/or a larger pipe size on a case-by-case basis where
the elevation of the existing system constrains the available elevation drop.
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3. Pipe Diameter: Diameter of gravity sewers shall be determined by Manning's
pipe friction formula, using a roughness coefficient, "n," of 0.013 or the pipe
manufacturer's recommendation, whichever is greater.
4. Pipe Cover and Clearance: Shall comply with Subsections 8 and 8-08.
8-06 Point-of-Connection to Existing System
A. The point-of-connection (POC) of new sewers to the existing sewer system shall
be made at existing manholes or by constructing a new manhole.
B. If existing facilities shall be impacted by construction of new sewers, then those
facilities shall be replaced and brought up to current Central San standards. The
extent of the impact shall be determined by Central San.
C. If POC is at a trunk sewer, then refer to DWG 21-02 for configuration of pipe
inverts.
8-07 Pipe Alignment
A. General Requirements
1. Locate sewers in paved roadways (priv ublic
a) Unpaved easements shall be wh reasonable alternate
solution exists.
b) Unless there are physic Ii ti ' s sewers facilities shall be
installed within roadwa , per D ict e 7.15.020.
c) If this is not le, pplica request a Variance during the Plan
Review process Ilo sewer to be located within an easement.
2. Locate the cen ine o se .n the center of the roadway
a) If this is not sible, th xt order of preference is the center of lane,
then at least fr ace of curb; both are subject to approval by the
Central San En during the Plan Review process.
b) Where easements are approved, locate pipe in centerline of easement
and there shall be careful consideration of how the sewer will be
maintained and/or replaced, if necessary, including all-weather access
roads to structures.
3. Facilities shall not be located:
(i) in creek beds
(ii) in bottom of swales
(iii) near encroachments (as defined by District Code) including, but not
limited to:
• below pervious pavement / concrete / pavers
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• within C3 stormwater improvements
(iv) unrepaired slide areas will not be allowed. However, if the only feasible
gravity route is through a slide area, a Geotechnical Engineer shall a
complete study and propose a slide repair acceptable to Central San.
(v) See Subsection 8-08 for additional alignment requirements within
hillside or creek areas.
B. Clearance Requirements
1. Public Water Utilities
Sewers shall be designed and constructed to provide wall-to-wall pipeline
separation (not including bells) in conformance with DWG 20-07. Sewers
shall not be designed in the "Special Permission" zone unless specific written
approval of the water utility is provided duri the Alignment Review Stage.
2. Other Utilities
a) Other utilities shall not be installed o nitary sewers or with
crossings at angles less than 30° to nterli sewer.
b) Sewer pipes shall be designed ons t d with a minimum 3 feet
wall-to-wall horizontal clears r I utile except public potable
water utilities as noted abov
c) Sewer pipes shall be d n d co r cted with a minimum 12" wall-
to-wall verti Tear from a , except public potable water
utilities as no bov
d) If sewers sh Ile Ilel with other utilities, then the Job
Engineer s desig ve al alignment of the sewer so that future
side or Ziliti
i wer co ions can be installed without conflict with
parallel r abr changes in the alignment of the main or side
sewers.
3. Structures and Other Improvements
a) Sewer pipes shall be designed and constructed with a minimum 5-feet
clearance (subsurface, surface, and aerial) from all improvements that
could reasonably impede the operation, maintenance, and reconstruction
of sewers, including but are not limited to: building and retaining wall
footings, walls, building overhangs, solar canopies, etc.
C. Curves — Vertical and Horizontal
Directional changes to the pipe alignment cannot use angle points and may be
accomplished by using horizontal and vertical curves that comply with the
following requirements:
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1. Curves are not permitted if:
a) there is a combination of horizontal and vertical curve between sewer
structures
b) reverse and nonsymmetrical through sewer structures
c) sum of the deflections of curves between consecutive structures exceeds
45°
2. Forced bending of the pipe is permitted if the radius of the curvature is greater
than the minimum allowable radius as specified the pipe manufacturer's
published literature and the pipe material is not ductile iron pipe.
3. Additional requirements for horizontal curves:
a) Provide the mathematically correct curve data [Ratio of radius (R),
deflection/delta angle (D), and arc lengt A
b) If the radius is less than the minim all radius as specified the
pipe manufacturer's published liter xc r DIP, the use of straight
pipe segments may be permitted if owin . ns are met:
(i) The use of minimum length 'fled i applicable section of these
Specifications for the pip ein d, joined with fittings,
couplings or bell and spi joi Iled s detailed on DWG 21-01.
(ii) Straight pipe Iengt t v in le , except beginning and end of
pipe seg t
(iii) The beginn nd ipe segments shall be pipe length divided by
2 for eve f pi
(iv) The join eflectio ween any two successive pipe segments shall
not exce he ma m deflection as specified the manufacturer's
published r the fitting or coupling (see Approved Materials
List).
(v) The maximum deflection between successive straight segments of
pipe shall not exceed 11-1/40.
2. Additional requirements for vertical curves:
a) Provide mathematically correct curve data (slopes, length, and invert
elevation)
b) Slopes in and out of vertical curve shall not be less than minimum slopes
as specified in Table 3. Minimum allowable slopes.
D. Sewer Pipe Plugs: Plugs shall be designed and installed in all manholes from
which future sewer line extensions are anticipated.
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E. Sewer Line Extensions: The sewer extension shall terminate with the proper
structure, which will minimize the amount of pavement to be disturbed by future
sewer extensions.
F. Railroad and Special Utility Crossings: Where sewers are to be constructed
across or within utility or railroad rights of way requiring tunnels, bores, and/or
special pipe, the tunnel, bore or special pipe shall extend the full length of the
sewer line within the right-of-way. The minimum interior diameter of metal
casings, when required, shall be 8" greater than the maximum outside diameter
of the pipe barrel (excepting bells).
G. Suspended Pipes and Independent Exposed Sewers: The Job Engineer shall
address the following for pipes suspended from bridges or crossings:
1. Vertical design for dead and live loads
2. Lateral loads
3. Seismic loads in any direction at 1g
8-08 Material Selection
A. Material shall be selected in compliance wi \tplicant
els, However, if the pipe
cover does not meet the limitations of 7shall propose an
alternative material listed in Table 7 ap the Alignment Review
stage.
Table 6. Preferred Material for Main and A ew
If diameter is... An all b ailed... Then use...
<12" with e e ing 20°o ductile iron pipe
under wa i e slope less than 20% PVC SDR-26
no dwa with pipe slope less than 20% PVC C900 DR 14
12-15" WE, pipe s exce ng 20% ductile iron pipe
W pipe lo011lllllllIllllllllIis than 20% PVC SDR-26
>15" PVC C905
B. No sewer work shall be roadways that are scheduled for major
improvement until it has been graded to within 6" to the bottom of the subbase.
If a sewer is proposed to be installed in... Then the pipe cover shall be measured
from the...
existing roadway that is not expected to receive existing road surface to the top of pipe
major grade/surface changes
new roadways lower surface of the road structural section
areas expected to become roadway (bottom of the subbase)to the top of pipe
existing roadways that are intended to receive
major grade/surface changes
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C. The following minimum and maximum allowable pipe cover shall be achieved:
Table 7. Main and Trunk Sewer Pi a Cover Limitations
Size Material Type and Minimum Class Min- Max Cover in ft
Main Sewers under Roadway
8" VC - 6 30
10" 15
8"-10" DI Class 52 1 35
PVC SDR-26 5 24
C 900 DR 25
C900DR18 4
C900DR14 3
HDPE SDR-17 5
Main Sewer not under Roadway
8"-10" DI= Class 52 1 30
PVC C900 DR 14 3 24
Small Trunk Sewers
12" VC - 6 18
15" 25
12-16" DI Class 52 1 30
12"-15" PVC SDR-26 6 24
14"-24" C905 DR 51
C905 DR 41
C905 D
C90
C9 R 2
D
8-09 Hillside and Creek
A. Provide a geotechnical ort w, sewers are proposed to be installed:
1. in easement lo( tions wi. .a the axisting or proposed cross-slope grade
exceeds 25%
2. within 25 feet of ti, -i creek bank or 50 feet of the centerline (flowline)
of a creek
3. in historical slide locations or within the area of influence of a potentially
unstable hillside
4. determined by Central San to be necessary due to site conditions
B. The geotechnical evaluation and report shall address the following:
1. Geological setting, general soils, and bedrock conditions along the proposed
sewer alignment, and recommended setbacks from slides and creeks.
2. Slope instability or other geotechnical hazards in the vicinity of the proposed
sewer alignment.
3. Potential groundwater issues.
4. The effect of trenching and sewer installation on slope stability.
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5. Recommended requirements for trenching, bedding, backfill, or special
supports that may be recommended.
6. Erosion potential of soils around sewer near water courses.
7. Recommended corrective work if geotechnical hazards are identified.
C. If it is not feasible to locate gravity sewers on the downslope side of homes while
maintaining a safe distance from drainage ways, an alternative utilizing sewage
pumping shall be considered.
D. Sewer crossings at creeks or swales shall be as nearly perpendicular to the
centerline (flowline) of the drainage way as feasible, and in no case at an angle
less than 45° to the centerline (flowline) of the creek or swale.
1. A Geotechnical Engineer shall evaluate the need for bank and bottom
protection. If protection is recommended, th n the protection shall be included
on the Plans.
2. The Job Engineer shall design suppo u with protection.
3. For spans greater than 18 feet, steel pi equir PrIjection 33 05 24 -
Steel Pipe.
4. The following design standards ed b Job Engineer when
designing sewers in hillside an r cr S.
a) Sewers to be installed ' s m s a ivate streets which are located
in hillside an r cre eas sh trained joint ductile iron pipe
when the soil ich sewer a installed is fine grained, such as
clay.
b) Pipe materi ther DI ay be used for sewers to be installed in
easements d privat ets which are located in hillside and/or creek
areas when oil in ch the sewer will be located is coarse grained
(including udrock).
c) Pipe material other than ductile iron may be used for sewers to be
installed in public streets which are in hillside and/or creek areas.
d) If groundwater is present in the trench area, sewers shall be ductile iron
(no bedding) regardless of the type of soil.
e) Subdrains may be installed to convey underground water from its source
to a storm drain or channel. These subdrains shall be maintained
perpetually by a permanent entity other than Central San.
f) For sewers proposed parallel to existing swales or creeks, the sewer shall
be located at least 50 feet from the centerline (flowline) of the creek or
swale, and at least 25 feet from the top of the bank if the bank is defined,
to minimize the potential slope failure in the vicinity of the sewer resulting
from undercutting at the toe. A Geotechnical Engineer shall review the
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proposed alignment and furnish recommendations regarding long-term
erosion and slope stability potential.
g) Manholes to be installed at creek crossings shall be located at least 50
feet from the centerline of the creek, and at least 25 feet from the top of
the creek bank if the creek bank is defined.
8-10 Structures
A. All manholes within easements shall be accessible by conventional maintenance
vehicles traveling over paved roads or driveways unless specifically approved.
Thus, manholes within private property are discouraged and subject to approval
during Plan Review.
B. If access to existing facilities shall be impacted by the proposed site development
plans, then access to those facilities shall be brought up to current Central San
standards. The extent of the impact shall be de rmined by Central San.
C. Manholes
1. Location requirements:
a) intervals not greater than 500 feet
b) intervals not less than 50 fee racti
c) changes in sewer pipe size
d) sewer intersections
e) sewer grade s
f) last upstrea o a dry sewer pipe)
2. Access opera and m nance requirements
a) within paved way an all-weather access road outside of parking
stalls
b) outside of valley gutters or low spots that may accumulate water
c) at center of street, traveled lanes, road intersections
d) minimum 12" wall-to-wall clearance to other utilities or improvements (e.g.,
footings, foundations, etc.)
e) within one surface type (e.g., not at the transition between different
surfaces such as concrete and asphalt)
3. Drop Across Structures - Where the horizontal deflection angle between an
incoming sewer and outgoing sewer at a structure will be more than 30°, the
vertical drop across the structure from the inlet to outlet shall be 0.25 feet. A
Variance may be requested for a maximum drop of 1' during the Alignment
Review Stage. Drops exceeding 1' are not allowed. Drop manholes, where
the sewer invert is higher than the top of the shelf, are not allowed. Exception:
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Where the point-of-connection will be made to a trunk sewer, the drop from
the proposed main into the existing system shall comply with DWG 21-02.
4. Deflection at Structures —At the manhole, the horizontal angle of deflection
between incoming and outgoing main sewers shall be less than or equal to
90° (e.g., sewers should flow in the same general direction, no adverse
flows).
5. Connections to Existing Structures - Connections of proposed sewers at
existing manholes shall conform to the requirements shown in DWG 19-01
through DWG 19-07. If the proposed sewer will connect to an existing
manhole, then core-drilling at the existing base is required per Section 33 31
16 - Sanitary Sewer Gravity Service Laterals Item 3.413.
6. Cul-de-sac Requirements - A special cul-de-sac manhole conforming to DWG
19-06 shall be located at the end of any main sewer terminating within a cul-
de-sac or court.
7. Deep Manholes: If the manhole will b ea 20' but less than 30'
deep, then a trunk manhole per DWG s re d regardless of the pipe
size.
8. Stationing and Elevations - For ca n pu es, the stationing of a
manhole and the "thru" elevatio a ole s be considered as being
located in the center of the ma le.
9. Bases — Precast manhole es ar equi on installation of new
manholes, exc ver ng se therwise approved during Plan
Review.
D. Rodding Inlets
Rodding inlets are ically n roved because they are considered temporary
terminal structures limit i ction access to the sanitary sewer system.
E. Structures for Multiple- ow-Pressure Sewer Systems (MULPSS)
1. Manholes - MULPSS manholes conforming to DWG 24-02 shall be installed
at each private pressure lateral service connection, point of intersection of
branch main sewers and at any other location indicated on the Plans or
required by Central San.
2. Flushing Inlets - Flushing Inlets conforming to DWG 24-03 shall be installed at
intervals not to exceed 1,000 feet, at the terminus of each MULPSS main
sewer, and at any other location indicated on the Plans or required by Central
San.
F. Test-Fittings
All test-fittings, unless otherwise approved, shall be wye or tee branches of the
same size, material and strength, pressure and/or thickness class as the line in
which they are being installed.
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G. Bolt-Down Manhole Frames and Covers
Where drainage conditions may cause storm waters to inundate sewer
structures, or other locations required by Central San, bolt-down (watertight)
manhole frames and covers conforming to DWG 19-09 shall be installed.
H. Check Dams
For trenches located in swales to limit erosion of soil over the pipeline, Check
Dams shall be installed at intervals not exceeding 20 feet, or at the locations and
intervals otherwise indicated on the Plans or as directed by Central San.
I. Trench Dams
Trench Dams conforming to DWG 20-05 shall be installed at the locations and at
the intervals indicated on the Plans, or as directed by Central San, to prevent the
migration of groundwater through the pipe zon .
J. Pipe Anchors
For trenches where the slope of the sewe ds , Pipe Anchors in
conformance with DWG 21-04 shall be ins at int t exceeding 40
feet, or at the locations and intervals othe ise rated a Plans or as
directed by Central San.
K. Special Structures
Approval is required duringSdevi for oveground wastewater
facilities and other tsures s:
• manholes prosewers 45" in diameter or larger
• manholes gr
• metering m• siphons
• sewage pums s
• vehicle/equipracks
• trailer/RV dump stations
8-11 Abandonment
All existing main sewers or structures that are to be abandoned shall be indicated on
the Plans. In general, abandoned lines that are in service will be replaced with a parallel
line of equal or larger size, and the Applicant's Engineer shall indicate on the plans how
active sewer facilities on or adjacent to the construction area are to be protected. The
Applicant's Engineer shall demonstrate in any case that the abandonment does not
adversely affect the sewer systems. Once inactivated, the abandoned main sewer shall
be filled with controlled low strength material, in compliance with Section 03 34 13 -
Controlled Low-Strength Material (CLSM).
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8-12 All-Weather Access Roads
A. All-weather access roads shall be provided for permanent maintenance access
to all sewer structures (i.e., manholes and structures) and shall be designed and
constructed per Section 32 15 60 -All-Weather Access Roads.
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Section 9. Property Rights
9-01 General
A. Per District Code §7.15.020, proposed Central San facilities will be located in and
on lands owned by Central San, in public lands to which Central San has largely
unrestricted access or in public streets, roads, highways, or other public rights-of-
way in which, by law, Central San is entitled to construct, install, operate, and
maintain its facilities; facilities may only be installed in easements where the
aforementioned would be impracticable, technically less suitable, difficult to
maintain or would be unduly burdensome on Central San. Central San will
consider easements if the proposed sewer is located within a paved (private)
roadway; however, Applicants shall avoid locating proposed sewers within
unpaved easements.
B. District Code §7 defines and establishes the property rights needed for Central
San facilities. When public facilities (sewer or rcl d water) are proposed, the
Owner shall obtain, on behalf of Central S th erty rights sufficient to
enable Central San to construct, reconstr r ter, operate, maintain,
inspect, repair and replace its facilities as a ne without excessive cost
or other undue difficulty in accordance wit quire f this Section.
C. Property rights for existing facilities w' view r compliance with current
requirements and any deficiencies re upg s as part of the Job.
D. Nothing in these Specification a st s allowing the Contractor to
make any arrangements with pers or e ty to permit occupancy or use of
any land, structure, uil ithin t zone for any purpose whatsoever,
either with or without en n, in con ict with any agreement between
Central San and an for Owner, or tenant of such land, structure, or
building.
9-02 Required width of tral Sa ement
The required width of the C Easement is determined by the pipe diameter and
depth to the pipe, as shown int a table below.
Table 8. Required Easement Width
Pipe Diameter Depth Easement Width
(in) Or (feet, surface to invert) (feet)
5510 :59 15
>_12 >9 20
If the proposed easement conflicts with existing improvements, then Central San may
reduce the easement width at its sole discretion, but in no case shall the width be less
than 10 feet.
9-03 Improvements Allowed within Central San Easement
A. All Central San structures within easements shall always remain exposed and
accessible via all-weather access roadways for routine and/or emergency
maintenance.
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B. Owner shall limit surface improvements in easements to paving and modest
landscaping in compliance with District Code §7.15.060. Neither trees nor
stormwater improvements (e.g., NPDES Provision C.3 requirements) will be
allowed within the easement. Additional examples of prohibited improvements
are listed in District Code §7.15.010.
C. With Central San's written approval, the following encroachments may be
authorized within the easement: utilities, fences, or retaining walls that cross at
angles between 450 and 900 to the centerline of the easement and at elevations
that will not conflict with the use of, or access to, Central San's facilities.
9-04 Documents Used to Convey Property Rights for Central San Facilities
The following documents are generally acceptable for establishing the required property
rights outside of existing public right-of-way:
• Grant Deed conveying fee ownership of a prop y to Central San
• Easement dedicated on filed subdivision t al San or as a "Sanitary
Sewer Easement" (SSE)
• Grant of Easement to Central San
• Easement offered to Central San by an Irr le Of dication (IOD)
• Existing private access and/or utility ea ent rtenan to a property that
specifically cites uses of "sewers" a ties"
• Deed Reservation reserving sewer d/or ease ents on or across a
property
• Final Order of Possession o al Ord of C demnation that conveys the
needed property ri
• Covenants, Condition d ctions recorded against a property
• A License and Leas u a property to Central San
9-05 Irrevocable Offers Dedica y arate Instrument
When an IOD by separaa rumeff not granted on a subdivision map) is proposed to
establish the property rights sed Central San facilities, then the following shall
apply:
A. Submittals
The Job Engineer shall submit two copies of a legal description and "Right-of-
Way Map for Sewer" (Plat) for each easement, and a copy of the complete
recording or filing information for any lot, parcel or map mentioned in the
description.
The Job Engineer shall address any revision required by Central San, then
submit original wet-stamped and signed legal descriptions and plat maps. Central
San will prepare and send an IOD to the Property Owner. The Property Owner
shall return the signed and notarized document(s), ready for recording, before
Central San will issuance a Sewer Extension Permit.
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B. Legal Descriptions
The Job's Land Surveyor shall submit a legal description for each proposed
easement in the form shown on Figure 2 for review. The legal description shall
follow these guidelines:
• Include Title: Exhibit A - Sanitary Sewer Easement
• Generally, easements are described by centerline, sideline, or perimeter
metes and bounds description, as appropriate
• Description tied to at least two found survey monuments of record
• Character of survey monuments and references to recorded information if
applicable
• All easement lines having a relationship to other boundary lines are qualified
as such
• Central San job number, Easement Central San-assigned parcel number and
the Assessor's Parcel Number (APN) in the pIL right-hand corner
• A basis of bearing statement may be i de appropriate
• Area of description
• Reference to accompanying plat (Exhib by w ref rence made part of
the Legal Description
• Wet stamp or seal with signature to b Job's Land Surveyor
• Sheet Number and Number of s
C. Right-of-Way Map for Sewer (P t)
The Job's Land Su yor s ubmit ig f-Way Map for Sewer (e.g., Plat)
for each proposed en he for n in Figure 3 for review. The plat
shall follow these gui s:
• Use Central S lat late
• Plat shall be tit : Exhibit Central San Right-of-Way Map for Sewer
• The grantor's n s), re ing information and Assessor's Parcel Number
(APN)
• Ties to two found survey monuments of record and basis of bearing, as
appropriate
• When possible, adjacent roads are shown
• Scale of map and orientation arrow pointing toward top of the sheet
• Central San job number and easement parcel number
D. Closure Report
The Job's Land Surveyor shall provide a mathematical closure report for the
description or alignment with closure error, if required.
E. After the job passes inspection by Central San, then the Board of Directors will
consider formally accepting the IOD(s), per District Code §7.02.
50 Part III.Public Sewer Collection Systems
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9-06 Irrevocable Offers of Dedication on Subdivision Maps
When public streets or easements are proposed to be dedicated on a subdivision map,
the following shall apply:
A. Certificate Sheet Required for final Subdivision Maps
1. Public Sewers in Easement
When easements are offered for dedication to Central San on a recorded
map, the Owner's Statement shall include the latest Sanitary Sewer
Easement (SSE) offer language and the map shall correctly delineate the
SSE limits so that the public sewers, as shown on the corresponding sewer
extension Plans, are located within the centerline of the SSE or in the location
approved on the Plans
2. Public Sewers in Public Lands / Roads
When public lands/ roads are offered f e to the Local Agency, the
Owner's Statement shall include this r I and the map shall
correctly delineate the public land/ roa so the public sewers, as
shown on the corresponding sewer ext Plan , cated within the
centerline of the public lands/ roads in th tion roved on the Plans.
B. Submittals
Prior to issuance of a Sewer E n n mi Job Engineer shall submit a
copy of the filed subdivision and ific heet.
If the subdivision m nn filed p commencement of sewer
construction, then Cen an Subdivision
rant permission to begin the sewer
construction and w' at map be filed, recorded and
submitted to Cent San pri tcceptance of the proposed public sewer.
C. After the job passe pectio Central San, then the Board of Directors will
consider formally ac ers of Dedication, per District Code §7.02
9-07 Appurtenant Easements
When existing private access and/or utility easements appurtenant to the property of the
Owner are proposed for the installation of Central San facilities, then the following
procedures shall apply:
A. Submittals
The Job Engineer shall submit copies of all deeds demonstrating that each
property has an appurtenant right for the Central San facilities with a summary
document and map delineating the location of each Owner's property and its
appurtenant rights.
Part III.Public Sewer Collection Systems 51
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B. Road Maintenance and Access (RMAs)
For Central San facilities proposed within private or proposed public roadways
where appurtenant access and utility easements are used to establish the
property rights, the Owner shall execute a road maintenance and access
document that identifies the responsible party (not Central San) for maintaining
the road to meet Central San access requirements. The document shall be noted
on the Right-of-Way Log and may need to be recorded prior to Central San's
issuance of a Sewer Extension Permit.
52 Part III.Public Sewer Collection Systems
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EXHIBIT A CCCSD Job No.4950B
PERMANENT EASEMENT Parcel 1
REAL PROPERTY in city of Martinez, county of Contra Costa, state of California,
described as follows:
Portion of Lot 284 as shown upon LaSalle Heights — Unit No. 8 filed on November 16,
1949 in Book 38 of Maps at Page 31, Contra Costa County records (38 M 31) being
also the parcel of land described in the Grant Deed to John Smith and Jane Smith,
husband and wife, and to Elizabeth A. Jones, a married woman as her sole and
separate property, all as Joint Tenants, recorded on July 16, 2000 as Recorder's
Document 2006-0300449, said county records described as follows:
Commencing at a found railroad spike stam 4" as said spike is shown upon
the Record of Survey filed on November of Land Surveyors Maps
at Page 41, said county records (96 e 2° 56' 30" west 97.15 feet
(96.68 feet per 96 LSM 41) alonn edine or Drive to a found railroad
spike stamped "LS 3874" as on said m nce le id centerline north
08° 41' 57" west 146.57 feet tpoint on the northw line 5' Sanitary
Easement the southeasterly line of which is nt e southeasterly line of
herein above referenced Lot 284, said poi ein POI F BEGINNING, said
POINT OF BEGINNING bears north 58° 12" s eet from the westerly corner of
said easement; thence from said PO IN . north 45° 46' 31" east 45.01
feet; thence north 65° 20' d'" wes 34 feet h rthwest line of said Lot; thence
along said line north 43° 1::, Leas 55 fee , ce south 650 20' 47" east 69.69
feet; thence north 69° 06' 51' 54et to the northerly corner of said 5' Sanitary
Easement; thence south 5' " we .43 feet along the northwesterly line of
said easement to the PO' T OF B NI G.
Containing an area of 1,2 ar et, more or less.
Attached hereto is a plat entitles Exhibit B and by this reference made a part hereof.
p AqL q
DP 4950B pcl 1 APN 374-171-008
Page 1 of 1 9/13/2007
Figure 2. Sample Legal Description for Exhibit A
Part III.Public Sewer Collection Systems 53
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EXHIBIT "B"
CENTRAL CONTRA COST. SANITARY DISTRICT
RIGHT OF WAY MAP for SEINER
as AA PI? of
10,
w -0
Etlsting Concrete ` ll a
Retaining wall 'Q� 1
adC-2046-0300449
C�
P.O.C.
R �
LEGEND ro tl4
FOUND RR SPIKE '--- l �'�
STAMPED-LS 3374° y 4
a P,p,B, POINT OF BEGINNING o
13RAWN 6Y; KIWI EAC CHECKED 6Y; EAC SYSTEM MAP: 10A2 JOB NO.: 4950B
SCALE; DATE; CO,ASS MT,NO,; PARCEL NO,;
1'=30' S-_3-07 374-171-008 1
Figure 3. Sample Plat(Right-of-Way) Map for Exhibit B
54 Part III.Public Sewer Collection Systems
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Section 10. Submittal Requirements
10-01 General
Plans shall be submitted to Central San for proposed public/private main sewer
extensions or relocations.
In accordance with the Business and Professions Code, Professional Engineers Act,
§6735, all civil engineering Plans, specifications, and reports submitted to Central
San shall be prepared by a licensed civil engineer or by a subordinate under his or
her direction, and shall be signed by him or her to indicate his or her responsibility
for them. In addition to the signature, all final civil engineering Plans, specifications,
and reports shall bear the stamp of the registrant, and the expiration date of the
certificate or authority.
10-02 Application
Apply for a Sewer Extension to Central San's Per
n C unter and pay applicable
fees. Additional fees will be due prior to the i he Sewer Extension
Permit.
10-03 Supplemental Reports (if required[)
A. Capacity Study: see Subsection 8-0
B. Geotechnical Report: see Subs on
C. Arborist Report: Where se s os cross the existing drip lines of
large, established trees, as h age k trees, Central San may require
an evaluation b erti rborist cludes:
1. probable natur nt, depth of the existing root system,
2. impact of s r tren o e existing roots,
3. necessary autions procedures to minimize impacts of sewer
construction,
4. any realignment of the sewer proposed to avoid damage,
5. alternative trenching methods,
6. special backfill requirements, and
7. post-construction actions needed.
10-04 Additional Submittals (if applicable)
A. Annexation Request and Petition: If a property to be served by the job is not
within Central San's service area, then submit an Annexation Request and
Petition.
B. Right-of-Way: Submit Irrevocable Offer of Dedication, Grant of Easement,
Subdivision Map, and/or appurtenant easements in compliance with Section
9.
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10-05 Design Submittal(s)
Once the design concept is approved, the Job Engineer will be notified when to
submit the proposed sewer design plans. Job Engineer shall refer to the appropriate
guidance document for the sewer design and plan preparation.
1. All submittals shall be made electronically as a 300 dpi, PDF or TIF
format; except for project security bonds or right-of-way instruments that
will be recorded.
2. Typical design submittals shall include the following plan sheets:
a) Cover Sheet
b) Abbreviations/Notes/Legend sheet
c) Plan & Profile Sheet
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Section 11. Permitting for Construction
11-01 General
After Central San approves the sewer design plans for a Sewer Main Extension, the
Applicant will be notified that they may proceed to the permitting stage.
11-02 Administrative Submittals
A. Final Plans: Complete set of approved sewer design plans (24" x 36"),
electronically as a 300 dpi, PDF or TIF format, wet-signed and stamped by
the Professional Engineer
B. Fees: Payment of any remaining fees, including inspection fees
C. Project Cost Estimate: Submit the project cost estimate for approval prior to
submitting the Project Security Deposit. The estimate shall be for the public
sewer facilities only and must be itemized o a unit basis (e.g., no lump sum
estimates).
D. Project Security Deposit:
1. Project security deposit shall be 10 he ap cost estimate and
shall be submitted to Central San nor t uance a construction
permit and remain in full force ct u e project is accepted by
Central San. Note: Upon Ce is hori on, the project security
maybe reduced to 10% f r w n iod.
2. Project Security shall submit by Applicant/Owner in one of the
following for
a) Surety Bo orp Surety Bond issued by a surety acceptable
to Centr an uth d to issue such surety bonds in California.
b) Cashier heck: S e made payable to Central San.
c) Certificate it: 2 Certificates of Deposit (CDs), payable to
Central San, first for 90% and the second for 10% of the project
security deposit. The first CD (90%) shall mature upon passing the
Final Inspection; the second CD (10%) shall mature after the warranty
period. Interest earned by both CDs shall be payable to the Owner.
Note: Additional fees shall be paid for legal review to ensure
compliance of the proposed CDs.
d) Letter of Credit: An irrevocable letter of credit or "set-aside" letter from
an established financial institution and in a form acceptable to Central
San. Note:Additional fees shall be paid for legal review to ensure
compliance of the proposed Letter of Credit.
E. Owner's Sewer/Recycled Water Improvement Agreement:
The property owner proposing to install new public sewer/recycled water
facilities, or his or her properly authorized agent, shall execute an Owner's
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Sewer/Recycled Water Improvement Agreement to provide appropriate
assurance that the work is diligently pursued to completion and in accordance
with Plans and specifications for the work as reviewed by Central San
(Reference: District Code §5.16).
11-03 Pre-Construction Submittals
A. Prior to the issuance of the permit, submit the following:
1. Phasing Plan (if applicable)
If job will be constructed in phases, the Final Plans shall delineate a
phasing plan on the Sanitary Sewer System Map on the Cover Sheet that
shall be approved by Central San. Prior to the construction of each section
or phase, the Job Engineer or Contractor shall submit the Cover Sheet
with the portion of work to be constructed under the particular section or
phase "highlighted" on the 1" =100' scale S itary Sewer System Map, cut
sheets for the particular phase, and ap a S.
1. Shop Drawings (if required)
Submit site-specific shop drawings for I sub If submittals
are required for precast concrete ba , the shop rawings shall
show the inverts, channeling, an f se ipes in and out at each
location.
2. Bypass Plans if applicabl
3. Cut Sheets & F' Stal
a) Vertical control ro n of the new sewer during construction
are critical t al s ss of gravity sewer systems. The
integrity of sewer is ost vulnerable during construction,
therefore c akes an t sheets shall be submitted after grading of
roadway sub e a ad elevations are complete. Central San
review is requir to issuance of the Central San permit for
construction.
b) After grading of roadway subgrade and pad elevations are complete,
the Job Engineer or Surveyor shall conduct a field survey. Place offset
cut stakes at the following design locations:
(i) For the main sewer at:
• SS Station 0+00 at the downstream point-of-connection with
Central San's existing system
• manholes and structures (e.g., manholes)
• wyes and taps for laterals at the main
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• joints, couplings, or fittings where pipe deflection will15
exceed three degrees (30)
• beginning and end of horizontal and vertical curves (BC
and EC, BVC and EVC)
(ii) For the lateral (see DWG 22-01 through 22-04 for layout 0+
requirements) at:
e-
• 450 fitting
• 5 feet beyond property or easement line
(iii) As shown in Figure 5. Sample Cut Stake, each cut stake shall
be marked with the following: oar
• offset distance from centerline of the sewer
i
• sanitary sewer stationing �M
• depth of cut (surface to i rt n) Figure 4.
Sample Cut
• structure type and numbe plica Stake
(iv) The maximum intervals f cem f cut stakes shall be:
Table 9. Required Intervals for Cut Stakes
Type of Alignment Maximum Interval (ft)
Straight C n slo _20°/ 50
horizontal stant slo 25
<_ 500 25
Horizontal cu
Radi 500 ft 50
Vertical effes 25, minimum of 5 stations
c) After cut es ha een placed, the Job Engineer or Surveyor shall
submit co Sheets for gravity sewers.
The Cut Sheet shall use form shown in Figure 6. Cut Sheet for Sewer.
A sample form is available from Central San. To verify that new pipe
will be adequately protected during construction, Cut Sheets shall
include:
• ground elevation: at the centerline of the new pipe
• depth of cover: from the bottom of the subgrade to the top of
pipe at the centerline for each station (see Table 7)
d) If any cut stakes are removed, damaged, and/or relocated before they
have been used to set the grade of the sewer, then the Job Engineer
or Surveyor shall replace the stakes prior to the installation of the
sewer.
4. Pre-Construction Meeting (if required)
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CENTRAL CONTRA COSTA SANITARY DISTRICT
CUT SHEET FOR SEWER
FOR JOB ENGINEER'S USE DISTRICT DATA
PREPARED BY KED sr. B-. 1 of 1 JCB 4 2005
OWNER MJP Developer: CONTRACTOR: Jones&CO.,Inc REVIEWED BY JMM
DATE: 08/05/2010 ENGR JOB# Engr 05-00026 Fu;a 5125 Dare 8112/2010
I.KE Smith Rd.,SS Line'A' SWON 0+00 to 4+23
STATION PIPE DIAMETER STRUCTURE SEWER OFF OFF SET FIL ELEV OFF SET REMARKS `C!L 'CIL
lin.! SLOPE SET STAKE [invert] CUT GROUND COVER
Iftfn ELEV, ELEV.
0 + 00.00 8.00 Ex.MH 8'LT 108.00 10000 8.00 Start 104.33 5.00
0.0077
0 + 25.00 8.D0 8'LT 107.35 100.19 7.17 105.00 5.47
0.0077
0 + 50.00 8.D0 8'LT 107.22 1 e 6.84 105.21 5.49
0.0077
0 + 65.70 8.00 Lat.Rt. 8'LT 1 6.79 105.33 5.49
0.0077
0 + 75.00 8.00 .58 105.65 5.74
0.0077 14
1 + 00.00 8.00 M M#1 06 k TMU f.4 .7 105.99 5.89
1 + 25.00 8.00 LT 10871 7.84 A,106.39 1 5.99
1 + 48.40 8.D0 8'LT 109.03 101.3 88 106.58 6.00
0.012
1 + 57.40 8.D0 11114*Coupling IT LT .4B 107.13 6.34
0.012 AW
1 + 62.00 8.D0 Lat.Rt. W LT 109.15 7.64 107.19 6.34
0.012
1 + 75.40 8.00 111/4*Coupling LT 109 101. 66 107.31 6.30
0.012
1 + 93.40 8.00 111/4*CoAWing 8'LT 1 1 764 107.43 6 2i
0.
2 + 11.40 8-00 11 1I4°Co LT 109. 2.11 7.54 1 107.551 6.11
0.012
2 + 29.40 8.00 11 114°rnij 109.87 1 102.32 7.55 107.89 6.23
2 + 38.40 8.00 9 LT 97 102.43 8.54 EC 108.15 6.38
0.01
2 + 50.00 8.00 T 1 109.33 102.57 6.76 108.39 6.49
0.012
2 + 75.00 8.00 8'LT 109.43 102.87 6.56 109.39 L 19
3 + 00.00 8.D0 9 LT 110.03 103.17 6.86 109.99 7.49
0.012
3 + 25.00 8.00 8'LT 110.36 103.47 6.89 110.49 7.69
0.012
3 + 50.00 8.D0 6 LT 110.48 103.77 6.71 110.89 7.79
0.012
3 + 75.00 8.00 8'LT 110.75 104.07 6.68 110.99 7.59
0.012
4 + DOM 8.00 8'LT 111.15 104.37 6.76 111.49 7.79
0.012
4 + 23.00 8.00 MH#2 9 LT 112.27 104.85 7.62 End 111.97 7.99
Figure 5. Cut Sheet for Sewer
11-04 Permit Issuance
A. Permit will be issued after a favorable review of submittals.
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B. Expiration of Plans: Plans signed and stamped "Final Review for
Construction" shall expire 3 months from the date on the stamp unless work
has commenced on the project.
C. Changes after Final Plans are Issued: When any change(s) to Plans are
proposed after the Final Review for Construction, or are required due to field
conditions being different from those indicated in the final construction plans,
(including, but not limited to, changes of pipe type, class, grade, cover,
quantities or any other details that may affect the sanitary sewer installation),
the work subject to change will be suspended until the change(s) have
received favorable review by Central San through the above described
process.
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Section 12. (Not Used)
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Part IV. Recycled Water
Distribution System
Section 13. Design Criteria
13-01 General
A. Part IV is a placeholder while Central San develops detailed Standard
Specifications for Recycled Water. In the interim, design, property rights,
submittal requirements, and plan review shall follow Part 11 Private Sewage
Disposal Systems and Part 111 Public Sewer Collection Systems as applicable.
Contact perm its(a)-centralsan.org for more information.
B. All recycled water facilities to be connected o the Central San system shall
be designed and constructed in a man nt with service to the
ultimate distribution area in complianc ith ct Code 9.08.020. Central
San shall review Plans submitted for c id . new or modified facilities
to evaluate the service requirements for Itima ' tr'hution area.
C. Private recycled water systems (e. icall scape irrigation plans)
connecting to Central San's pub ' shan, , reviewed, approved,
inspected and tested by Centra an.
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Section 14. Property Rights
14-01 General
Comply with Section 9.
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Section 15. Submittal Requirements
15-01 General
Comply with Part III.Section 10.
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Section 16. Permitting for Construction
16-01 General
Comply with Section 11, except pre-construction submittals for permit issuance will
not require cut sheets or precast manhole bases. Any other pre-construction
submittals will be determined during the Plan Review process by Central San.
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Part V. Construction
Requirements
Section 17. Control of the Work
17-01 Authority of the Central San Inspector
A. The Inspector shall decide all questions that arise in the field regarding the
quality or acceptability of materials and/or equipment, completed work and/or
the interpretation of the Plans and/or these Specifications.
B. If the Inspector determines that any work is not in compliance with the Permit,
Plans, Specifications, District Code, or any li able rules, laws or
regulations, then the Inspector may su n , issue a Notice of Violation,
or order that the noncompliant work b rr r removed and replaced,
so as to fully comply with the requirem f wo us ended, the
Contractor shall do all work necessary 'de fo mooth, and
unobstructed passage for traffic t the truction zone during the
period of the suspension of wor end ch workday. The work
may be resumed when conditio are ed a d verified by the Inspector
and the Contractor is willin n bl pr resume work.
C. If the Contractor ils to ply it er made under the provisions of
this article withinF aso time, al San may have the defective work
corrected at the C for ense.
D. No decisions r ered, dire ns given by the Inspector shall relieve the
Contractor, the caner or wner's surety of their obligations or
responsibilities 'ligentl osecute the job or establish any contingent
liability on the pa al San.
E. If the Contractor fails to act promptly or diligently in the prosecution of work
done under a Central San permit, or should the urgency of a particular
situation require that corrections be made before the Contractor can be
notified or respond to notification, then Central San may have the corrections
made at the Contractor's expense, and the Contractor shall be charged and
shall pay to Central San the cost of such work plus the current Central San
overhead rate to compensate Central San for administration of work (District
Code §5.10).
17-02 Inspection
A. Access: All work done and all materials furnished shall be subject to
inspection. The Inspector shall have access to the work at all times during
construction, and the Contractor shall provide proper and safe facilities for
such access and inspection. The Inspector shall be furnished with every
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reasonable facility for ascertaining that the materials and the workmanship
are in accordance with the requirements and intentions of the Plans and
these Specifications. The Contractor shall submit properly authenticated
documents or samples of materials demonstrating compliance with these
Specifications at any time so requested by Central San.
B. Schedule Inspections: The Contractor shall call to arrange for Central San
inspections required by these Specifications a minimum of one business day
prior to the commencement of work. No work shall begin prior to scheduling
of an inspection. The Contractor shall notify the Inspector of any changes in
work schedule affecting inspections as soon as possible to allow time for
rescheduling. If less than 1 working day's notice is provided, then
rescheduling fees will be required.
C. Regular Work Hours and Overtime: Regular work hours and District Holidays
are posted at https://www.centralsan.orq/r)od/hwirs-directions. Any inspection
performed outside regular work hours will at the overtime rate and
paid by the Contractor. If amounts owed f suc ices are not paid within
30 days from the date of billing, then no p or ional work will be
issued.
D. Time Restrictions: The following activi ' ve estrictions to ensure the
work can be completed and the site o urin ular inspection hours.
Any variances shall be approved i dva a Inspector and may be
subject to overtime or addition in c ch
Table 10. Time Restrictions ogWonstr n Activi
Activity Shall start before
Trenchless 1 p.m.
Tapping or connecti rvic n or 1 p.m.
trunk sewers
17-03 Superintendence
The Contractor, or a representative of the Contractor who is authorized to make field
decisions, shall always be present at the jobsite when work is in progress. The
Inspector will communicate any determinations or instructions to the Contractor or its
authorized representative. Any determination or instruction given by the Inspector
that is not otherwise required by these Specifications or the District Code to be in
writing will, on request of the Contractor, be given or confirmed by Central San in
writing.
17-04 Safety
A. The Contractor shall be responsible for the safety of its plant, equipment and
personnel, and the public in the immediate vicinity of work subject to these
Specifications. The Contractor shall take any precautions it deems necessary
to prevent injury to people and damage to property.
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B. The Contractor and its subcontractors shall comply with all applicable federal,
state, and local safety rules, regulations, requirements, and orders in the
performance of the work. This shall include the Construction Safety Orders
and rules of the Division of Industrial Safety, State of California, as contained
in the California Administrative Code, Title 8, Chapter 4.
C. Protection of excavation and trenching shall comply with District Code
§9.10.030 and with applicable provisions of the State of California
Administrative Code, Title 8; Industrial Relations, Chapter 4, Subchapter 4,
Construction Safety Orders, and the federal Occupational Safety and Health
Administration (OSHA) Regulations, 29 CFR Part 1926 Subpart P —
Excavations.
D. Competent Person: A Competent Person shall be designated by the
Contractor for any job that requires any individuals to enter a trench or other
excavation regardless of depth. The Comp nt Person shall conduct daily or
more frequent site inspections as appr a designated Competent
Person shall possess a current certifi on.
E. Underground Utilities: Prior to any exca n, it is C tractor's
responsibility to determine the location 'lity in ons including,
without limitation, pipes, conductor con for electricity, gas, water,
telephone, cable TV, sewage, s e t ould be encountered
during excavation. At least 48 rs p ommencing any excavation, the
Contractor shall notify Un n ery lert (USA) by calling 1-800-
227-2600, or 811 in ac c nce w Cal' nia state law.
F. Stability of Adjac tru : Syst for support of structures adjacent to
excavations are t ovi hen the stability of such structures is
threatened by va per s. Sidewalks, pavement, and other
structures shal of be un ined unless an appropriate protective system is
provided to pro from c se.
17-05 Plans
A. Final Plans for Main Extensions
1. No changes shall be made in any plan or drawing after it has received
favorable "Final Review for Construction" by Central San, except with
Central San's written concurrence.
2. The Contractor shall keep copies of the Central San-stamped Final Plans
for the project, the Central San Permit, and applicable permits from other
governing agencies incidental to the work at the jobsite (e.g.
encroachment permit) during prosecution of the work, and shall make the
copies available to the Inspector upon request. The Final Plans, these
Specifications, and required supplementary documents are considered
requirements of the work, and the Contractor shall familiarize itself and
fully comply with all such requirements.
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B. Submittals
1. Submit shop drawings and/or other information as required by the Final
Plans or these Specifications to the Inspector for favorable review prior to
commencing the related work. These submittals may include, but are not
limited to schedules, fabrication detail drawings, certifications that
materials comply with the specification, evidence of worker's special
qualifications, and information regarding proposed alternate materials,
methods and/or equipment.
2. Review of the Contractor's submittals by Central San shall not relieve the
Contractor of its responsibility for the accuracy of dimensions and details
or for completion of permitted work in compliance with these
Specifications or the Final Plans.
C. Conformity with the Plans and Allowable Devia ions
1. Finished surfaces shall conform to the ' s, s, cross-sections, and
dimensions shown on the Final Plans.
2. Only deviations from the Plans approve dvan ntral San will
be allowed. Central San reserves the ri t der d on from the
Plans and Specifications as deem essa r the proper completion
of the facilities being constructe
17-06 Lines and Grades
A. Where available gra a for ewer i all n is less than 2% and where
the side sewer is m han feet in , the Central San Inspector may
require that cut sheet fie kes be submitted by a licensed surveyor
and/or the Contrac ind I-standard laser grade control system to
confirm that the pi is inst to proper grade.
B. The Contractor sh otify th Engineer of the requirements in advance
of starting operation re stakes or marks. The Contractor shall
request utility marking fr SA prior to staking, and favorable review by the
Inspector of stakes in the field is required prior to the commencement of work.
In the judgment of the Inspector, if the stakes or marks suggest that the new
work may conflict with existing improvements, the Contractor shall pothole the
existing improvements to determine whether redesign of the work is required.
C. Stakes and marks shall be carefully preserved by the Contractor. If any such
stakes and marks necessary to complete construction are destroyed or
damaged, the Contractor shall arrange for such stakes and marks to be
replaced.
D. All distances and measurements shall be made in a horizontal plane. Grades
are given from the top of hubs, nails, or other points designated by the Job
Engineer.
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17-07 Workers
The Contractor shall employ enough competent workers or subcontractors to
produce the work required. If an employee of the Contractor or any subcontractor is
incompetent, appears to be under the influence of alcohol or illegal drugs, or acts in
an unsafe or improper manner, the Contractor shall remove that person from the site
immediately. However, nothing contained in this paragraph shall be construed to
shift the responsibility for supervision of employees of the Contractor or any
subcontractor from the Contractor or subcontractor to Central San, or to require
Central San to take any action regarding any employee of the Contractor or
subcontractor.
17-08 Equipment
The Contractor shall provide adequate and suitable equipment (including, but not
limited to, Personal Protective Equipment, shoring, trench plates, traffic cones, etc.)
needed to produce the quality of work required ri to ommencing each day's work
and, when ordered by the Inspector, shall re able equipment from the
work.
Each machine or piece of equipment shall be ted b n experienced in
handling the make of machine or piece of equi m use, speed or rate of
production not to exceed that recommen the facturer.
17-09 Notice to Ad'acent Property O rs a 'den
The Contractor or Owner shall pr e ri not o property owners and/or
residents who may be i acte main er ecycled water extension or
private side sewer or re ed s e later . The notice shall describe the
type of work to be done a to a schedule. For private facility work on
property owned by so r th e Contractor's customer, the notice shall
be made at minimum 2 works ays rior to the beginning of any work.
17-10 Public Conveni
A. No work may be p d in any public right-of-way without first obtaining an
encroachment permit from the agency having local jurisdiction (i.e., local
traffic engineering, public works department, and/or police).
B. The Contractor shall provide for the safe passage of traffic, including
emergency response vehicles, through the work during construction if work is
located in or affects traffic in any public or private road, right-of-way or access
easement. The attention of the Contractor is directed to the encroachment
permit requirements of Caltrans and/or Contra Costa County and/or cities
within the County regarding the Contractor's responsibility for providing for the
convenience of the public in connection with its operations. Where a conflict
arises, the local ordinances and regulations shall prevail. The Contractor shall
comply with the State of California Department of Transportation's "Manual of
Temporary Traffic Controls for Construction and Maintenance Work Zones"
(latest edition), and any applicable local agency encroachment permit
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requirements when work is done in streets, roadways, or similar
thoroughfares subject to vehicular traffic.
C. The Contractor shall conduct its operations to minimize possible obstruction
and inconvenience to traffic, and have under construction no greater length or
amount of work than it can prosecute properly with due regard to the rights
and convenience of the public.
1. Where existing roads are not available for use as detours, all traffic shall
be permitted to pass through the work with as little inconvenience and
delay as possible.
2. Spillage resulting from hauling operations along or across the traveled
way shall be removed immediately.
3. For trenching in existing streets, excavation and pipe installation shall be
coordinated so that no more than 100 linea et of trench shall be open at
any time. Backfilling operations shall cl I pipe installation. In new
subdivisions more than 100 feet of tre pened if allowed by the
Inspector and if the excavation is prop ore ed or benched.
D. Convenience of abutting Property Owners o e roa ewer shall
reasonably be provided for. Convenie ss t eways, houses and
buildings along the line of the work I b intai and temporary
approaches to crossings or interse ng shall be provided and kept
in good condition.
E. Right is reservedt 'es, I and co orities, and to water, gas,
telephone, cable an tric er trans ssion utilities to enter upon any
public highway, roa -of- for the purpose of making repairs and
changes that have com ces by the reason of the sewer or recycled
water installation.
F. All fences subject t rfer a shall be maintained by the Contractor until
the work is complete h time they shall be restored to the condition
existing prior to starting the work.
G. Excavation and backfill shall always be conducted in such a manner as to
provide a reasonably smooth and even surface satisfactory for use by traffic.
When possible, sewer/recycled water construction shall be conducted on one-
half the width of the traveled way at a time and that portion of the traveled
way being used by traffic shall be kept open and unobstructed until the
opposite side of the traveled way is completely ready for use by traffic.
H. While trenching and paving operations are under way, the Contractor shall
ensure that traffic can use the shoulders and the side of the roadbed opposite
the one under construction. When sufficient width is available, a passageway
wide enough to accommodate 2 lanes of traffic shall always be kept open at
locations where construction operations are in active progress.
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I. Bridges designed by a licensed Professional Engineer and approved by
Central San shall be installed and maintained across the trench at all
crosswalks, intersections, and at such other points where, in the opinion of
the Inspector, traffic conditions make it advisable for the convenience of
pedestrian traffic.
J. In order to expedite the passage of traffic through or around the work and
where ordered by the State, municipal, local, and/or county authorities having
jurisdiction and/or the Inspector, the Contractor shall install signs, lights,
flares, barricades, and shall furnish a pilot car and driver and other facilities
for the sole convenience and direction of traffic. Whenever the Contractor's
operations create a hazardous condition or where directed by the State,
municipal, local, and/or county authorities having jurisdiction, the Contractor
shall provide and station competent flaggers whose sole duties shall consist
of directing the movement of traffic through or around the work.
K. In addition to the requirements specifie ing facilities and flaggers
to expedite the passage of traffic thro or d the work, the Contractor
shall furnish and erect, within or adjac e of the work, such
warning and directional signs as may b ired b eviously named
agencies having jurisdiction.
17-11 Maintenance of Access and Det
A. The Contractor shall maintain ug en tes on the jobsite to effect
immediate access for em c v cles reasonable access for
property owners ecte the wo f ired, the Contractor shall
construct, M
nt nd ve det o direct both pedestrian and
vehicular tc thr or d the jobsite, as shown on the Plans, or as
directed by the r of ublic agency having jurisdiction.
B. At the end of e work d e Contractor shall ensure that excavations are
properly secureored covered with trench plates to provide for public
safety and uno I bVIRIJEW1 e access for vehicular and pedestrian traffic
C. Where the Contractor's operations are not being satisfactorily controlled or
maintained by the Contractor for safe passage of traffic, the Inspector and/or
other public agencies having jurisdiction may order the Contractor to correct
any unsafe conditions, and the Contractor shall comply with such orders.
D. The failure or refusal of the Contractor to properly provide emergency or
Property Owner access, or to employ, control or maintain detours shall be
sufficient cause for suspension of the work until proper access and/or detours
are provided by the Contractor.
17-12 Cleanliness of Jobsite
A. The Contractor shall keep the jobsite clean and orderly and shall sweep
streets affected by the work daily.
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B. The Contractor shall promptly remove unused tools and equipment, surplus
materials, rubbish, debris, and dust and shall leave areas affected by work in
a neat and clean condition. Adjacent structures shall be cleaned of dust, dirt,
and debris resulting from the work, as directed by Central San or other local
jurisdictions, and adjacent areas shall be returned to the condition existing
prior to start of work.
C. All clearing, grubbing, demolition, abandonment, and salvage work shall
comply with applicable local, state, and federal statutes, ordinances, codes,
standards, rules, procedures, regulations and safety orders. The Contractor
shall obtain required permits and file required reports in a timely manner.
D. For Sewer Extension Permits, the Contractor shall use appropriately sized
equipment such as power brooms and street sweepers.
17-13 Construction Sequencing
A. All abandonments of side sewer connectio t ain sewer shall be
completed before construction of new sid ew ain sewer extensions
on the job.
B. No building connection will be allowed unti o tream r jobs passed in
accordance with Subsection 17-17 an pte ccordance with
Subsection 17-19.
C. Sewer pipelines shall be laid u r fr th t-of-connection to the
existing sewer with the bell e t e rad nd of each pipe length.
17-14 Temporary Storm Air Po n Cont
A. The Contractor shall be nagement practices for control of erosion
and jobsite runoff, utio ve and protection of water quality.
B. The Contractor sh omply II applicable federal, state, and local
regulations for disp of c aminated storm water, groundwater and
contaminated soils re om or discovered during excavation.
C. Major contamination, large spills, and other serious hazardous waste
incidents shall require initial containment and immediate response from
specialists. Spills of any material (e.g. sediment-laden wastewater) hazardous
or not, shall be reported immediately. The Contractor shall notify the
Inspector, the Office of Emergency Service (OES) at 8008527550, the
RWQCB at 510-622-2300, and the County Health Department when a
hazardous spill occurs. If there is indecision as to whether water quality will
be impacted, the Contractor shall contact the RWQCB to discuss the
situation.
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17-15 Bypassing Wastewater
When work requires that an existing sewer be taken out of operation, the Contractor
shall:
A. Secure and comply with the provisions of permits required for wastewater
bypassing operations, including encroachment permits for equipment and
piping from the applicable local jurisdiction (City or Contra Costa County).
B. Furnish all labor, materials, tools, equipment and supplies required to convey
wastewater from a point upstream to a point downstream of the work.
C. Flow in existing sewers shall not be dammed or otherwise restricted without
the approval of the Inspector. All wastewater facilities shall remain in
continuous operation during construction. Bypassed sewage shall be
contained in an enclosed hose or pipe and shall be redirected into the
sanitary sewer system. Dumping, overland jppenchannel flow of sewage is
strictly prohibited. Flushing of sewage 5r
from bypass equipment
leakage into storm drains or creeks is o p ed. Any spill or leakage
shall be immediately contained and co to nitary sewer or hauled to
the Wastewater Treatment Plant witho e de
D. Pumped bypass systems shall be uous onitored.
E. After the work necessitating by sin ple , flow shall be restored to
normal, all equipment shall o fr sewer system, and all pipes
or structures modified or ged ing ypass operations shall be
restored to their ina dition.
17-16 Disruption of Servi
If any operation result e pti service to the public main sewer or
recycled water distrib n syste e ontractor shall immediately notify Central
San's Inspector or Ce I San's rgency dispatch at 925-933-0990. In such a
case, Central San crew patched, and the Contractor will be billed for all
Central San's costs.
17-17 Final Inspection of the Work
The Contractor may request the Final Inspection when the following has been met:
A. All work covered by the Central San permit is completed, including correction
of deficiencies.
B. All proposed public facilities are set to the final grade.
C. For private developments such as subdivisions, tracts, townhouses,
condominiums and commercial centers, installation is complete for all other
utilities and permanent structural site improvements such as roadway
surfacing, curbs, gutters, sidewalks, etc.
D. The Contractor has cleaned all roadways, rights of way, and all ground used
in connection with the work, of all rubbish, excess materials, falsework,
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temporary structures, and equipment, and all parts of the work shall be left in
a neat and presentable condition. Nothing herein, however, shall require the
Contractor to remove warning and directional signs prior to acceptance by
Central San, but the Contractor shall do so immediately after the Final
Inspection is passed.
17-18 Warranty of Proposed Public Facilities
A. Immediately upon passing the Final Inspection for proposed public facilities, a
one-year warranty period on all work shall commence. The warranty shall be
in addition to, and not in limitation of, any other warranty/guarantee required
by law.
B. During the warranty period, Central San, at its sole discretion, may perform
CCTV or other inspections to determine the condition of the proposed public
facilities.
C. Any defective materials, faulty workmansh' eficiencies which are
discovered within the warranty period sh e c ed and/or replaced by
the Contractor.
1. The warranty period may be extended ditio e-year after
acceptance of such correction or r men he discretion of Central
San.
2. If the repair work is not satis c ly p in a timely manner,
Central San may proceed t e ess repairs and deduct the cost
from the projec urit ccorda District Code X5.16.080.
17-19 Acceptance of Propos ubli cilities
A. Staff will recomme a oa Directors, or their authorized
representative, ac t the p ed public facilities as contributed assets
after the following ditions been met:
1. The Final Inspecti assed in accordance with Subsection 17-17
2. The Owner has obtained, on behalf of Central San, sufficient property
rights in accordance with Section 9 or Section 14
3. Manufacturer's guarantees, instructions, and parts lists have been
delivered to Central San, if applicable
B. Acceptance of contributed assets for proposed public facilities shall be made
by Central San's Board of Directors, or authorized representative.
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Section 18. Control of Material
18-01 Contractor Furnished Materials
The Contractor shall furnish all materials required to complete the work. The
Contractor shall ensure that materials needed each day are on the jobsite prior to
commencing that day's work.
18-02 Source of Supply and Quality of Materials
Only materials listed on the Approved Materials List shall be used in the work.
Alternative materials conforming to the requirements of these Specifications and
favorably reviewed by Central San will be added to the Approved Materials List and
may be used in the work. All materials proposed for use may be inspected or tested
by Central San at any time during their preparation and use. If it is found that
sources of supply which have been approved do not furnish a uniform product, or if
the product from any source proves unacceptable t any time, the Contractor shall
furnish material from other sources on the App v rials List. No material
which after approval has in any way become it fo shall be used in the work.
18-03 Acquisition of Materials
The Contractor shall have on-hand, at the time co ction s on any section of
the work, all materials necessary to com at s of the work in a
reasonable time period.
18-04 Storage of Materials
Materials shall be store in an oved s in ea to ensure the preservation of
their quality and fitness he When fined to be necessary by the
Inspector, materials sC
ove Rnd/or placed on wooden platforms or other
hard, clean surfaces the d. Stored materials shall be located to
facilitate prompt insp18-05 Defective MateMaterials that do not a requirements of these Specifications shall be
deemed defective. Such de ivematerials, whether in place or not, shall be
rejected and removed immediately from the site of the work, unless otherwise
permitted by the Inspector. Central San may remove and replace defective material
should the Contractor fail to comply promptly with any order made under the
provisions of this paragraph. Any cost incurred by Central San will be charged to the
Contractor and/or Owners.
18-06 Trade Names and Alternatives
A. For convenience, certain equipment or materials may be designated on the
Plans in these Specifications, or in the Approved Materials List by trade name
or manufacturer citing model and/or part numbers. The use of alternative
equipment and/or materials that are of equal quality and of the required
characteristics for the purpose intended may be permitted in accordance with
the following requirements:
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1. All information necessary for evaluation of proposed alternative equipment
or materials shall be submitted a minimum of 10 working days prior to the
date that the equipment or materials shall be ordered by the Contractor to
ensure that there is no unacceptable delay in the work. This information
shall include: the names of the manufacturer and supplier of the item, the
manufacturer's model or part number, trade name or other item
identification, the manufacturer's published application, installation and/or
operation manuals and any guarantees, warranties, catalog cuts, data
sheets, and certification of compliance with standards testing agency
specifications or other test procedures used for product quality assurance.
2. Within 5 working days of its receipt of a complete request for consideration
of proposed alternative equipment and/or materials, Central San will
render a determination regarding the suitability of the proposed alternative
for addition to the Approved Materials List, and its determination shall be
final.
B. If the Contractor does not submit timely r est onsideration of
proposed alternative equipment and/or m , it use only equipment
and/or materials that are specifically name ese tions, shown on
the Plans or listed in the Approved Materials Li
18-07 Testing Materials
A. Whenever reference is made to a t d n of the American Society for
Testing and Materials (ASTM a y er re ized national testing or
standards organiza ' , it i e and at the most current test
method in use on th e o e Spe ions shall prevail.
B. Whenever abbrevia ' use these Specifications or on the Plans in
connection with a ere at I or work requirements or test methods,
such abbreviation all be c ued as set forth under Acronyms,
Abbreviations and S.
C. When requested by the ector, the Contractor shall furnish samples of
materials proposed for use in the work. Materials may be tested at any time
during the progress of the work. Material found to be defective shall be
rejected.
18-08 Inspection at Source of Supply
Central San may inspect equipment and/or materials proposed for use in main
sewer or recycled water extensions at the source of supply or manufacture.
Representatives of Central San shall be provided reasonable access to such parts of
production facilities that are related to the manufacture or production of equipment
and/or materials proposed for use in the work. Central San assumes no obligation to
inspect materials at the source of supply.
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18-09 Certificates of Compliance
A. Central San may permit the use of equipment and/or materials without
sampling and testing if the equipment and/or materials are accompanied by a
Certificate of Compliance stating that the equipment and/or materials comply
in all respects with the requirements of these Specifications. The certificate
shall be signed by an authorized representative of the manufacturer of the
equipment and/or materials.
B. All materials used based on a Certificate of Compliance may be sampled and
tested at any time. The fact that material is used on the basis of a Certificate
of Compliance shall not relieve the Contractor of responsibility for
incorporating material in the work which conforms to the requirements of the
Plans and Specifications and any such material not conforming to such
requirements will be subject to rejection whether in place or not.
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Part V1 . Technical Specificationsi
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Section 03 20 00 - Concrete Reinforcing
Part 1 - General
1.1 THE REQUIREMENT
The Contractor shall furnish, fabricate, and place all concrete reinforcing, welded
wire fabric, couplers and concrete inserts for use in reinforced concrete.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 03 60 00 - Grout
1.3 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. Commercial Standards:
ACI 315 Detail and Detailing of Concrete Reinforcement
ACI 318 Building Code Requirements for tructural Concrete and
Commentary
ASTM A 82 Specification for Steel Wire, ain ncrete Reinforcement
ASTM A 185 Specification for Steel Welde a Rei ement, Plain for
Concrete
ASTM A 615 Specification for Defor Plal let-Steel Bars for
Concrete Reinforcem
ASTM A 775 Specification for o C d `orcing Steel Bars
CRSI MSP-1 Concrete Rei ing St Ins ' e Manual of Standard
Practic,
Part 2 - Products
2.1 GENERAL
Materials specified in this ction th y remain or leave residue on or within the
concrete shall be classifie acce ble for potable water use by the U.S.
Environmental Protection Ag
2.2 CONCRETE REINFORCING
A. Concrete reinforcing for all cast-in-place, reinforced concrete construction
shall conform to the following requirements:
1. Bar reinforcement shall conform to the requirements of ASTM A 615 for
Grade 60 Billet Steel Reinforcement with supplementary requirement S-1,
or as otherwise shown.
2. Welded wire fabric reinforcement shall conform to the requirements of
ASTM A 185 and the details shown; provided that welded wire fabric with
longitudinal wire of W4 size wire and smaller shall be either furnished in
flat sheets or in rolls with a core diameter of not less than 10"; and
provided further that welded wire fabric with longitudinal wires larger than
W4 size shall be furnished in flat sheets only.
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3. Spiral reinforcement shall be cold-drawn steel wire conforming to the
requirements of ASTM A 82.
B. Accessories:
1. Accessories shall include all necessary chairs, slab bolsters, concrete
blocks, tie wires, dips, supports, spacers and other devices to position
reinforcement during concrete placement. All bar supports shall meet the
requirements of the CRSI Manual of Standard Practice, including special
requirements for supporting epoxy-coated reinforcing bars. Wire bar
supports shall be CRSI Class 1 for maximum protection with a 1/8"
minimum thickness of plastic coating that extends at least 1/2" from the
concrete surface. Plastic shall be gray in color.
2. Concrete blocks (dobies), used to support and position Concrete
Reinforcing, shall have the same or higher compressive strength as
specified for the concrete in which it ' I to Wire ties shall be
embedded in concrete block bars its
C. Epoxy coating for reinforcing and acce , w indicated, shall conform
to ASTM A 775.
2.4 EPDXY GROUT
Epoxy for grouting reinforcing bars sh e s ally ulated for such
application, for the moisture condit' n, pl' io erature and orientation of the
hole to be filled. Epoxy grout sha a th equi ents specified in Section 03 60
00 - Grout.
Part 3 - Execution
3.1 GENERAL
A. All reinforcem steel, w wire fabric and other appurtenances shall be
fabricated and d in rdance with the requirements specified herein.
Welded splices or cal couplers shall not be used unless approved by
Central San. Reinforcement shall not be straightened or re-bent.
B. Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency having jurisdiction (including the terms
and conditions of an encroachment permit issued by a city or county) are
greater, in which case the greater requirements shall govern.
3.2 FABRICATION
A. Concrete Reinforcing shall be accurately formed, and the fabricating details
shall be prepared in accordance with ACI 315 and ACI 318. Stirrups and tie
bars shall be bent around a pin having a diameter not less than 1" for No. 3
bars, 2" for No. 4 bars and No. 5 bars. Bars shall be bent cold. The Contractor
shall fabricate reinforcement bars for structures in accordance with bending
diagrams, placing lists and placing drawings.
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B. Fabricating Tolerances: Bars used for concrete reinforcement shall meet the
following requirements for fabricating tolerances:
Bars Tolerance inch
Cut or sheared length 1
Depth of truss bars +0, -1/2
Stirrups, ties, andspirals 1/2
All other bends 1
3.3 PLACING
A. Concrete Reinforcing shall be accurately positioned and shall be supported
and wired together to prevent displacement, using annealed-iron wire ties or
suitable clips at intersections. Concrete, plastic, metal supports, spacers, or
metal hangers shall support all Concrete Reinforcing. Where concrete is to be
placed on the ground, supporting concrete blocks (or dobies) shall be used, in
sufficient numbers to support the bars withouttlement, but in no case shall
such support be continuous. All concrete k to support Concrete
Reinforcing shall be tied to the steel with e ti are embedded in the
blocks. For concrete over form work, the for furnish concrete,
metal, plastic or other acceptable bar chair pace
B. Limitations on the use of bar support Is s e as follows:
1. Concrete dobies are permitted III , ex pt where architectural
finish is required.
2. Wire bar suppo are p tted on t s over dry areas and exterior
wall surfaces.
3. Plastic bar sup p er at all locations, except on grade.
4. Tie wires shall bent a rom the forms in order to provide the
specified concr covera
C. Bars additional to tho that may be found necessary or desirable for
the purpose of securing reinforcement in position shall be provided by the
Contractor.
D. Unless otherwise specified, reinforcement placing tolerances shall be within
the limits specified in Section 7.5 of ACI 318.
E. Bars may be moved as necessary to avoid interference with other Concrete
Reinforcing, conduits, or embedded items. If bars are moved more than 1 bar
diameter or enough to exceed the specified tolerances, the resulting
arrangement of bars shall be as acceptable to Central San.
F. Welded wire fabric reinforcement placed over horizontal forms shall be
supported on slab bolsters. Slab bolsters shall be spaced not more than 30"
on centers, shall extend continuously across the entire width of the
reinforcement mat, and shall support the reinforcement mat in the plane
indicated.
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G. Welded wire fabric placed over the ground shall be supported on wired
concrete blocks (dobies) spaced not more than 3 feet on centers in any
direction. The practice of placing welded wire fabric on the ground and
hooking into place in the freshly placed concrete shall not be used.
H. Epoxy-coated reinforcing bars shall be stored, transported, and placed in
such a manner as to avoid chipping of the epoxy coating. Non-abrasive slings
made of nylon and similar materials shall be used. Specially coated bar
supports shall be used. All chips or cracks in the epoxy coating shall be
repaired with a compatible epoxy repair material prior to placing concrete.
I. Accessories supporting reinforcing bars shall be spaced such that there is no
deflection of the accessory from the weight of the supported bars. When used
to space the reinforcing bars from wall forms, the forms and bars shall be
located so that there is no deflection of the accessory when the forms are
tightened into position.
3.4 SPACING OF BARS
The clear distance between parallel bars not g lled bars (except in
columns and between multiple layers of bars i s) s nr- be less than the
nominal diameter of the bars, not less than one an 1/2 time the maximum size of
the coarse aggregate, nor less than 1". T' r dis between bars shall also
apply to the distance between a contac� rplic adja t splices or bars.
3.5 SPLICING
A. Reinforcement spli hall on1 d at locations shown. When it is
necessary to spll info ent at s other than where shown, the
character of the s hall 9s acceptable to Central San.
B. The length of I or rei eme.,c bars, unless otherwise shown, shall be in
accordance wi C1318.
C. Laps of welded hall be in accordance with ACI 318. Adjoining
sheets shall be sec led together with No. 14 tie wire, one tie for each 2
running feet. Wires shall be staggered and tied in such a manner that they
cannot slip.
D. Splices in column spiral reinforcement, when necessary, shall be made by a
lap of 1-1/2 turns.
3.6 CLEANING AND PROTECTION
A. Concrete Reinforcing shall be protected at all times from conditions conducive
to corrosion until concrete is placed around it.
B. The surfaces of all Concrete Reinforcing and other metal work to be in
contact with concrete shall be thoroughly cleaned of all dirt, grease, loose
scale, rust, grout, mortar and other foreign substances immediately before the
concrete is placed. Where there is delay in depositing concrete, reinforcement
shall be re-inspected and, if necessary, re-cleaned.
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3.7 EMBEDMENT OF DRILLED, REINFORCING-STEEL DOWELS
A. Hole Preparation:
1. The hole diameter shall be as recommended by the epoxy manufacturer
but shall be no larger than '/4" greater than the diameter of the outer
surface of the reinforcing bar deformations.
2. The depth of the hole shall be as recommended by the epoxy
manufacturer to fully develop the bar but shall not be less than 12 bar
diameters, unless noted otherwise.
3. The hole shall be drilled by methods that do not interfere with the proper
bonding of epoxy.
4. Existing reinforcing steel in the vicinity of proposed holes shall be located
prior to drilling. The location of holes to be drilled shall be adjusted to
avoid drilling through or nicking any exis in rcing bars.
5. The hole shall be blown clean with cle d ressed air to remove all
dust and loose particles.
B. Epoxy shall be injected into the hole throug a plac the bottom of
the hole. The tube shall be withdrawn xy i ced but kept immersed
to prevent formation of air pockets. ho all b ed to a depth that
ensures that excess material will b xp the hole during dowel
placement.
C. Dowels shall be co wit xy an during insertion into the
partially filled hole so o g tee ful etting of the bar surface with
epoxy. The bar shall rte ly enough to avoid developing air
pockets.
- EN SECTION -
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Section 03 30 00 - Cast-In-Place Concrete
Part 1 - General
1.1 THE REQUIREMENT
The Contractor shall furnish materials, form, mix, place, cure, repair, finish and do all
other work required to produce finished concrete in accordance with the provisions
of this section.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 03 20 00 - Concrete Reinforcing
1.3 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. Commercial Standards:
ACI 301 Specifications for Structur Concrete for Buildings
ACI 347 Guide to Formwork fo
ASTM C 33 Specification for Con mates
ASTM C 94 Specification for Read d CON -+r
ASTM C 150 Specification for P d C int
ASTM C 260 Specification f it-E ing 7Wixtures for Concrete
ASTM C 309 Specificati f i ME -ane-Forming Compounds for
Curing rete
ASTM C 494 cifi for C al Admixtures for Concrete
ASTM C 618 ' atio Coal Fly Ash and Raw or Calcined Natural
ozz for in Concrete
1.4 CONTRACTO UBMIT
A. When the Contra es to use a mix design not listed in the Approved
Materials List, the pr ed mix design including the proportions and
gradations of all materials proposed shall be submitted to Central San and
shall receive favorable review prior to use. Mix designs shall be tested by an
independent testing laboratory for properties specified in this section, and the
results shall be submitted with the proposed concrete mix designs.
B. Where ready-mix concrete is used, the Contractor shall furnish certified
delivery tickets at the time of delivery of each load of concrete. Each ticket
shall show the state certified equipment used for measuring, and the total
quantities, by weight, of cement, sand, each class of aggregate, admixtures,
and the amounts of water in the aggregate, added at the batching plant, and
the amount allowed to be added at the site for the specific design mix. In
addition, each certificate shall state the mix number, total yield in cubic yards,
and the time of day, to the nearest minute, corresponding to the time when
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the batch was dispatched, when it left the plant, when it arrived at the job,
when unloading began, and when unloading was finished.
C. When a water-reducing admixture is proposed, the Contractor shall furnish
mix designs for concrete both with and without the admixture.
Part 2 - Products
2.1 CONCRETE REINFORCING
Concrete Reinforcing shall satisfy the requirements specified in Section 03 20 00 -
Concrete Reinforcing.
2.2 CONCRETE MATERIALS
A. See Approved Materials List, or approved equal.
B. Materials shall be delivered, stored, and handled to prevent damage by water
or breakage. Only one brand of cement sha b s
C. All materials furnished for the work shall pl he requirements of
Sections 201, 203, and 204 of ACI 301, a ab
D. Materials for concrete shall conform to the req nts:
1. Cement shall be standard brand cem onforming to ASTM C
150 for Type II or Type V.
2. Clean potable or recycled#e e om tionable quantities of silty
organic matter, ali, s nd oth m ies shall be used.
3. Aggregates shall tai rom pi cceptable to Central San, shall be
non-reactive, an onfo o ASTM C 33. Lightweight sand for fine
aggregate shal t be itte
4. Ready-mix con to shall rm to the requirements of ASTM C 94.
5. Air-entraining age eet the requirements of ASTM C 260.
6. Fly Ash shall meet the requirements of ASTM C 168.
7. Admixtures may be added at the Contractor's option to control the set,
effect water reduction, and increase workability. The use of an admixture
shall be subject to acceptance by Central San. Concrete shall not contain
more than one water reducing admixture. Water reducing admixture shall
conform to ASTM C 494, Type A or Type D.
8. Calcium chloride shall not be used in concrete.
2.3 CURING MATERIALS
Materials for curing concrete shall conform to ASTM C 309 and be on the Approved
Materials List. Curing compounds shall be white pigmented and resin based. Sodium
silicate compounds shall not be used.
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2.4 CONCRETE DESIGN REQUIREMENTS
A. General
1. Concrete shall be composed of cement, admixtures, aggregates and
water. These materials shall be of the qualities specified. The mix shall be
designed to produce a concrete capable of being deposited to obtain
maximum density and minimum shrinkage and where deposited in forms
to have good consolidation properties and maximum smoothness of
surface.
2. The Contractor is cautioned that the limiting parameters specified below
are NOT a mix design. Additional cement or water reducing agent may be
required to achieve workability demanded by the Contractor's construction
methods.
B. Concrete shall meet the requirements in th ollowing tabulation:
Minimum 28-Day Compressive In t i) 4,000
Maximum Size Aggregate inch 1
Minimum Cement per cu yd sack 0
Slump Range ' to 4"
Maximum W/C Ratio (by we' 0.45
*Note: One sack of cement als
2.5 MEASUREMENT OF CEM GG ATE
The amount of cement d of separ si f aggregate entering into each
batch of concrete shall eter d by d eighing equipment acceptable to
Central San.
2.6 MEASUREME OF R
The quantity of water ering th er shall be measured by a suitable water
meter or other measuri Vic ceptable to Central San and capable of
measuring the water in va mounts within a tolerance of 1%.
2.7 READY-MIXED CONCRETE
A. Ready-mixed concrete shall be delivered to the site of the work, and
discharge shall be completed within one hour after the addition of the cement
to the aggregates or before the drum has been 250 revolutions, whichever
occurs first. In hot weather, or under conditions contributing to quick stiffening
of the concrete, or when the temperature of the concrete is 85°F or above, the
time between the introduction of the cement to the aggregates and discharge
shall not exceed 45 minutes.
B. Truck mixers shall be equipped with electrically-actuated counters by which
the number of revolutions of the drum or blades may be readily verified. The
counter shall be of the resettable, recording type, and shall be mounted in the
driver's cab. The counters shall be actuated at the time of starting mixers at
mixing speeds.
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C. Each batch of concrete shall be mixed in a truck mixer for not less than 70
revolutions of the drum or blades at the rate of rotation designated by the
manufacturer of equipment. Additional mixing, if any, shall be at the speed
designated by the manufacturer of the equipment as agitating speed. All
materials including mixing water shall be in the mixer drum before actuating
the revolution counter for determining the number of revolutions of mixing.
D. Each batch of ready-mixed concrete delivered at the jobsite shall be
accompanied by a certified delivery ticket furnished to Central San's
Inspector.
E. The use of non-agitating equipment for transporting ready-mixed concrete will
not be permitted only if the pour can be made with continuous placement and
within 30 minutes of batching at the plant.
Part 3 - Execution
3.1 GENERAL
Work shall meet or exceed the requirements of a ations unless
applicable requirements of an agency having juris n (in g he terms and
conditions of an encroachment permit issued by coun greater, in
which case the greater requirements shall go
3.2 FORMWORK REQUIREMENTS
A. Forms to confine the concrete d a to quired lines shall be used
wherever necessary. The C ctor s I as e full responsibility for the
adequate design o or d any at are unsafe or inadequate in
any respect shall pro be oved from the jobsite and replaced. The
design and inspecti cre ms, false work, and shoring shall comply
with applicable loc state fed regulations. All design, construction,
maintenance, pre ation, a oval of forms shall be in accordance with
ACI 347 and the re ' ement ecified herein.
B. All vertical surfaces of a members shall be formed, except where
placement of the concrete against the ground is called for on the Plans.
C. Forms may be reused only if in good condition and acceptable to Central San
3.3 REINFORCEMENT REQUIREMENTS
A. All Concrete Reinforcing and appurtenances shall be fabricated and placed in
accordance with Section 03 20 00 - Concrete Reinforcing.
B. Reinforcement shall not be straightened or re-bent. Bars with kinks or bends
not shown shall not be used. All bars shall be bent cold.
C. Concrete Reinforcing shall be accurately positioned as shown and shall be
supported and wired together to prevent displacement, using annealed iron
wire ties or suitable clips at intersections. Where concrete is to be placed on
the ground, supporting concrete blocks (or dobies) shall be used, in sufficient
numbers to support the bars without settlement, but in no case shall such
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support be continuous. All concrete blocks used to support Concrete
Reinforcing shall be tied to the steel with wire ties that are embedded in the
blocks.
D. Tie wires shall be bent away from the forms in order to provide the specified
concrete coverage.
E. Concrete Reinforcing shall at all times be protected from conditions conducive
to corrosion until concrete is placed around it.
3.4 PROPORTIONING AND MIXING
A. Proportioning of the concrete mix shall conform to the requirements of
Chapter 3 of ACI 301.
B. Mixing of concrete shall conform to the requirements of Chapter 7 of ACI 301.
C. Re-tempering of concrete that has partially rdened shall not be permitted.
3.5 PREPARATION OF SURFACES FO N ING
A. Earth surfaces shall be thoroughly wet spri , prior to the placing of
any concrete, and these surfaces shall t moi quent sprinkling up
to the time of placing concrete there The ce s be free from
standing water, mud, and debris e o 'ng concrete.
B. All water entering the space to fill ncrete shall be cut off or
diverted prior to placemen c cr . No Crete shall be deposited
underwater nor all the tracto low II water to rise on any concrete
until the concre at d its in i Water shall not be permitted to
flow over the surfa an crete in such manner and at such velocity as
will injure the s h o concrete.
3.6 HANDLING, T NSPO AND PLACING
A. Placing of conc hall orm to the applicable requirements of Chapter 8
of ACI 301 and th ments of this Section. No aluminum materials shall
be used in conveying any concrete.
B. Concrete shall be conveyed from the mixer to place of deposit by methods
that prevent separation or loss of material.
C. No concrete shall be placed when the ambient temperature exceeds 105°F.
3.7 CONSOLIDATION
As concrete is placed in the forms or in excavations, it shall be thoroughly settled,
tamped and compacted, throughout the entire depth, into a dense, homogeneous
mass, filling all corners and angles, thoroughly embedding the reinforcement,
eliminating rock pockets, and bringing only a slight excess of water to the exposed
surface of concrete during placement using mechanical vibrators. Vibrators shall be
high speed power vibrators (8,000 to 10,000 rpm).
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3.8 FINISHING CONCRETE SURFACES
A. Finished surfaces shall be free from fins, bulges, ridges, offsets,
honeycombing, or roughness of any kind, and shall present a finished,
smooth, continuous hard surface, and shall be plumb, level or conform to the
profiles and dimensions shown on the Plans.
B. No treatment is required after form removal except for curing, repair of
defective concrete, and treatment of surface defects.
C. Surface holes larger than 2" in diameter or deeper than 3" are defined as
surface defects in basins and exposed walls.
3.9 CURING
A. All concrete shall be cured for no less than 7 days after placing, in
accordance with the methods indicated below:
Surface to be Cured Method
Unstripped forms 1
Encasement concrete, thrust blocks, ma ase d 2
top blocks
All other concrete surfaces 3
B. Method 1: Outside of wooden form ha immediately after
concrete has been placed an al a pt w ith water until removal. If
steel forms are use e e d con aces shall be kept
continuously wet un fo re rem . If forms are removed within 7
days of placing the co e, c shall be continued in accordance with
Method 3.
C. Method 2: The su e shall vered with moist earth for no less than 4
hours or more than ours r the concrete is placed. Earthwork
operations that may e concrete shall not begin until at least 7 days
after placement of concrete. Stacking of manhole components on cast-in-
place bases shall not commence until the next working business day after the
base has been placed.
D. Method 3: The surface shall be sprayed with a liquid curing compound
applied in accordance with the manufacturer's printed instructions. Curing
compound shall be applied as soon as the concrete has hardened enough to
prevent marring on unformed surfaces and within one hour after removal of
forms. Repairs to formed surfaces shall be made within the one-hour period.
3.10 TREATMENT OF SURFACE DEFECTS
All repairs shall be built up and shaped in such a manner that the completed work
will conform to the requirements of this section, using approved methods which will
not disturb the bond, cause sagging or cause horizontal fractures. Surfaces of said
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repairs shall receive the same kind and amount of curing treatment as required for
the concrete in the repaired section.
3.11 CARE AND REPAIR OF CONCRETE
The Contractor shall protect all concrete against injury or damage from excessive
heat, lack of moisture, overstress or any other cause until Acceptance of Proposed
Public Facilities by Central San. Care shall be taken to prevent the drying of
concrete and to avoid roughening or otherwise damaging the surface. Any concrete
found to be damaged, or which may have been originally defective, or which
becomes defective at any time prior to the Acceptance of Proposed Public Facilities,
or which departs from the established line or grade, or which, for any other reason,
does not conform to the requirements of the Plans, shall be satisfactorily removed
and replaced with acceptable concrete.
- END OF SECTION -
Part VI. Technical Specifications 93
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Section 03 34 13 - Controlled Low-Strength Material (CLSM)
Part 1 - General
1.1 THE REQUIREMENTS
The Contractor shall furnish all materials for Controlled Low Strength Material
(CLSM) in accordance with the provisions of this Section.
1.2 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. Commercial Standards:
ASTM C 33 Specification for Concrete Aggregates
ASTM C 39 Standard Test Method for Compressive Strength of
Cylindrical Concrete Specimens
ASTM C94 Specifications for Ready-mixe Concrete
ASTM C 150 Specification for PortlanId ASTM C 260 Specification for Air-Entures for Concrete
ASTM C 494 Specification for Chemiixture �ncrete
ASTM C 618 Specification for Coalh aw or Calcined Natural
Pozzolan for Use I Fi Portland Cement
Concrete
1.3 CONTRACTOR SUBMITTAL
When the Contractor pro s to mix t listed in the Approved
Materials List, the propose des cludin e proportions and gradations of
all materials proposed shal mitt Central San and shall receive favorable
review prior to use. Mix d gns be d by an independent testing laboratory
for properties specified i is Secti nd the results shall be submitted with the
proposed CLSM mix desi(, 'kh,
1.4 QUALITYASSURANC,
Central San Inspectors may take samples of CLSM from time to time to ensure
compliance with the requirements of this Section.
Part 2 - Products
2.1 MATERIALS
A. See Approved Materials List, or approved equal.
B. CLSM shall be a mixture of cement (one sack per cubic yard minimum; two
sacks per cubic yard maximum), pozzolan, fly ash, coarse and fine
aggregate, admixtures, and water batched by a ready mix concrete plant and
delivered to the work by means of standard transit mixing trucks. The mixture
shall produce a material which may be excavated by hand. The minimum 28-
day compressive strength shall be 50 psi and the maximum 28-day
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compressive strength shall be no greater than 150 psi in accordance with
ASTM C 39.
C. Cement shall be Type II in accordance with the requirements of ASTM C 150.
D. Pozzolan and/or fly ash may be added to improve the flowability and shall be
Type F in accordance with the requirements of ASTM C 618.
E. Coarse aggregate shall consist of a well-graded mixture of crushed rock, or
sand with a maximum size aggregate of 3/8". 100% shall pass the 1/2" sieve.
Not more than 30% shall be retained by the 3/8" sieve and not more than
12% shall pass the number 200 sieve. All material shall be free from organic
matter and meet the requirements of ASTM C 33.
F. Clean potable or recycled water free from objectionable quantities of silty
organic matter, alkali salts and other impurities shall be used.
2.2 ADMIXTURES
A. An air entraining admixture may be a d t ve the workability and shall
be in accordance with the requirement T 60. The entrained air
content shall be a minimum of 8% and 'mum as required by the
Contractor to meet the uses specifie erei
B. A water reducing agent may be ed cordG ;e with the requirements of
ASTM C 494 to improve worka ty.
Part 3 - Execution ,
3.1 GENERAL
Work shall meet or exce req ents of these Specifications unless
applicable requireme a ncy ing jurisdiction (including the terms and
conditions of an encr hment it issued by a city or county) are greater, in
which case the greate quirem shall govern.
3.2 PREPARING FO MENT
The subgrade and compacted fill and/or trench to receive CLSM shall be
appropriately bedded, backfilled and compacted.
3.3 MIXING AND DELIVERING
CLSM shall be batched by a ready-mix batching plant acceptable to Central San.
3.4 PLACEMENT
A. Use of CLSM in the pipe zone may cause flotation or displacement of the pipe
during installation of the CLSM. The Contractor shall take necessary
precautions to prevent flotation and ensure that the pipe is installed according
to the alignment and grade shown on the Plans.
B. CLSM shall be placed by means of tailgate discharge, conveyor belts,
concrete pumps, or other means acceptable to Central San.
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C. A vibrator may be used to ensure that all voids, crevices, and pockets are
filled with CLSM. Care shall be taken to avoid over-consolidation of the
material separating the large and fine aggregate.
D. Where new CLSM shall be placed against existing CLSM, the placement shall
be clean of all loose and foreign material. The surface of existing CLSM shall
be soaked a minimum of one hour before placement of fresh CLSM. No
standing water will be allowed before starting placement of fresh CLSM.
E. When placing CLSM for trench dams, the Contractor shall ensure that no
voids exist around the pipe barrel and that the CLSM completely fills the
trench width, including keyways, for the full depth required, as shown.
F. When using CLSM as abandonment grout, the Contractor shall contain CLSM
in sewer pipelines and structures to be abandoned using bulkheads.
3.5 FINISHING CLSM
The finished surface of CLSM shall be smooth a o t ade shown on the Plans
or as directed by Central San.
3.6 PROTECTION
CLSM shall be protected from running water free or other conditions that
could damage the material until cure is co e.
3.7 TRENCH BACKFILL
No equipment, traffic, or b kfilI s e allo on CLSM until the surface of
the CLSM is able to withs a 2 load w isplacement or damage. If
necessary, the Contractors rove eel trench plates that span the trench until
the CLSM has reached th str
- E F SECTION -
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Section 03 40 00 - Precast Concrete
Part 1 - General
1.1 THE REQUIREMENT
The Contractor shall furnish and install precast boxes and vaults as shown on the
Plans, including appurtenances necessary for a complete installation.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 03 30 00 - Cast-In-Place Concrete
B. Section 03 60 00 - Grout
1.3 CONTRACTOR SUBMITTALS
The Contractor shall submit shop drawings for all precast concrete items not
included in the Approved Materials List. Submitted drawings shall show all
dimensions, location and type of embedded it s, inserts, and details of
reinforcement and joints.
1.4 QUALITY ASSURANCE
A. Tests on component materials and for c m sive s th of concrete will
be performed as specified herein.
B. Test methods and criteria for a ati acce ance of concrete shall be
as specified in Section 03 3 0 C In- Concrete.
Part 2 - Products
2.1 MANUFACTUR M
A. Precast items s liste the Approved Materials List or approved
equal.
B. Concrete used anufa ed vaults shall have a minimum 28-day
compressive stre 00 psi.
C. Precast items to be installed in areas subject to vehicular traffic shall be
designed for H-20 loads.
2.2 PREFORMED JOINT SEALANT
Preformed joint sealant shall be as listed in the Approved Materials List or approved
equal.
2.3 NON-SHRINK GROUT
Non-shrink grout shall be as specified in Section 03 60 00 - Grout.
Part 3 - Execution
3.1 GENERAL
Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency having jurisdiction (including the terms and
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conditions of an encroachment permit issued by a city or county) are greater, in
which case the greater requirements shall govern.
3.2 INSTALLATION
A. All precast items shall be installed in accordance with the manufacturer's
recommendations. All joints shall be sealed by the use of preformed sealant
or joint tape so as to be watertight. All precast boxes and vaults shall be set
on a minimum foundation of 6" of Type I Bedding and Backfill Material
compacted to 95% relative compaction.
B. Connections to precast items shall be made by one of the following:
1. Casting sections of pipe into the item.
2. Core drilling or casting pipe chases into the items. Where core drilled
holes or cast-in pipe chases are used; theannular space between the
core-drilled hole or chase and the conne ti i shall be filled with non-
shrink grout or sealed using an appro res connector, skirt or
reducing coupling, unless otherwise s f. Plans. All such
connections shall be watertight.
- END OF SEC ON -
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Section 03 60 00 - Grout
Part 1 - General
1.1 THE REQUIREMENT
A. The Contractor shall furnish grout and shall form, mix, place, cure, repair,
finish and do all other work as required to produce finished grout in
accordance with the provisions of this Section.
B. The following types of grout are covered in this Section:
1. Non-Shrink Grout: shall be used wherever grout is shown on the Plans or
required by these Specifications, unless another type is specifically
referenced.
2. Epoxy Grout
3. Grout for Topping and Concrete Fill
4. Abandonment Grout
1.2 RELATED WORK SPECIFIED ELSE
A. Section 03 30 00 - Cast-In-Place Concrete
B. Section 03 34 13 - Controlled L r Ma (CLSM)
1.3 REFERENCE SPECIFICAT C E STANDARDS
A. Commercial Sta dards:
ASTM C 109 Me for Co ssive Strength of Hydraulic Cement
(U -in or 50-mm Cube Specimens)
ASTM C 579 est ds Compressive Strength of
hemica istant Mortars, Grouts, Monolithic Surfacing,
P01y r Concretes
ASTM C 827 St Test Method for Change in Height at Early Ages of
Cylindrical Specimens of Cementitious Mixtures
ASTM C1107 Standard Specification for Packaged dry, Hydraulic Cement
Grout (Non-shrink)
1.4 CONTRACTOR SUBMITTALS
Upon request by Central San, the Contractor shall submit certified test results
verifying that grout meets the compressive strength, shrinkage, and expansion
requirements specified herein; and manufacturer's literature containing instructions
and recommendations on the mixing, handling, placement and appropriate uses for
each type of grout used in the work.
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1.5 QUALITY ASSURANCE
A. Field Tests: Compression test specimens may be taken by the Inspector at
any time during construction to ensure continued compliance with these
Specifications. The specimens will be made by the Inspector.
1. Compression tests and fabrication of specimens for non-shrink grout will
be performed as specified in ASTM C 109.
2. Compression tests and fabrication of specimens for epoxy grout will be
performed as specified in ASTM C 579, Method B.
Part 2 - Products
2.1 CEMENT GROUT
A. Cement grout shall be composed of 1-part cement, 3 parts sand, and the
minimum amount of water necessary to obtain ILe desired consistency.
Where needed to match the color of adjac % , white Portland
cement shall be blended with regular Ice
as ed. The minimum
required compressive strength at 28 days e psi.
B. Component materials for cement grout ma i hall b pecified in
Section 03 30 00 - Cast-In-Place Con
2.2 PREPACKAGED GROUTS
A. Non-Shrink Grout:
1. Non-shrink gro all rganic - liberating, nonmetallic,
cement-based g equ only th dition of water. Manufacturer's
instructions shall ted ach bag or other container in which the
materials are p g e s . is formulation for each class of non-
shrink grout sh be as r mended by the manufacturer for the
particular appli 'on.
2. Non-shrink grouts e a minimum 2) day compressive strength of
5,000 psi; shall have no shrinkage (0.0%) and a maximum of 4%
expansion in the plastic state when tested in accordance with ASTM C
827; and shall have no shrinkage (0.0%) and a maximum of 0.2%
expansion in the hardened state when tested in accordance with ASTM
C1 107.
3. Non-shrink grout shall be used for the repair of all holes and defects in
concrete members which are water bearing or in contact with soil or other
fill material, grouting under all equipment base plates, and at all locations
where grout is specified in the Plans; except for those applications where
epoxy grout, grout for topping and concrete fill, and abandonment grout is
specified herein.
B. Epoxy Grout:
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1. Epoxy grout shall be a pourable, non-shrink, 100% solids system. The
epoxy grout system shall have 3 components: resin, hardener, and
specially blended aggregate, all pre-measured and prepackaged. The
resin component shall not contain any non-reactive diluents. Resins
containing butyl glycidyl ether (BGE) or other highly volatile and
hazardous reactive diluents are not acceptable. Variation of component
ratios is not permitted unless specifically recommended by the
manufacturer. Manufacturer's instructions shall be printed on each
container in which the materials are packaged.
2. The chemical formulation of the epoxy grout shall be that recommended
by the manufacturer for the particular application.
3. The mixed epoxy grout system shall have a minimum working life of 45
minutes at 75°F.
4. The epoxy grout shall develop a co r v trength 5,000 psi in 24
hours and 10,000 psi in 7 days wh es accordance with ASTM C
579, Method B. There shall be no %) and a maximum 4%
expansion when tested in accordan th AS 7.
2.3 GROUT FOR TOPPING AND CON ETE
A. Grout for topping of slabs and b g urfa f tank, channel and basin
bottoms shall be composed of en gregate, coarse aggregate,
water, and admixtures pro i d d m as specified herein. All
component mate ials an cedur spe ed for concrete in Section 03 30
00 - Cast-In-Pla one shall a ept as noted otherwise herein.
B. Topping grout an ete all contain a minimum of 6 sacks (564
pounds) of ce pe is y ith a maximum water-cement ratio of
0.45.
C. Coarse aggrega all b raded as follows:
U.S. Standa ieve Size Percent by Weight Passing
1/2" 100
3/8" 90-100
No. 4 20-55
No. 8 5-30
No. 16 0-10
No. 30 0
D. Final mix design shall be as determined by trial mix design under supervision
of an approved testing laboratory.
E. Strength: Minimum compressive strength of topping grout and concrete fill at
the end of 28 days shall be 3,000 psi.
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2.4 ABANDONMENT GROUT
Refer to Section 03 34 13 - Controlled Low-Strength Material (CLSM) for
abandonment grout requirements.
2.5 CURING MATERIALS
C. Curing materials shall be as specified in Section 03 30 00 - Cast-In-Place
Concrete for cement grout and as recommended by the manufacturer of
prepackaged grouts.
2.6 CONSISTENCY
A. The consistency of grouts shall be that necessary to completely fill the space
to be grouted for the particular application. Dry pack consistency shall be
such that the grout is plastic and moldable but will not flow. Where dry pack is
called for on the Plans, it shall mean a grout of that consistency; the type of
grout to be used shall be as specified herein fo a articular application.
B. The slump of grout for topping and concr fill e adjusted to match
placement and finishing conditions but sh xc 4".
2.7 MEASUREMENT OF INGREDIENTS
A. Measurements for cement grout shall de a tely by volume using
containers. Shovel measurements not Ilow
B. Prepackaged grouts shall hav ' g i m ed by means
recommended by the manuf re r.
Part 3 - Execution
3.1 GENERAL
A. All surface prepar n, curi nd rotection of cement grout shall be as
specified in Sectio 3 3000 st-In-Place Concrete. The finish of the grout
surface shall match of t djacent concrete.
B. Base concrete shall have attained its design strength before grout is placed,
unless otherwise authorized by Central San.
C. Grout at the consistency necessary for the particular application shall be
placed in such a manner so as to completely fill the space to be grouted.
D. Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency having jurisdiction (including the terms
and conditions of an encroachment permit issued by a city or county) are
greater, in which case the greater requirements shall govern.
3.2 GROUTING PROCEDURES
A. Prepackaged Grouts:
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1. All mixing, surface preparation, handling, placing, consolidation, curing,
and other means of execution for prepackaged grouts shall be done
according to the instructions and recommendations of the manufacturer.
B. Grout for topping or concrete fill:
1. All finish work shall be completed prior to placement of topping or concrete
fill. The base slab shall be given a roughened textured surface by
sandblasting or hydro blasting, exposing the aggregates, to ensure
bonding to the base slab.
2. The minimum thickness of grout topping and concrete fill shall be 1".
Where the finished surface of concrete fill is to form an intersecting angle
of less than 45° with the concrete surface it is to be placed against, a key
shall be formed in the concrete surface at the intersection point. The key
shall be a minimum of 3" wide by 1" dee .
3. The base slab shall be thoroughly n wetted prior to placing
topping and fill. No topping concre ha ced until the slab is free
from standing pools or ponds of wa hin of Type II cement shall
be broomed into the surface of the t bef ing of fill
placement. The topping and fills II beacte rolling or tamping,
brought to established grade, ed.
4. Topping grout placed on slo g s s I proceed uniformly from the
bottom of the slab to th p, r full of the placement.
5. The surface II b ed with t edge to detect high and low
spots which s e i iately inated. When the topping and fill has
hardened su it s e steel troweled to a smooth surface free
from pinhol nd imp ctions. An approved type of mechanical
trowel may used a assist in this operation, but the last pass over
the surface I be by d-troweling. During finishing, no water, dry
cement or mi cement and sand shall be applied to the surface.
C. Abandonment Grout
1. Placing of Material
a) Batching, mixing, and placing may be started if the weather conditions
are favorable and when the air temperature is 34°F and rising. At the
time of placement, the abandonment grout shall have a temperature of
at least 40°F. Mixing and placing shall stop when the air temperature is
38°F or less and falling.
b) The Contractor shall contain abandonment grout in sewer pipelines
and structures to be abandoned using bulkheads.
c) The Contractor shall utilize an air gap or relief for proper flow.
- END OF SECTION -
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Section 05 50 00 - Miscellaneous Metal Work
Part 1 - General
1.1 THE REQUIREMENT
The Contractor shall provide miscellaneous metalwork and appurtenances,
complete, in accordance with the Plans and these Specifications.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 03 20 00 - Concrete Reinforcing
B. Part VI Standard Drawings
1.3 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. Commercial Standards:
ASTM A 36 Carbon Structural Steel
ASTM A 48 Specification for Gra n gs
ASTM A 123 Zinc (Hot-Dip Galvani oats on Iron and Steel
Products
ASTM A 153 Zinc Coating (Ho on Ir d Steel Hardware
ASTM A 307 Carbon Steel s a ds, 00 psi Tensile
ANSI/AWS D1.1 Structural I g de— I
AWS '\meri el in ci Standards
Part 2 - Products
2.1 GENERAL
A. See Approved Ma Is List, proved equal.
B. Standard: Structura Is s, plates, bars (excluding Concrete
Reinforcing covered in n 03 20 00 - Concrete Reinforcing) shall
conform to the requirements of ASTM A 36.
C. Corrosion Protection: Fabricated steel shall be coated in accordance with
Section 05 50 00 - Miscellaneous Metal Work or shall be hot dip galvanized
as indicated on the Plans.
D. Stainless Steel: Unless otherwise indicated, stainless steel metalwork and
bolts shall be of Type 316 stainless steel and shall not be galvanized.
2.2 BOLTS AND ANCHORS
A. Standard Service Bolts (Not Buried or Submerged): Bolts, anchor bolts and
cap screws shall be in accordance with the requirements of ASTM A 307
Grade A or B, or threaded parts of ASTM A 36.
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B. Length of Bolts: The length of all bolts shall be such that after joints are made
up, each bolt shall extend through the entire nut, but in no case more than '/2"
beyond the nut.
C. Adhesive Anchors: Unless otherwise indicated, all drilled, concrete or
masonry anchors shall be adhesive anchors. No substitutions will be
considered unless accompanied with ICBO report verifying strength and
material equivalency.
D. Epoxy adhesive anchors are required for drilled anchors where exposed to
weather, in submerged, wet, splash, overhead and corrosive conditions, and
for anchoring handrails, pumps, mechanical equipment and reinforcing bars.
Epoxy systems shall be per the Approved Materials List. Threaded rods shall
be Type 316 stainless steel. Holes are to be clean and dry prior to the
application of epoxy.
E. Unless otherwise shown, glass capsule, o t resin adhesive anchors will
be permitted in locations not specified ve shall be per the Approved
Materials List. Threaded rod shall be a el.
F. Expanding-Type Anchors: Expanding-t chors ted or permitted
shall be steel expansion type per the pro aten List. Lead caulking
anchors will not be permitted. Si a as n. Non-embedded buried
or submerged anchors shall be pe 3 inle steel.
G. Lubricant: Non-seize lubri s II app o the threads of all stainless-
steel bolts prior t instal
2.3 CASTINGS
A. Steel castings s n n s than 0.6% of manganese and not less
than 0.2% of si n.
B. All castings sh soun d free from shrinkage crack, blow holes and
other defects. All rnt sand shall be removed. Excessive porosity
and spongy surfaces constitute causes for rejection. Central San shall be
final judge as to whether the defects present are sufficient to cause rejection.
C. No welding or patching of defects in castings will be permitted unless
authorized by the Inspector. Any such welding or patching done without the
Inspector's consent shall be cause for rejection.
D. All castings shall be true to the form and dimensions shown on the Standard
Drawings. After inspection and prior to shipping, all machined surfaces shall
be coated with a blue rust inhibitive lacquer, or other material which can be
easily removed, unless otherwise specified.
E. Castings shall not be more than 7-1/2% overweight.
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2.4 CAST IRON FRAME AND COVERS
A. Castings for manhole frames and covers shall be non-rocking and shall
conform to the requirements of ASTM A 48, Class 30. Cast iron covers and
frames with a rubber O-ring shall be heavy traffic type with a minimum weight
and diameter as shown in the Standard Drawings. Frame and cover shall be
designed for H-20 traffic loading. Each item in a set of frames and covers
shall be supplied by the same Manufacturer.
B. Refer to DWG 19-08 for cover requirements. Covers for public sewer
manholes shall be marked "CCCSD." Covers for manholes in private sewer
systems shall be marked "Sanitary Sewer".
C. The cover and its seat in the frame shall be machined so that the cover will sit
evenly and firmly in the frame. Cast iron frames and covers shall be dipped or
painted with asphalt.
2.5 FILLETS
A. Steel, gray iron, malleable iron and bronzkN
II be provided with
continuous fillets in all inside angles. Thef c pre of the exposed
surface of a fillet shall define the size of t
B. The size of fillets shall not be less th alf the thickness of the
thinnest adjoined member nor less n
2.6 MATCH MARKING
Connecting parts assembl in th p for t se of alignment in the field
shall be match marked.
Part 3 - Execution
3.1 GENERAL
Work shall meet or excee requi ents of these Specifications unless
applicable requirements of having jurisdiction (including the terms and
conditions of an encroachment permit issued by a city or county) are greater, in
which case the greater requirements shall govern.
3.2 FABRICATION AND INSTALLATION REQUIREMENTS
Except as otherwise indicated, the fabrication and erection of structural steel shall
conform to the requirements of the American Institute of Steel Construction "Manual
of Steel Construction," current edition.
3.3 WELDING
A. All welding shall be by the metal-arc method or gas-shielded arc method as
described in the American Welding Society's (AWS) "Welding Handbook" as
supplemented by other pertinent standards of the AWS. Qualification of
welders shall be in accordance with the AWS Standards.
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B. In assembly and during welding, the component parts shall be adequately
clamped, supported and restrained to minimize distortion and for control of
dimensions. Welded reinforcement shall be as indicated by the AWS
Standards. Upon completion of welding, all weld splatter, flux, slag and burrs
left by attachments shall be removed. Welds shall be repaired to produce a
workmanlike appearance, with uniform weld contours and dimensions. All
sharp corners of material which are to be painted or coated shall be ground to
a minimum 1/32" chamfer.
C. Welding electrodes shall be uniformly and heavily coated (not washed) and
shall be of such nature that the coating will not chip or peel while being used
with the maximum amperage specified by the manufacturer.
3.4 GALVANIZING
All structural steel plates shapes, bars and fabricated assemblies to be galvanized
shall be thoroughly cleaned of rust and scale, a dIv ized in accordance with the
requirements of ASTM A 123. Bolts, anchor nd similar threaded
fasteners, after being properly cleaned, shall g d in accordance with the
requirements of ASTM A 153. Field repairs to nizin II a made using
approved coating according to the Approved s List.
3.5 DRILLED ANCHORS
Drilled anchors and reinforcing bars s be ' d in rict accordance with the
manufacturer's instructions. Hole a e gh with a brush on a power drill,
cleaned and dried. Expanding rs if mitt shall not be installed until the
concrete has reached eq 8-day ssive strength. Adhesive anchors
shall not be loaded until dhe has reac ed its indicated strength in
accordance with the m er's uctions.
3.6 CUTTING WI TORC
A. The use of a cu torch ermissible if the metal being cut is not carrying
stress during the
B. When cutting with a torch, cuts shall be true to line with a maximum deviation
of 1/8'. All burned edges shall be finished by grinding or chipping.
C. The use of the cutting torch will be permitted on ends that form compression
connections providing a minimum of of metal is left to be removed by
machining.
- END OF SECTION —
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Section 09 90 00 - Painting and Coating
Part 1 - General
1.1 THE REQUIREMENT
A. The Contractor shall apply protective coatings, complete and in place, where
indicated on the Plans, or as directed by the Inspector, in accordance with the
requirements of this Section.
B. The Contractor or its subcontractor who applies the protective coatings shall
possess a valid license from the California Contractor's State License Board
as required for performance of the painting and coating work.
1.2 CONTRACTOR SUBMITTALS
A. Upon request by Central San, the Contractor shall submit the following
information prior to commencement of protectiv coating work:
1. Coating Materials List: Showing the m a and the name of the
product. The list shall be submitted pr to time of submittal of
samples.
2. Upon request by Central San, Contractors rovi mples of all
paint, finishes, and other coating s on " by 11" sheet metal.
Each sheet shall be completely ted its a e surface with one
protective coating material, t p nd o
1.3 REFERENCE SPECIFICAT , CO S A STANDARDS
A. Commercial Standa The wing r ced surface preparation
Specifications of the S Stru s Painting Council shall form a part of this
specification:
SSPC SP I Des n
1 Solvent CleaningIN Rem of oil, grease, soil, salts, and other soluble
inants by cleaning with solvent, vapor, alkali,
emulsion or steam.
2 Hand Tool Cleaning Removal of loose rust, loose mill scale, loose paint and
other loose detrimental foreign matter, by hand
chipping, scraping, sanding and wire brushing.
3 Power Tool Cleaning Removal of loose rust, loose mill scale, loose paint and
other loose detrimental foreign matter, by power tool
chipping, descaling, sanding, wire brushing and
grinding.
5 White Metal Blast Removal of all visible rust, oil, grease, soil, dust, mill
Cleaning scale, paint, oxides, corrosion products and foreign
matter by blast cleaning.
6 Commercial Blast Removal of all visible oil, grease, soil, dust, mill scale,
Cleaning rust, paint, oxides, corrosion products, and other foreign
matter, except that staining shall be limited to no more
than 33% of each square inch of surface area.
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7 Brush-Off Blast Removal of all visible oil, grease, soil, dust, loose mill
Cleaning scale, loose rust and loose paint.
10 Near-White Blast Removal of all visible oil, grease, soil, dust, mill scale,
Cleaning rust, paint, oxides, corrosion products and other foreign
matter, except that staining shall be limited to no more
than 5% of each square inch of surface area.
13 Surface Preparation of Removal of all visible oil, grease, soil, dust, mill scale,
Concrete, Abrasive paint, oxides, corrosion products and foreign matter by
Blast Cleaning Method blast cleaning.
1.4 QUALITY ASSURANCE
A. The Contractor shall prepare surfaces and apply coatings in strict accordance
with the requirements and intent of the Specifications. All materials furnished
and all work accomplished shall be subject to inspection by Central San. The
Contractor shall provide access and allow f r adequate time to perform all
inspections.
B. Quality assurance procedures and pr ce e used to monitor all
phases of surface preparation, applica d in tion throughout the
duration of the project. Procedures or s not ally defined herein
may be used provided they meet rec nize acce able professional
standards and are approved by n.
Part 2 - Products
2.1 GENERAL
A. The Contractor us able c aterials as recommended by the
manufacturer. Ma s sh mply with Volatile Organic Compound (VOC)
limits applicable e.
B. Coating mated shall b le in containers clearly labeled to indicate the
designated na formula pecification number, batch number, color, date
of manufacture a manufacturer, all of which shall be plainly legible
at the time of use.
2.2 COATING SYSTEMS FOR EXPOSED STEEL PIPE
A. Zinc/Epoxy/Polyurethane System: The zinc primer shall be an aromatic
urethane that contains at least 83% of metallic zinc by weight in the dried film
and is recommended by the coating manufacturer as a primer for this system.
The intermediate coat shall be a high-build two-component epoxy with a
solids content of at least 69% by volume. Finish coats shall be a two-
component aliphatic acrylic or polyester polyurethane coating material that
provides superior color and gloss retention, resistance to chemical fumes and
severe weathering. Finish coat shall have a minimum solids content of 73%
by volume.
1. Prime coat (minimum dry film thickness = 3 mils): Tnemec Series 90-97
Tneme-Zinc, Amercoat 68HS, Carbozinc 859, or equal.
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2. Intermediate coat (minimum dry film thickness = 4 mils): Tnemec Series
N69 Polyamidoamine Epoxy, Amerlock 400, Carboguard 890 or equal.
3. Finish coats (one or more, minimum dry film thickness = 3 mils): Tnemec
Series 1075 Endurashield, Ameron Amershield, Carbothane 134 HG or
equal.
4. Total system minimum dry film thickness = 10 mils.
5. Intermediate coat shall be applied in excess of 4 mils minimum dry film
thickness or in more than one coat as necessary to completely cover the
organic zinc primer and prevent application bubbling of the polyurethane
finish coat.
6. More than one finish coat shall be applied as necessary to produce a
finish with uniform color and texture. If the organic zinc primer is used as a
pre-construction or shop applied primer, all maged and uncoated areas
shall be spot abrasive blasted and coa a struction using the
indicated material.
Part 3 - Execution
3.1 GENERAL
Work shall meet or exceed the requireme Spe tions unless
applicable requirements of an agency ha g jur' (inc uding the terms and
conditions of an encroachment perm' ' s cit ounty) are greater, in
which case the greater req ireme all go n.
3.2 STORAGE, MIXING T NG O TERIALS
A. Manufacturer's Rec do nless otherwise indicated, the coating
manufacturer's pri d ro en ns and instructions for thinning, mixing,
handling, applying d prote its coating materials, for preparation of
surfaces for coatin for er procedures relative to coating shall be
strictly observed.
B. All protective coating materials shall be used within the manufacturer's
recommended shelf life.
C. Storage and Mixing: Coating materials shall be stored under the conditions
recommended by the Material Safety Data Sheets, and shall be thoroughly
stirred, strained, and kept at a uniform consistency during application.
Coatings of different manufacturers shall not be mixed together.
3.3 METAL SURFACE PREPARATION (UNGALVANIZED)
A. The minimum abrasive blasting surface preparation shall be as indicated in
the coating manufacturer's printed recommendations for the intended service.
B. Workmanship for metal surface preparation shall be in conformance with the
current SSPC Standards and this Section. Blast cleaned surfaces shall match
the standard samples available from the National Association of Corrosion
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Engineers (NACE), Standard TM-01-70 - Visual Standard for Surfaces of New
Steel Airblast Cleaned with Sand Abrasive and TM-01-75 - Visual Standard
for Surfaces of New Steel Centrifugally Blast Cleaned with Steel Grit.
C. All oil, grease, welding fluxes, and other surface contaminants shall be
removed by solvent cleaning per SSPC SP1 - Solvent Cleaning prior to blast
cleaning.
D. All sharp edges shall be rounded or chamfered and all burrs, surface defects
and weld splatter shall be ground smooth prior to blast cleaning.
E. The type and size of abrasive shall be selected to produce a surface profile
that meets the coating manufacturer's recommendation for the particular
coating and service conditions. Abrasives for submerged and severe service
coating systems shall be clean, hard, sharp cutting crushed slag. Automated
blasting systems shall not be used for surfa es that will be in submerged
service. Metal shot or grit shall not be u d s aces that will be in
submerged service, even if subseque ra lasting is planned to be one
with hard, sharp cutting crushed slag.
F. The abrasive shall not be reused uriles toma ting system is
used for surfaces that will be in non- bme servic . or automated
blasting systems, cleanoil-free a shal aintained. The abrasive
mix shall include at least 50%
G. The Contractor shall comp it h pli federal, state and local air
pollution control gulati or bla lea g.
H. Compressed air bla aning all be supplied at adequate pressure
from well-mainta' pr s equipped with oil and moisture separators
that remove at st 9 the taminants.
I. Surfaces shall cleaned I dust and residual particles of the cleaning
operation by dry last aning, vacuuming, or another approved method
prior to painting.
J. Enclosed areas and other areas where dust settling is a problem shall be
vacuum cleaned and wiped with a tack cloth.
K. Damaged or defective coating shall be removed by the blast cleaning to meet
the clean surface requirements before recoating.
L. If the required abrasive blast cleaning will damage adjacent work, the area to
be cleaned is less than 100 square feet, and the coated surface will not be
submerged in service, then SSPC SP2 or SSPC SP3 is to be used.
M. Shop applied coatings of unknown composition shall be completely removed
before the indicated coatings are applied. Valves, castings, ductile or cast-
iron pipe, and fabricated pipe or equipment shall be examined for the
presence of shop-applied temporary coatings. Temporary coatings shall be
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completely removed by solvent cleaning per SSPC SP1 before the abrasive
blast cleaning work has been started.
N. Shop primed equipment shall be solvent cleaned in the field before finish
coats are applied.
3.4 SURFACE PREPARATION FOR GALVANIZED FERROUS METAL
A. Unless noted otherwise, galvanized ferrous metal shall be alkaline cleaned
per SSPC SP1 to remove oil, grease, and other contaminants detrimental to
adhesion of the protective coating system to be used, followed by brush off
blast cleaning per SSPC SP7.
B. Pretreatment coatings of surfaces shall be in accordance with the printed
recommendations of the coating manufacturer.
3.5 SURFACE PREPARATION OF FERROUS SU FACES WITH EXISTING
COATINGS
A. General: All grease, oil, heavy chalk, dirt, oth taminants shall be
removed by solvent or detergent cleaning a ve blast cleaning. The
generic type of the existing coatings shall rmin oratory testing.
B. The Contractor shall provide the deg r lean dicated in the coating
system schedule for the entire surf o ate he degree of cleaning
is not indicated in the schedule, de for Ings shall be removed by
abrasive blast cleaning to SSP S so tly adhering coatings shall
be cleaned to SSPC SP7, a re in ickness of existing coating not
to exceed 3 mils.
C. If coatings to be appl' no patible with existing coatings, the
Contractor shall a in diat tings per the paint manufacturer's
recommendation f the indi coating system or shall completely remove
the existing coatin or to a ve blast cleaning. A small trial application
shall be conducted ility prior to painting large areas.
D. Coatings of unknown composition shall be completely removed prior to
application of new coatings.
E. Where indicated or where site conditions do not permit dry abrasive blasting
due to dust or air pollution considerations, water abrasive blasting or wet
abrasive blasting may be used. In both methods, paint-compatible corrosion
inhibitors shall be used, and coating application shall begin as soon as the
surfaces are dry. Water abrasive blasting shall be done using high pressure
water with sand injection. In both methods, the equipment used shall be
commercially produced equipment with a successful service record. Wet
blasting methods shall not be used for submerged and severe service coating
systems unless indicated.
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3.6 PREPARATION FOR COATING
A. All surfaces to receive protective coatings shall be cleaned as indicated prior
to application of coatings. The Contractor shall examine all surfaces to be
coated and shall correct all surface defects before application of any coating
material. All marred or abraded spots on shop-primed and on factory-finished
surfaces shall receive touch-up restoration prior to any coating application.
Surfaces to be coated shall be dry and free of visible dust.
B. Surfaces that are not to receive protective coatings shall be protected during
surface preparation, cleaning, and coating operations.
C. All hardware, lighting fixtures, switch plates, machined surfaces, couplings,
shafts, bearings, nameplates on machinery, and other surfaces not to be
painted shall be removed, masked or otherwise protected. Drop cloths shall
be provided to prevent coating materials from falling on or marring adjacent
surfaces. The working parts of all mecha i electrical equipment shall
be protected from damage during surf pr tion and coating operations.
Openings in motors shall be masked t e of coating or other
materials.
D. Care shall be exercised not to dama a adja work ing blast cleaning
operations. Spray painting shall b cte er carefully controlled
conditions. The Contractor shal full ons for and shall promptly
repair any and all damage to a ce o djoining property occurring
from blast cleaning or coa o er ns.
E. Cleaning and c sh coor so that dust and other
contaminants fro cle process will not fall on wet, newly coated
surfaces.
3.7 APPLICATIO F COA
A. Coating shall b e in rkmanlike manner so as to produce an even film
of uniform thickne , corners, crevices, and joints shall receive special
attention to insure thorough cleaning and adequate thickness of coating
material. The finished surfaces shall be free from runs, drops, ridges, waves,
laps, brush marks, and variations in color, texture, and finish. The finish coat
application shall be so complete that the addition of another coat would not
substantially change the color or texture of the finished work.
B. All damage to surfaces resulting from the work shall be cleaned, repaired,
and refinished to its original condition.
- END OF SECTION -
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Section 22 05 29 - Hangers and Supports for Piping
Part 1 - General
1.1 THE REQUIREMENT
The Contractor shall provide all tools, supplies, materials, equipment, and all labor
necessary for the furnishing, construction, and installation of all pipe supports,
hangers, guides, and anchors shown, specified, or required for a complete and
operable piping system.
1.2 REFERENCE SPECIFICATIONS, CODES, AND STANDARDS
Commercial Standards:
A. AISC Specifications for the Design Fabrication, and Erection of Structural
Steel for Buildings
B. ANSI/ASME B31.1 Power Piping
C. ASTM A123 Specification for Zinc (Hot- al ed) Coatings on Iron and
Steel Products
Part 2 — Products
2.1 GENERAL
A. Code Compliance: All piping syste and onn ions to equipment
shall be properly supported, to e t ue ction, vibration, and
stresses on piping, equipmen d str ures supports, and parts thereof,
shall conform to th quir is of A E B31.1, except as
supplemented or mo b e Spe tions. Supports for plumbing
piping shall be in ac c e w e latest edition of the applicable plumbing
code, or local adm' ra i qui nts.
1. All pipe suppo nd rest shall be designed to support their
respective pipe er th aximum combination of peak loading
conditions, includi eight, liquid weight, liquid movement, pressure
forces, thermal expansion and contraction, vibrations and all probable
externally applied forces, including but limited to seismic forces, wind
forces and forces applied during construction.
B. Structural Members: Wherever possible, pipes shall be attached to structural
members. All supplementary members shall be in accordance with the
requirements of the building code and the American Institute of Steel
Construction.
C. Support Spacing: Supports for piping with the longitudinal axis in
approximately a horizontal position shall be spaced to prevent excessive sag,
bending and shear stresses in the piping, with special consideration given
where components, such as flanges and valves, impose concentrated loads.
Where calculations are not made or more stringent requirements from pipe
manufacturers prevail, suggested maximum spacing of supports are given in
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the tables herein. Vertical supports shall be spaced to prevent the pipe from
being overstressed from the combination of all loading effects:
1. Support Spacing for Schedule 40 & 80 Steel Pipe:
Pipe Size (in) Max Span (ft)
1/2 6
3/4 & 1 8
1-1/4 to 2 10
3 12
4 14
6 17
8 & 10 19
12 & 14 23
16 & 18 25
20 & Above 30
2. Support Spacing for Welded Fabri d ipe:
Maximum Spans for Pipe Su in um
120-degree Contact S feet
Pipe Size Wall Thickness inches
(in) 3/16 '/4 5/16 3/8 1/ 5/8 3/4 7/8 1
24 33 37 41 4 4 7
26 34 38 41 4
28 34 38 41 44
30 34 4 45 49
32 34 3 914 Q LL44,2 5 50
34 35 3 48 50
36 35 41V 49 51 55
38 35 43 VW6 49 51 55
40 35 43 47 49 52 56
42 35 40 47 50 52 56
45 -- 40 44 47 50 53 57
48 -- 40 44 47 50 53 58 61
For steel pipe sizes not presented in this table, the support spacing shall be
designed so that the stress on the pipe does not exceed 5,000 psi. Maximum
deflection of pipe shall be limited to 1/360th of the span and shall be
calculated by using the formula:
L = (7500tD/(32t+D))1/2
where: t = Thickness (inches)
D = Diameter (inches)
L = Maximum span (feet)
3. Support Spacing for Ductile Iron Pipe:
Part VI. Technical Specifications
June 546 546 of 771 115
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Pipe Size in Suggested Max Span ft
All Sizes Supports per length or 10 feet
One of 2 supports located at joint
4. Support Spacing for Copper Tubing:
Nominal Pipe Maximum Span
Diameter (feet)
inches
1/2 to 1-1/2 6
2to4 10
6 and greater 12
D. Pipe Hangers: Pipe hangers shall be capable o supporting the pipe in all
conditions of operation. They shall allow fo a nsion and contraction of
the piping and shall prevent excessive str on ment. All hangers shall
have a means of vertical adjustment after ers shall be
designed so that they cannot become dise d by ement of the
supported pipe. Hangers subject to shock, ei distu es, or thrust
imposed by the actuation of safety v all i e hydraulic shock
suppressors. All hanger rods shall ubj ten loading, only.
E. Hangers Subject to Horizontal e . At er locations where lateral
or axial movement is anticip , suita lin e shall be provided to permit
such movement. ho tal pip ent is greater than 1/2", or
where the hanger ro ecti m the vertical is greater than 4° from the
cold to the hot posit' pi a hanger rod and structural attachment
shall be offset in s a m r th e rod is vertical in the hot position.
F. Spring-Type Hang Spring pipe hangers shall be provided for piping
subject to vibration is pansion and contraction, such as engine
exhausts and similar p . II spring-type hangers shall be sized to the
manufacturer's printed recommendations and the loading conditions
encountered. Variable spring supports shall be provided with means to limit
misalignment, buckling, eccentric loading, or to prevent overstressing of the
spring, and with means to indicate at all times the compression of the spring.
The support shall be designed for a maximum variation in supporting effort of
25% for the total travel resulting from thermal movement.
G. Thermal Expansion: Wherever expansion and contraction of piping is
expected, a sufficient number of expansion loops or joints shall be provided,
together with the necessary rolling or sliding supports, anchors, guides,
pivots, and restraints. They shall permit the piping to expand and contract
freely in directions away from the anchored points and shall be structurally
suitable to withstand all loads imposed.
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H. Heat Transmission: Supports, hangers, anchors, and guides shall be so
designed and insulated, that excessive heat will not be transmitted to the
structure or to other equipment
I. Riser Supports: Where practical, risers shall be supported on each floor with
riser clamps and lugs, independent of the connected horizontal piping.
J. Freestanding Piping: Free-standing pipe connections to equipment, like
chemical feeders, pumps, etc., shall be firmly attached to fabricated steel
frames made of angles, channels, or I-beams anchored to the structure.
Exterior, free-standing overhead piping shall be supported on fabricated pipe
stands, consisting of pipe columns anchored to concrete footings, with
horizontal, welded steel angles and U-bolts or clamps, securing the pipes.
K. Point Loads: Any meters, valves, heavy equipment, and other point loads on
PVC, fiber glass, and other plastic pipes, shall be supported on both sides,
according to manufacturer's recommen ti avoid undue pipe stresses
and failures. To avoid point loads, all o plastic and fiber glass
piping shall be equipped with extra wi i s or galvanized steel
shields.
L. Noise Reduction: To reduce transmi 'on o e in p ng systems, all
copper tubes in buildings and str hall apped with a 2-inch wide
strip of rubber fabric or similar, abl rial, each pipe support,
bracket, clip, or hanger.
2.2 MANUFACTUR SUP TS
A. Stock Parts: Whe t s cally s or detailed, designs, generally
accepted as exe g ngineering practice, using stock or
production part a tiliz herever possible. Such parts shall be
locally availabl new, of commercial quality, designed and rated for the
intended purpo
B. Manufacturers, or
1. Basic Engineers, Pittsburgh, PA;
2. Bergen-Paterson Corp., Boston, MA;
3. Elcen Metal Products Company, Franklin Park, IL;
4. Grinnell Corp., Cranston, RI;
5. NPS Industries, Inc., Secaucus, NJ.
2.3 COATING
A. Galvanizing: Unless otherwise indicated in the Project Documents, all
fabricated pipe supports, other than stainless steel or non-ferrous supports,
shall be blast-cleaned after fabrication and hot-dip galvanized in accordance
with ASTM A123.
Part VI. Technical Specifications
June 548 548 of 771 117
Page 142 of 297
B. Other than stainless steel or non-ferrous supports, all supports shall receive
protective coatings in accordance with the requirements of Section 09 90 00 -
Painting and Coating. Pipe supports shall be painted to match the piping
system.
Part 3 — Execution
3.1 INSTALLATION
A. General: All pipe supports, hangers, brackets, anchors, guides, and inserts
shall be fabricated and installed in accordance with the manufacturer's printed
instructions and ANSI/ASME B31.1. All concrete inserts for pipe hangers and
supports shall be coordinated with the formwork.
B. Appearance: Pipe supports and hangers shall be positioned in such a way as
to produce an orderly, neat piping system. All hanger rods shall be vertical,
without offsets. Hangers shall be adjusted to li up groups of pipes at the
proper grade for drainage and venting, as s 'lings or roofs as
possible, without interference with other
3.2 FABRICATION
A. Quality Control: Pipe hangers and supports sh fabri d and installed
by experienced welders and fitters, u bes ding procedures
available. Fabricated supports shat ne ppe ce without sharp
corners, burrs, and edges.
OF N -
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Section 31 05 19 - Geosynthetics for Earthwork
Part 1 - General
1.1 THE REQUIREMENT
The Contractor shall furnish and install geotextile in accordance with the provisions
of this Section.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 31 23 16 - Excavation, Bedding and Backfill
B. Section 32 12 16 - Asphalt Paving
1.3 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. Commercial Standards:
ASTM D 276 Test Methods for Identi 'cation of Fibers of Textiles
ASTM D 4354 Practice for Samp ' o ynthetics for Testing
ASTM D 4491 Standard Test M r Jer Permeability of
Geotextiles
ASTM D 4533 Standard Test Method Trape;,-uid Tearing Strength of
Geotextiles
ASTM D 4632 Test Meth or aki g Load and Elongation of
Geote '
ASTM D 4751 Te thod f et ining Apparent Opening Size of a
eo e
ASTM D 4833 dar t Methods for Index Puncture Resistance of
G mb s and Related Products
ASTM D 4873 Guid dentification, Storage and Handling of
Geo t etic Rolls and Samples
TxDOT 3099 extile Asphalt Retention
Part 2 — Products
2.1 GEO TEXTILE FOR WRAPPING FOUNDATION ROCK
A. Geotextile shall be as listed in the Approved Materials List.
B. Geotextile wrapped around the foundation rock material shall be a high
modulus woven fabric. The fabric shall be inert to commonly encountered
chemicals, rot-proof, and resistant to ultraviolet light exposures, insects, and
rodents. The fabric shall meet the following physical requirements:
ProPro ert Requirement Test Method
Grab/Elongation, Ibs/% 160 x 160 / 150 x 50 ASTM D 4632
Trapezoidal Tearing Strength, 60 x 60 ASTM D 4533
lbs.
Part VI. Technical Specifications
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Apparent Opening Size US Sieve <70 LASTM D 4751
Puncture, lbs. 95 ASTM D 4833
Permeability, Sec-1/gpm/ft. 1.4/110 ASTM D 4491
2.2 GEO TEXTILE FOR PAVING
A. Geotextile paving fabric shall be as listed in the Approved Materials List.
B. Geotextile for paving shall be a non-woven material consisting of at least 85%
by weight of polyolefin, polyesters, or polyamides. The fabric shall be
resistant to chemical attack, rot and mildew and shall have no tears or defects
that will adversely alter its physical properties. The fabric shall be specifically
designed for pavement application and be heat bonded on one side only to
assist in preventing bleed through of tack coat and sticking of fibers to wheels
of lay-down equipment. The fabric shall meet the following physical
requirements:
Property Requirem� c Test Method
Tensile Strength, lbs. 80 ASTM D 4632
Elongation, percent 50 rASTM D 4632
Asphalt Retention, gal/sq yd 0.2 + TxDOT 3099
Melting Point, degrees F 30 ASTM D 276
Surface Texture eat b ded one side Visual inspection
my
Note: All numerical v sh above represent minimum average roll
values. Test results sa d roll in a lot shall meet or exceed the
minimum values s n. Lo all sampled in accordance with ASTM D
4354.
2.3 TACK COAT
The tack coat used to bond the fabric to the base pavement shall be in accordance
with the requirements of Section 32 12 16 -Asphalt Paving, except that the use of
cutbacks or emulsions that contain solvents shall not be allowed.
Part 3 — Execution
3.1 GENERAL
A. Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency having jurisdiction (including the terms
and conditions of an encroachment permit issued by a city or county) are
greater, in which case the greater requirements shall govern.
B. Geotextile shall be provided in rolls wrapped with protective covering to
protect the fabric from mud, dirt, dust, debris, ultraviolet radiation, and
abrasion. The fabric shall be free of defects or flaws that significantly affect its
120 Part VI. Technical Specifications
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physical properties. Each roll of fabric in the shipment shall be labeled in
accordance with ASTM D 4873.
C. Geotextile shall be handled and placed in accordance with the manufacturer's
recommendations.
3.2 INSTALLATION OF GEOTEXTILE FOR FOUNDATION ROCK
A. Geotextile for foundation rock shall be installed as specified in the Plans and
Section 3123 16 - Excavation, Bedding and Backfill. The geotextile shall be
wrapped entirely around the rock with a minimum 12" overlap. Punctures in
the geotextile shall be covered with a 12" square minimum patch.
B. Geotextile and foundation rock shall be provided beneath manholes and
structures where water or soft ground is present.
3.3 PAVEMENT SURFACE PREPARATION
The pavement surface shall be cleaned to re e , water, and oil from base
pavement or aggregate base rock. Cracks '/4 ide ider shall be cleaned and
filled with suitable bituminous material or by d ved by Central San
and/or the local jurisdiction. Crack filling mater' II be to cure prior to
geotextile placement. Where pavement is severel ked, ed, deformed, or
otherwise distressed, a leveling course lac directed by Central San
and/or the local jurisdiction.
3.4 TACK COAT
A. Minimum air an ave temper II be 50°F or higher for placement
of asphalt and sI 1 6 r high e placement of asphalt emulsion.
B. The sealant ma be ad by means of a calibrated pressure
distributor truc he as t se nt shall be uniformly spray-applied to the
prepared dry p ment s at the rate of 0.20 to 0.30 gallons per square
yard or as reco nded a geotextile manufacturer and approved by
Central San. Whe mulsions, the application rate shall be increased
as directed by Central San to offset water content of the emulsion. Some
underlying surfaces may require a higher application rate. Within street
intersections, on steep grades, or in other zones where vehicle speed
changes are commonplace, the normal application rate shall be reduced
about 20% as directed by Central San but to no less than 0.20 gallons per
square yard.
C. For paving grade asphalt cements, the distributor tank temperature shall not
be less than 285°F nor exceed 325°F to avoid damage to the geotextile. For
asphalt emulsions, the distributor tank temperatures shall be maintained
between 130°F and 160°F.
D. The target width of sealant application shall be the width of the geotextile plus
6". The sealant shall be applied only as far as in advance of geotextile
installation as is appropriate to insure a tacky surface at the time of geotextile
placement. Geotextile shall be placed the same day as the sealant. Traffic
Part VI. Technical Specifications
June Page- Page 552 of 771 121
Page 146 of 297
shall not be allowed on the sealant. Excess asphalt shall be cleaned from the
road surface.
3.5 PLACEMENT OF GEOTEXTILE FOR PAVING
A. The geotextile shall be placed into the sealant using mechanical or manual
laydown equipment capable of providing a smooth installation with a minimum
amount of wrinkling or folding prior to the sealant cooling and losing
tackiness. When asphalt emulsions are used, the emulsion shall be allowed
to cure properly, essentially with no moisture remaining prior to placing the
geotextile and overlay. Wrinkles or folds in excess of 1" shall be slit and laid
flat. All transverse joints and slit folds or wrinkles shall be shingle-lapped in
the direction of the paving operation. Brooming and/or pneumatic rolling will
be required to maximize geotextile contact with pavement surface. Additional
hand-placed sealant material may be required at laps and repairs as
determined by Central San and/or the local juri diction.
B. All areas with geotextile placed shall be p me day. No traffic
except necessary construction equipmen d cy vehicles shall be
allowed to drive on the fabric. Turning of th era her vehicles shall be
done gradually and kept to a minimum to vemdamage to the
geotextile. Abrupt starts and stops sha o be ded. Damaged geotextile
shall be removed and replaced with type otextile, and the
overlaps shall be shingle-lapped in a di r of pa ing. Overlaps shall not
exceed 6".
3.6 PLACEMENT OF RL R TRE CH
A. All areas in which ge He h een placed shall be paved during the same
day. The temperatu hot hall not exceed 325°F. Sealant bleeding
through the geote sha em d. Excess sealant can be removed by
broadcasting hot or san he fabric. Excess sand or hot mix should be
removed before be ing th ving operation. In the event of rainfall on the
fabric prior to the pla the asphalt overlay, the geotextile shall be
allowed to dry completely efore asphalt is placed. This will prevent the
trapping of water (steam) under the hot asphalt that could induce cracking.
B. Asphalt concrete pavement shall be placed over the geotextile to a minimum
thickness of 2-1/2" or the thickness required by the local jurisdiction,
whichever is greater in accordance with the requirements specified in Section
32 12 16 -Asphalt Paving.
- END OF SECTION -
122 Part VI. Technical Specifications
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Section 31 23 16 - Excavation, Bedding and Backfill
Part 1 - General
1.1 THE REQUIREMENT
The Contractor shall provide all labor, materials, and equipment necessary to
perform all excavation, bedding, backfill and grading operations required for
construction of the work.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 03 34 13 - Controlled Low-Strength Material (CLSM)
B. Section 31 05 19 - Geosynthetics for Earthwork
C. Part VI Standard Drawings
1.3 REFERENCE SPECIFICATIONS, CODES ND STANDARDS
A. Commercial Standards:
ASTM D 1556 Test Method for n -)it Weight of Soil in Place
by Sand-Cone Me
ASTM D 1557 Test Methods bor Compaction Characteristics
of Soil Usin Effo 000 ft-Ibf/ft3 (2,700 kN-
m/m3))
ASTM D 2419 Stand T st tho Sand Equivalent Value of Soils
an e Aggr
ASTM D 2487t
ti Classification of Soils for Engineering
se ified Soil Classification System)
ASTM D 6938 ods for In-Place Density and Water Content of
Na oil-Aggregate by Nuclear Methods (Shallow
ASTM D 4253 Test Methods for Maximum Index Density and Unit
Weight of Soils Using a Vibratory Table
ASTM D 4254 Test Methods for Minimum Index Density and Unit
Weight of Soils and Calculation of Relative Density
1.4 CONTRACTOR SUBMITTALS
A. Compaction testing of bedding and backfill materials shall be required for all
main sewer extensions and laterals in public streets.
B. Compaction testing of bedding and backfill for side sewer work on private
property may be required at the discretion of the Inspector.
C. The required compaction testing shall be conducted under the direction of a
Civil or Geotechnical Engineer licensed by the State of California. As a
condition of Central San's Final Inspection, a Certification Report indicating
Part VI. Technical Specifications
554 of 771 123
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that compaction results meet or exceed the requirements of these
Specifications shall be submitted by the engineer in responsible charge of the
compaction testing with a cover letter bearing the engineer's professional
stamp.
D. Compaction testing shall be completed prior to the acceptance televising of
the sewer and installation of final paving.
1.5 QUALITY ASSURANCE
A. Where soil material is required to be compacted to a percentage of maximum
density, the maximum density at optimum moisture content will be determined
in accordance with ASTM D 1557. Where cohesionless, free draining soil
material is required to be compacted to a percentage of relative density, the
calculation of relative density will be determined in accordance with ASTM D
4253 and D 4254. Field density in-place tests will be performed in accordance
with ASTM D 1556, ASTM D 6938, or by su h er eans acceptable to
Central San. At a minimum, compaction t s conducted for each 50
feet of trench and for each 2 feet of trenc p s otherwise specified
by the agency with jurisdiction for the road
B. If a first test and a subsequent re-test of the be or ill show non-
compliance with the density required is S n, the Contractor shall
remove and re-compact the mated epr e d b test/retest as
necessary to ensure compliance.
C. The Contractor shall rovid ess in e e vation for the soil compaction
testing technician o ed his sh de providing site-specific safety
equipment and tempo sho to enable compaction testing at each
required level withi vats hould the Contractor have backfilled to
an elevation abov at re d to tested, he shall excavate the backfill
down to the neces level sting and provide shoring at his cost.
Subsequent backfi shall be at the Contractor's cost.
Part 2 — Products
2.1 SUITABLE BEDDING AND BACKFILL MATERIAL
A. Bedding and backfill material shall be selected or processed clean, free from
grass, roots, brush, other vegetation, debris, refuse or other deleterious
material of any kind.
B. The following types of bedding and backfill materials are designated and
defined as follows:
1. Type I Bedding and Backfill Material (Class 2 Aggregate Base): Shall be
newly quarried or recycled material (not mined alluvial material), and shall
be certified by the quarry or recycler as complying with the provisions of
Caltrans Specifications Section 26 (Class 2 Aggregate Base) for 3/4"
maximum grading.
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2. Type III Bedding and Backfill Material (native material from trench
excavation): Shall be free from vegetable matter, debris and refuse, shall
contain no concrete, stones or clods larger than 3" in any dimension and
shall contain sufficient fines so that all voids will be filled when compacted,
and shall be so constituted that compaction requirements can be met.
3. Select Type III Bedding and Backfill Material (native material from trench
excavation): Shall meet all requirements of the above described Type III
Bedding and Backfill Material with the additional requirement that the
maximum particle size shall be 3/4" in diameter.
4. Coarse Bedding Material (Drain Rock/Foundation Rock): Shall be crushed
stone or gravel (not mined alluvial material), with a minimum of 95%
crushed particles per CTM 205, durable and free from slaking or
decomposition under action of alternate wetting and drying with minimum
Durability Index of 40 per CTM 229. The aterial shall meet the following
gradation requirements:
Sieve Size Perce
2-inch 100
1-1/2-inch 90-100
3/4-inch 5-
3/8-inch
No. 200 2
C. Controlled Low Strength ri s con to the requirements of Section
03 34 13 - Cont r led L trengt to (CLSM).
2.2 UNSUITABLE MA L
A. Unsuitablema Is fo din d backfill shall include soils, which when
classified and STM D fall in the classifications of PT, OH, CH, MH,
or OL. In additi ny soi t cannot be sufficiently compacted to achieve
the percentage o density specified for the intended use shall be
considered unsuitab e.
B. Chemical testing for corrosivity shall be performed for all materials proposed
for use as bedding and backfill for metallic or reinforced concrete pipe. The
testing shall be in accordance with the requirements of CTM 417, CTM 422
and CTM 643. Bedding and backfill materials shall be considered unsuitable
when the chloride concentration exceeds 500 ppm, sulfate concentration
exceeds 1,500 ppm, resistivity is less than 2,000 ohm-cm or pH is less than
6.5. Testing shall be performed by a qualified laboratory approved by Central
San, and the data shall be submitted to the Inspector for acceptance prior to
use of the material in the work.
C. Type III materials which are too wet to be compacted to specified compaction
shall not be rejected solely because they are too wet for proper compaction.
The Contractor may at its option, dry these materials in accordance with
Paragraph 3.8.G of this section prior to compaction. Alternatively, the
Part VI. Technical Specifications
June 556 556 of 771 125
Page 150 of 297
Contractor may remove the Type III materials and provide imported backfill
material.
D. Backfill placed within 6" of any structure or pipe shall be free of rocks or
unbroken clods of earth larger than 3" in any dimension.
E. All material that is determined to be unsuitable for use as bedding and backfill
or that is in excess of the amount required shall be removed immediately and
disposed of properly by the Contractor.
2.3 USE OF SUITABLE BEDDING AND BACKFILL MATERIAL
Backfill types shall be used in accordance with the following provisions:
A. Pipe zone backfill (bedding, haunching and shading), as defined under
paragraph 3.6 Bedding and Backfill herein, shall be Type I Bedding and
Backfill Material (Class 2 Aggregate Base) unless otherwise specified on the
Plans.
B. Trench zone backfill, as defined under pa ra edding and Backfill
herein, for pipelines in public and privates an er paved areas shall
be Type I Bedding and Backfill Material (C ggre6 - .ase).
C. Trench zone backfill in future roadwa eet r -of-way or in off road
locations (e.g., easements) may be e dding id Backfill Material
(native trench soil) so long as spe d c n is achieved.
D. Final Backfill as defined unde ipe a Utili rench Backfill herein, for
pipelines in publicailt riv treets r paved areas shall be Type I
Bedding and Backfill ria ss 2 A egate Base).
E. Backfill around str Its, &valve boxes shall be Type I Bedding
and Backfill Mater' (Class gre ate Base).
F. Backfill used to rep struc and pipeline trench over-excavation of wet
or soft trench bottom shall be Coarse Bedding and Backfill Material
(Drain Rock/Foundation ock) with a geotextile envelope (minimum one-foot
overlap) around the rock to prevent migration of fines.
G. Controlled Low Strength Material may be used for pipe zone backfill and
trench zone backfill whenever pre-approved in writing by Central San or
shown on the Plans.
H. Trenches in landscaped or cultivated areas shall have the top 12" inches
backfilled with topsoil.
2.4 FILTER FABRIC
Filter fabric shall be as specified in Section 31 05 19 - Geosynthetics for Earthwork.
2.5 TRENCH DAMS, AND PIPE ANCHORS
Trench Dams and Pipe Anchors shall be provided at the locations shown on the
Plans and shall be constructed as shown in the Standard Drawings as follows:
126 Part VI. Technical Specifications
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Page 151 of 297
• DWG 20-05 Trench Dams
• DWG 21-03 Pipe Anchor Detail
Trench dams shall be of the length and width dimensions shown in the detail, shall
extend below finished grade as shown in the detail, and shall be constructed of
controlled low strength material (CLSM) as specified in Section 03 34 13 - Controlled
Low-Strength Material (CLSM).
Part 3 — Execution
3.1 GENERAL
A. Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency having jurisdiction (including the terms
and conditions of an encroachment permit issued by a city or county) are
greater, in which case the greater requirements shall govern.
B. Prior to any excavation and backfill wor t tractor shall obtain and
provide Central San with copies or of vi of acquisition thereof, all
required permits for the work, includin d to: County and/or City
encroachment permits, Central San per Cal cavation Permit,
and Competent Person certification.
C. Material to be used for backfill sh alo a of the trench and kept
trimmed so as to cause as little ' onv ea ossible to public travel and
the normal use of adjacent o ie o , stockpiled material shall be
kept a minimum of two fe m th dge a trench and the face of the
stockpile shall b lope neede ccess shall be provided to all fire
hydrants, water m and p e drives. Gutters or other drainage
ways shall be ke unl ther temporary provisions are made for
maintaining dr ' e.
D. In advance of ing sew a or structures, material within the area where
such pipe or s es ar o be placed, which in the opinion of the Inspector
is unsuitable inclu not limited to vegetable matter, garbage, and junk
piles, either on the surface or buried, shall be removed and disposed of.
E. Water to control dust resulting from grading operations, excavation, backfill,
and the passage of traffic through the work area shall be applied by means
that will ensure a uniform application of water with no runoff.
F. The Contractor shall remove and dispose of all excess excavated material at
a suitable preferred site(s). The Contractor shall obtain all necessary fill and
grading permits and a written release from property owners upon completion
of use of said sites.
3.2 STRUCTURE EXCAVATION
A. Except when specifically provided to the contrary, excavation shall include the
removal of all materials of whatever nature encountered, including all
obstructions of any nature that would interfere with the proper execution and
Part VI. Technical Specifications
June 558 558 of 771 127
Page 152 of 297
completion of the work. The removal of these materials shall conform to the
lines and grades shown on the Plans or as directed by the Inspector Unless
otherwise provided, the entire construction site shall be stripped of all
vegetation and debris, and such material shall be removed from the site prior
to performing any excavation or placing any fill. The Contractor shall furnish,
place, and maintain all supports and shoring that may be required for the
sides of the excavations, and all pumping, ditching, or other measures
required for the removal or exclusion of water, including storm water,
groundwater, and wastewater reaching the site of the work from any source
so as to provide dry working conditions and to prevent damage to the work or
adjoining property. Excavations shall be benched, sloped, shored or
otherwise supported in a safe manner in accordance with applicable State
safety requirements and the requirements of OSHA Safety and Health
Standards for Construction (29CFR1926).
B. Excavation under structures, manholes, vau is d "hers: Except where
otherwise specified for a particular struct r ed by the Inspector,
excavation shall be carried to the grade o e f the bedding. Where
shown on the Plans or directed by the Insp , are ne th structures
shall be over-excavated. The exposed su II be d to a depth of
6", brought to optimum moisture conte d co cted to 95% relative
compaction. Where over-excavatio d by nspector to provide for
the placement of foundation rock o r we t soi , scarification and re-
compaction shall not be perfor d
3.3 TRENCH EXCAVA N
A. Excavation for sewer II b de only a ter pipe and other necessary
materials are delive a si the work. After such delivery, trench
excavation shall pr eed a idl possible, and the pipe installed and the
trench backfilled out and lay. In public street areas, excavation and
pipe installation sh e coor ted to the end that a minimum of
interference with tra It.
B. Refer to table below for required trench widths according to nominal pipe size.
Pipe Size (in) Trench Width (in)
2-4 18
6-8 24
10-12 30
14-18 36
24 42
C. The pipe bedding shall be given a final trim, using a laser for establishing
grade, such that each pipe section when first laid will be continually in contact
with the bedding along the bottom of the pipe. The Contractor shall excavate
bell holes at pipe joints.
D. For trenching in existing streets, excavation and pipe installation shall be
coordinated so that no more than 100 linear feet of trench shall be open at
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any time. Backfilling operations shall closely follow pipe installation. In new
subdivisions more than 100 feet of trench may be opened if allowed by the
Inspector and if the excavation is properly shored, sloped or benched. All
trenches shall be fully backfilled at the end of each day or, properly shored
and covered by heavy steel plates adequately braced and capable of
supporting H-20 vehicle loads in those locations subject to traffic and with 1-
1/8" plywood in off road locations where it is impractical to backfill at the end
of each day. Use of steel traffic plates is subject to the prior approval of the
agency issuing the encroachment permit. Traffic plates shall be staked in
place, with adjacent plates tack-welded together, and shall be provided with
non-skid coating. Compacted cold mix asphalt shall be placed around the
plate perimeter to provide a smooth transition from adjacent pavement.
E. Where the bottom of the trench becomes soft or is unstable due to
groundwater and/or movement of construction equipment, the Contractor
shall over-excavate unsuitable material t ini um depth of 9" below the
base elevation to establish a stable fo ti the bedding or to a depth
as otherwise directed by the Inspecto a hall be placed on the over-
excavated trench bottom and staked to enc h s, oarse bedding
material in conformance with these spe ns sh laced on the
fabric, and the fabric shall then be ake the trench wall and
wrapped over the coarse beddin for closed envelope with a
minimum 1-foot overlap at the t ed e fa ric.
F. Any over-excavation carri I w gra rdered, specified, or shown,
shall be backfill and acted a uired grade with the specified
material.
3.4 EMBANKMENT TI
A. The relative co action e n ural ground area upon which embankments
are to be const ed, for th of not less than 2 feet below finished grade,
shall be not less 900 elative compaction.
B. If finished grade is less than 3 feet, above natural ground, the natural ground
shall be excavated to a depth of not less than 3 feet below finished grade and
re-compacted to a relative compaction of not less than 90%.
C. When embankments are to be made and compacted on hillsides, or where
new fill is to be compacted against existing embankments, the slopes of the
original hillside, old or new fill, shall be cut into a minimum of 6 feet
horizontally as the work is brought up in layers. Material thus cut out shall be
re-compacted along with the new fill. Fill shall be compacted to a relative
compaction of not less than 90%.
3.6 BEDDING AND BACKFILL
A. Except for required foundation material (in an envelope of geotextile) coarse
bedding material being placed in over-excavated areas, where water or soft
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June 560 560 of 771 129
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ground is present, backfill shall not be placed until after all water is removed
from the excavation.
B. Pipe zone bedding and backfill operations shall be performed in accordance
with the following requirements:
1. Type I Bedding and Backfill Material (Class 2 Aggregate Base) shall be
placed and properly compacted in the pipe zone. The pipe zone is defined
as that portion of the vertical trench cross-section lying between a plane 4
to 6" below the bottom surface of the pipe, i.e., the trench sub-grade, and
a plane at a point 12" above the top outside surface of the pipe. The sub-
zones of the pipe zone are defined as follows:
a) "Bedding is that portion of the Pipe Zone between the bottom of the
trench or the top of required foundation material and the lowest point
on the outside surface of the pipe barrel excepting bells;
b) "Haunching" is that portion of the P' tween the top of the
Bedding and the horizontal center) of e;
c) "Shading" is that portion of the Pipebetty t top of the
Haunching and a horizontal plane 1 a the st point on the
outside surface of the pipe bar ptin IIs.
2. Controlled Low Strength Materi CL II b rovided in lieu of Type
I Bedding and Backfill Mate ' I er dic n the Plans Contractor
shall provide a method to ent fro loating during backfill. (The
remaining portiof th nch sh ckfilled as specified elsewhere
in this Section.)
3. After compactin ing, Contractor shall perform a final trim
using a laser f stablis gra e, such that each pipe section when laid
will be continu in conta 'th the bedding along the bottom of the pipe.
The Contractor rov' bell holes at each pipe joint.
4. Backfill in trenches s be placed uniformly on each side of the pipe to
prevent displacement. The Contractor shall exercise care to prevent
damage to the pipeline coating, cathodic bonds, or the pipe itself during
the installation and backfill operations. The Contractor shall hand shovel
slice the bedding along the sides of the pipe in order to ensure filling any
voids under the pipe haunches.
C. Warning Tape: A colored detectable metallic foil core plastic tape, at least 3"
in width, shall be placed on top of the pipe zone backfill wherever sewers are
installed. The tape shall have printed on it the words "Caution: Sewer Buried
Below." The warning tape shall be utilized for all pipes (mains and laterals).
D. After the pipe zone backfill has been placed as specified above, and after all
excess water has completely drained from the trench, backfilling of the trench
zone may proceed. The trench zone is defined as that portion of the trench
excavation between the top of the shading and the ground surface in unpaved
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areas, and the horizontal plane at lowest point of the pavement structural
section in paved areas.
E. "Final Backfill" is that portion of the Trench Zone in paved areas between the
top of the trench backfill and the lowest point of the pavement structural
section.
F. Joint utility trench excavations shall conform to the requirements shown on
DWG 20-06.
3.7 PLACING AND SPREADING OF BACKFILL AND EMBANKMENT
MATERIALS
A. Backfill materials shall be placed and spread evenly in layers. The backfill
layers shall be evenly spread so that each layer shall not exceed 8" in un-
compacted thickness. Backfill layers greater than 8" but no more than 24"
may be used after the Contractor demonstriLes by compaction testing as
specified in 3.8 below, that required co tvels will be achieved.
B. During spreading, each layer shall be ' ed as necessary to
promote uniformity of material in each I Pipe b ckfill materials shall
be manually spread around the pipe so en co ed, the pipe zone
backfill will provide uniform bearin side ort.
C. Where the backfill material moi e c is b the optimum moisture
content, water shall beadde re du preading until the proper
moisture content is within ang ere a specified compaction can be
achieved.
D. Where the backfill nal ture content is too high to permit the specified
degree of comp ma I shall be bladed, aerated or dried and/or
mixed with dry ate til th moisture content is satisfactory.
E. Whenever sele is po e, embankment material having a sand
equivalent value 10 shall be deposited in the lower portions of
embankments and n ch material shall be placed within 3 feet of planned
finished grade.
F. When the embankment material consists of large rocky material, or hard
lumps such as hardpan or cemented gravel which cannot be broken readily,
such material shall be well distributed throughout the embankment, and
sufficient earth or other fine material shall be placed around the large material
as it is deposited so as to fill the interstices and produce a dense compact
embankment, but in no case shall any material exceed 24" in any dimension.
3.8 COMPACTION OF BACKFILL AND EMBANKMENT MATERIALS
A. The Contractor shall provide a minimum of one compaction test per day, and
an additional compaction test for each 500 sf completed and at each structure
(e.g. manholes), and as required on the Plans or at the direction of the
Central San Inspector.
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June 562 562 of 771 131
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B. Each layer of backfill material as defined herein, shall be mechanically
compacted to the specified percentage of maximum density. Equipment that
is consistently capable of achieving the required degree of compaction shall
be used and each layer shall be compacted over its entire area while the
material is at the required moisture content. Compaction at the top of the pipe
zone shall be done using a plate compactor.
C. Flooding, ponding, or jetting shall not be used.
D. Equipment weighing more than 10,000 pounds shall not be used within a
horizontal distance equal to the depth of the trench. Hand operated power
compaction equipment shall be used where use of heavier equipment is
impractical or restricted due to weight limitations.
E. The following compaction requirements shall be in accordance with ASTM D
1557 except for free draining materials (i.e., Coarse Bedding Material/Drain
Rock/Foundation Material), which shall be i a r nce with ASTM D 4253
and D 4254 for cohesionless free drainin a rials. Where other public
agency, utility company or encroachment ments govern, the
highest compaction standards shall apply.
Percent (%) Location or Use of Fill Relative
Compaction
Pipe zone backfill including beddi and xca ed 90
foundation zone
Final backfill beneath paved as or uctu 95
Trench backfill in ve ement street areas. 90
Trench Zone backfi . 90
Backfill under stru 95
Backfill around st tures er p d areas. 95
Backfill around s tures in sca ed areas. 90
Embankment mat 90
F. The Contractor shall maintain the indicated trench cross section at a minimum
of 12" above the top of the pipe (the top of the "pipe zone").
G. Embankments shall be constructed as recommended by the geotechnical
engineer in compacted layers of uniform thickness.
H. At the time of compaction, the moisture content of embankment material shall
be such that the relative compactions specified will be obtained and the
embankment will be in a firm and stable condition. Embankment material
which contains less than the required moisture content shall be watered and
material which contains excessive moisture shall not be compacted until the
material is dry enough to obtain the required compaction.
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3.9 TEMPORARY PAVING
A minimum of 2" of cold or hot mix temporary asphalt shall be placed in finished
trenches and rolled to a smooth surface at the end of each day unless final paving
can be completed, or steel plates are used to cover trenches in paved streets. Traffic
plates shall be subject to the requirements of 3.3 above. The temporary asphalt shall
be placed within 1/4" of finished pavement grade.
- END OF SECTION —
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Section 32 12 16 - Asphalt Paving
Part 1 - General
1.1 THE REQUIREMENT
The Contractor shall perform all work associated with Asphalt Concrete (AC)
pavement and base restoration as specified herein and satisfying all the
encroachment permit requirements of agencies having right-of-way jurisdiction,
whichever is more stringent.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 31 05 19 - Geosynthetics for Earthwork
B. Section 31 23 16 - Excavation, Bedding and Backfill
1.3 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. Commercial Standards:
ASTM D 1188 Test Method for Bulk )ecifl, cavity and Density of
Compacted BituminoL M; `.ure. 'sing Coated Samples
ASTM D 1557 Test Methods for Labc. at, • Comp, , Characteristics
of Soil Using Modific-4 Effort '9,000 ft-Ibf/ft3 (2,700 kN-
m/m3))
ASTM D 2950 Test Method fc Den .y L ,numinous Concrete in Place
by Nucle etliod
AASHTO T 209 xim pecific ly and Density of Bituminous
es
Caltrans Standard ci n § Bituminous Seals
Caltrans Standard ecificati 9 Asphalt Concrete
Caltrans Standard §59 Painting
Caltrans Standard Specification §84 Traffic Stripes & Pavement Markings
Caltrans Standard Specification §85 Pavement Markers
Caltrans Standard Specification §92 Asphalts
Caltrans Standard Specification §93 Liquid Asphalt
Caltrans Standard Specification §94 Asphaltic Emulsions
Part 2 - Products
2.1 GENERAL
Without limiting the generality of other requirements of the Plans, all work specified
herein shall conform to or exceed the requirements of the local jurisdiction.
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2.2 AGGREGATE BASE
Aggregate base shall be Type I backfill material as specified in Section 3123 16 -
Excavation, Bedding and Backfill.
2.3 PRIME COAT
Prime coat shall be Grade SC-70 liquid asphalt complying with the requirements of
Caltrans Standard Specification §93.
2.4 TACK COAT
Tack coat shall be emulsified asphalt Grade SS-1 or SS-1 h, CSS-1 or CSS-1 h
diluted with one-part water to one-part emulsified asphalt. Emulsified asphalt shall
comply with the requirements of Caltrans Standard Specification §94.
2.5 ASPHALT
Asphalt shall be Grade AR-4000 complying with t e irements of Caltrans
Standard Specification §92.
2.6 ASPHALT-AGGREGATE COURSE
A. The job-mix formula for the asphalt-ag mixtu I be within the
limits specified in Caltrans Standar ecifi s §3 . Asphalt aggregate
shall be Type A, 1/2" maximum,
B. The asphalt-aggregate course tur et the Caltrans Standard
Specifications §39-2.02.
2.7 PAVEMENT M NG RIPE MENT MARKERS AND CURB
PAINTING
A. Stripes and pa v kin Iacement shall be thermoplastic material in
accordance wi altran nd d Specifications, Section 84.
B. Pavement mar place t shall be in accordance with Caltrans Standard
Specifications §8
C. Paint for replaced curbs, where required for fire lanes, no parking zones, and
other similar markings shall match existing color and be in accordance with
Caltrans Standard Specifications §59-6.
D. Pavement lane delineators shall match existing and shall be in accordance
with Caltrans Standard Specifications requirements.
Part 3 - Execution
3.1 GENERAL
A. Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency having jurisdiction (including the terms
and conditions of an encroachment permit issued by a city or county) are
greater, in which case the greater requirements shall govern.
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B. Pavement Restoration: Pavement cut for trenching and/or damages caused
during the work shall be restored with a cross section equal to that of the
existing road, or a minimum of 4" of asphalt over 6" of aggregate base
(whichever is greater). The limits of the pavement restoration shall extend to
competent existing pavement, and shall be "T-cut" with a minimum width
equal to the trench width plus 12" on each side of the trench. Where the edge
of the "T-cut" is within 24" of the edge of the existing paving, restoration in
that area shall extend to the edge of the road.
3.2 SUBGRADE PREPARATION
The subgrade shall be prepared as specified Section 3123 16 - Excavation,
Bedding and Backfill. The surface of the subgrade after compaction shall be hard,
uniform, smooth, self-draining and true to grade and cross-section with roller.
3.3 PREPARATION OF EXISTING AC PAVEMENT
The edge of existing AC pavement shall be saw c t e a smooth joint for new
pavement. The Contractor may saw cut or mec call d the pavement before
excavating the trench to facilitate removal of pa . A ench backfill and
compaction, the Contractor shall saw cut and re mini 1&2" AC beyond
any irregular or damaged pavement on each side f t ench re installation of
the trench pavement patch.
3.4 AGGREGATE BASE
Aggregate base (AB) shall be provid re own a thickness required. The
Contractor shall install ag ate to ma e ' g pavement AB thickness or
a thickness of 6", whichev re B sha elivered to the jobsite as
uniform mixtures and each la hal pread in one operation. Segregation shall
be avoided, and the base e o kets of coarse or fine material. Where
the required thickness is or less, bas materials may be spread and
compacted in one layer. ere the 'red thickness is more than 6" the base
material shall be spread a mp d in 2 or more layers of approximately equal
thickness. The maximum co thickness of any single layer shall not exceed
8". The compaction of each layer of aggregate base shall be not less than 95% of
maximum density when measured in accordance with ASTM D 1557. The
compacted surface of the finished aggregate shall be hard, uniform, smooth, self-
draining and true to grade and cross-section.
3.5 PRIME COAT
Prior to placing pavement, a prime coat shall be applied to the compacted base or
subgrade at a rate between 0.30 and 0.50 gal/sq yd.
3.6 TACK COAT
A tack coat shall be applied to existing paved surfaces where new asphalt concrete
is to be placed on or against existing pavement. It shall also be applied to the
contact surfaces of all pavement joints, curbs, gutters, manholes and the like
immediately before the adjoining asphalt pavement is placed. Care shall be taken to
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prevent the application of tack coat material to surfaces that will not be in contact
with the new asphalt concrete pavement. Tack coat shall be applied at the rate of
0.20 to 0.30 gal/sq yd.
3.7 ASPHALT CONCRETE
A. At the time of compaction, the temperature of mixture shall not be lower than
285°F or higher than 325°F, the lower limit to be approached in warm weather
and the higher in cold weather.
B. Asphalt concrete shall not be placed when the atmospheric temperature is
below 50°F or during unsuitable weather.
C. Asphalt concrete shall be spread and compacted in the number of layers and
thicknesses specified in Caltrans Standard Specifications, Section 39-6.
D. The depositing, distributing and spreading of the asphalt concrete shall be
accomplished in a single, continuous op r
E. The mix shall be compacted using sui le tion methods immediately
after placing, such as a paving roller fo r jo
F. Upon completion, the final surface, pav hall b to grade and
cross-section. The edge between d e pavements shall be flush.
When a 10-foot long straighted lai the ed surface parallel to the
center of the roadway, the surf sh ry from the edge of the straight
edge more than 1/8" exce i r tion hanges of grade. In the
transverse di ' n
rec , the ace sh no ry from the edge of the
straightedge mo an
G. The relative den co tion shall be 96% of the density obtained by
using AASHTO st d T . A properly calibrated nuclear asphalt
testing device II be us r determining the field density of compacted
asphalt concret accor e with ASTM D 2950, or cores may be
laboratory tested nce with ASTM D 1188. The Contractor shall
supply certified test r its of the adequacy of compaction. The Contractor
shall provide a minimum of one compaction test per day and an additional
compaction test for each 500 sf completed.
3.8 PAVEMENT MARKINGS, STRIPES, PAVEMENT MARKERS AND CURB
PAINTING
H. The Contractor shall restore all existing pavement markings, stripes and
pavement markers to their original or better condition. Stripes and pavement
marking replacement shall be installed in accordance with Caltrans Standard
Specifications §84 unless otherwise directed by Central San.
I. Pavement marker replacement shall be installed in accordance with Caltrans
Standard Specifications §85 unless otherwise directed by Central San.
Part VI. Technical Specifications
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J. Paint for replaced curbs, where required for fire lanes, no parking zones and
other similar markings shall be installed in accordance with Caltrans Standard
Specifications §59-6 unless otherwise directed by Central San.
3.9 SLURRY SEAL
A. For all locations that will not receive a full-width pavement overlay, a slurry
seal shall be applied to match the surfaces of adjacent existing pavement and
to cover the joint between the pavement patch and the existing pavement.
Before placing slurry seal the pavement shall be cleaned by sweeping or
other means necessary to remove all loose particles of paving, dirt and other
extraneous material.
B. The slurry seal shall be mixed in accordance with the requirements of
Caltrans Standard Specifications §37-2.04 and the following provisions:
1. Mixing machines shall be equipped with a viker pressure system and
nozzle type spray bars to provide a rat tion of the fog spray.
The mixing machine shall be adjusted co ate for ambient
temperature, surface texture, etc., an ov entire surface
without flowing or ponding.
2. The slurry mixture shall be unifor ead eans of a controlled
spreader box conforming to the it iso trans Standard
Specifications §37-2.05.
3. The slurry mix shall be pl in a dan with the requirements of
Caltrans Stand Spe tion §3 d the following provisions:
4. Slurry seal shall n pla the pavement or the air temperature is
below 55°F.
5. Slurry seal sha a feath onto existing pavement to provide a smooth
transition betw new an isting pavements.
C. All existing and new m covers, valve boxes, vault covers and the like
shall be temporarily covered during slurry sealing to prevent contact with
these surfaces. The temporary coverings shall be removed after application of
the slurry seal.
3.10 ASPHALT CONCRETE PAVEMENT OVERLAY
A. Pavement grinding shall be performed such that the new finished pavement
grade accurately matches the grade of existing gutters and storm drain inlets
and restores the existing street crown sloping.
B. Where indicated on the Plans, the Contractor shall install geotextile paving
fabric in accordance with Section 3105 19 - Geosynthetics for Earthwork
prior to placement of the pavement overlay.
C. Existing manhole covers, valve and survey monuments pots and vault lids
shall be raised to the new pavement grade as required by each agency with
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jurisdiction over these appurtenances. The Contractor shall restore any utility
structures and appurtenances that become damaged during grinding or
overlay work including, but not limited to, raising castings to match new
finished grades and repairing concrete collars. The Contractor shall
coordinate work with those utility agencies that require repairs to be
performed by their own forces.
D. Any joint between overlaid pavement and existing pavement shall be slurry
sealed per Paragraph 3.9 upon completion of the overlay work. Existing
pavement markings shall be restored in accordance with the requirements of
Paragraph 3.8 above.
E. Overlaid pavement shall be flush with the existing pavement grade at all joints
with existing pavement and/or gutters.
- END OF SECTIO —
10
Part VI. Technical Specifications
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Section 32 15 60 -All-Weather Access Roads
Part 1 - General
1.1 THE REQUIREMENT
All-weather roads shall be provided for permanent maintenance access to all Central
San structures (e.g., manholes and rodding inlets). The Contractor shall construct
these roads as shown on the Plans and specified in this Section.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 31 23 16 - Excavation, Bedding and Backfill
B. Section 32 12 16 - Asphalt Paving
C. Section 03 30 00 - Cast-In-Place Concrete
1.3 CONTRACTOR SUBMITTALS
A. Any alternative materials not listed in this Secti shall be submitted for
review and approval by Central San. If the material is a
requirement of a local jurisdiction (e.g. Ci r the Applicant shall
submit a copy of correspondence with the ris n stating their
acceptance and/or requirement of the mat
Part 2 - Products
2.1 MATERIALS
A. Type I Bedding and Backfill M n a ga se) shall be in accordance
with the requiremen of Se 312 - avation, Bedding and Backfill.
B. Asphalt Concrete sh in rdance Section 32 12 16 -Asphalt
Paving.
C. Concrete shall be accor wi the requirements of Section 03 30 00 -
Cast-In-Place Co te.
Part 3 - Execution
3.1 REQUIRED STRUCTURAL CROSS SECTION
A. The minimum structural cross section for all-weather access roads shall
depend on the finished grade of roadway as follows:
Finished Minimum Required Structural Cross Section
Grade
<10% 11" of Type I Bedding and Backfill Material (newly quarried crushed "Clayton Blue" or
equal, not recycled material or mined alluvium), or equivalent section based on Caltrans
"Gravel Equivalent Method", over competent native sub-base
10-15% 2-1/2"of Asphalt Concrete (AC), over a minimum of 9" of Type I Bedding and Backfill
Material (newly quarried crushed "Clayton Blue" or equal, not recycled material or mined
alluvium), or equivalent based on Caltrans "Gravel Equivalent Method", or 6" reinforced
concrete (#4 @ 16" OC each way, or equivalent WWF), over a minimum of 3"Type I
Bedding Material sub-base
15-20% 6" of reinforced concrete (#4 @ 16" OC each way, or equivalent WWF) over a minimum of
3" Type I Bedding Material sub-base compacted to 95% relative compaction, grooved per
Contra Costa County Fire Protection District Drawing. No. FPS-001-D3.
Part VI. Technical Specifications
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>20% not allowed
3.2 REQUIRED GEOMETRY
A. Minimum geometric requirements for all-weather access roads shall be as
follows:
1. The minimum width of access roads shall be 12 feet.
2. The maximum cross slope of access roads shall be 2%.
3. The minimum radius at the centerline of access roads shall be 28 feet.
4. Access roads shall either have access to a public road at each end, or
shall have a turn-around as shown on DWG 20-08.
3.3 DRAINAGE
Engineered drainage facilities to properly con ater runoff from the
roadway surface and adjacent areas into sto dra' drainage ways shall be
provided.
- END OF SE
Part VI. Technical Specifications
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Section 33 01 30.11 - Inspection of Sewers
Part 1 - General
1.1 THE REQUIREMENT
A. The Contractor shall furnish all labor, materials, tools, and equipment
necessary to clean, perform testing, and provide for televising of completed
sewer pipelines.
B. The Contractor shall call the Central San Inspection Office at least one
business day in advance to arrange for an Inspector to be present for the pre-
installation CCTV inspection.
C. The Contractor shall notify the Inspector at least one business day prior to
any cleaning, testing, or televising work. All final testing and cleaning of sewer
lines shall be done in the presence of the Inspector.
D. The Contractor shall complete cleaningan sewer lines as required
in this Section prior to requesting CCTV i ect'
E. No testing will be allowed until all utilities h een i le .
F. If deficiencies are identified during testin t e ractor all re-test after
the deficiencies have been correcte
1.2 REFERENCE SPECIFICATIONS, D STA DARDS
A. Commercial Standards:
ASTM C 969 and ractice ation and Exfiltration
pta Testin stalled Precast Concrete Pipe
S Lin
ASTM C 1091-03 est d f ydrostatic Infiltration Testing of Vitrified
lay Pip es
AWWA C600-54T Ilat' of Ductile-Iron Water Mains and Their
A ances
ASTM D 3034 Specification for Type PSM Poly (Vinyl Chloride) (PVC)
Sewer Pipe and Fittings
ASTM F 679 Specification for Poly (Vinyl Chloride) (PVC) Large-
Diameter Plastic Gravity Sewer Pipe and Fittings
Part 2 - Products
2.1 MATERIAL REQUIREMENTS
A. Mandrels, temporary plugs, low-pressure testing equipment and all other
necessary materials shall be provided by the Contractor, subject to the
Inspector's approval.
B. No materials shall be used which would be injurious to the public, personnel,
adjacent improvements or the pipeline.
Part VI. Technical Specifications
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C. Air test gauges shall be laboratory-calibrated test gauges and shall be
recalibrated by a certified laboratory prior to the leakage test. Gauge shall be
easy to read in no more than 1 psi per increment and have a maximum full-
scale range of 5 psi.
Part 3 - Execution
3.1 GENERAL
A. The Contractor shall clean pipelines by balling and flushing or hydroflushing
prior to deflection and pressure testing.
B. The Contractor shall perform deflection and pressure tests after submittal of
compaction reports demonstrating compliance with the backfill compaction
requirements and before CCTV inspections.
C. Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency h vi 'ur' diction (including the terms
and conditions of an encroachment pe is by a city or county) are
greater, in which case the greater req II govern.
3.2 CLEANING
A. After the pipeline installation has b omp to the satisfaction of Central
San, the Contractor shall clean t the nce of the Inspector.
B. The Contractor shall clean al s er ' a , deemed necessary by the
Inspector, with a cleaning ode a in rdance with the device
manufacturer's i ructi r reco ions and flushed. Hydroflush-
pressure shall b 'ntai elow psi. Traps with screens in
accordance with D 1- II be used to trap debris. The Contractor
shall remove al th nhole prior to removing the trap.
C. Release of wa during a after cleaning and testing has been
completed, sha erfor ed in a manner approved by the Inspector. The
Contractor shall b ible for the proper disposal of water released.
D. The Contractor shall perform an additional cleaning of the pipeline after the
installation of final paving, top block, frames and covers, and after all other
required inspections, if required by the Inspector due to a reasonable
determination that additional debris may have accumulated in the pipeline
after initial cleaning.
3.3 PIPELINE DEFLECTION TESTING
PVC and HDPE pipe 8" in diameter or larger shall be tested for deflection, joint
displacement, or other obstruction by passing a rigid mandrel through the pipe.
Deflection shall be tested after submittal of daily compaction reports demonstrating
compliance with, but prior to, permanent resurfacing. The mandrel shall be a full
circle, rigid, non-adjustable, an odd-numbered leg (9 leg minimum), acceptable to
the Inspector as to design and manufacturer. Mandrel size shall meet the minimum
requirements set forth in ASTM D 3034 and ASTM F 679. The circular cross section
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of the mandrel shall have a diameter of at least 95% of the specified average inside
diameter of the pipe and the minimum length of the circular portion of the mandrel
shall be equal to the nominal diameter of the pipe. Where obstructions and
excessive deflection encountered by the mandrel, the Contractor shall remove,
replace and retest the deficient section. Re-rounding will not be allowed.
3.4 PIPELINE LEAKAGE TESTING
A. Repaired pipelines shall be re-tested as follows:
Sewer Type/Size Acceptable Tests
Gravity <_ 16" low-pressure air test or a water pressure test
Gravity > 16" water pressure test only
Pressurized air-over-water pressure test at 120% of maximum design
(force mains) operating pressure, measured at the lowest point of the
pipeline section being tested.
B. Air Testing
1. Each section of main sewer and it pu t connected laterals
shall be tested between successiv plugging and bracing
all openings in the sewer lines. If an s are d the air pressure
shall be released, the leaks eliminat the t cedure started
over again.
2. Air tests shall be conducted Zaccliti. the following procedure
and the table below:
As
Pipe Diam r gth Length of test
in ft (minutes)
4to8 II 4
10 0 15 4
> 5 5
12 o 155 4
55 to 190 5
> 190 6
15 & 16 Oto 120 5
120 to 165 7
> 165 8
>16 Hydrostatically test in accordance with
Paragraph C
Note: All tests shall be performed at 4 psi using a 5 Ib
gage.
All necessary test equipment shall be in proper working order and tests shall
be made in the presence of the Inspector. Test plugs shall be carefully placed
at each end of the section of line to be tested. When all necessary test
equipment is in place, a compressed air supply shall be attached to the air
fitting on the test equipment and the air pressure within the line increased to 4
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psi. After the air supply is securely turned off or disconnected, there shall be a
2-minute waiting period to allow stabilization of air within the sewer line before
the actual test period begins. In no case shall the air pressure within the line
be less than 3-1/2 psi at the beginning of the test period. The allowable air
pressure loss shall not exceed 1 psi. When testing side sewers, or portions
thereof, the test period shall be 4 minutes and the allowable loss shall not
exceed 1 psi. After completion of a test, the air pressure shall be released
slowly through the valve, which is incorporated in the test equipment. Air test
plugs shall not be removed until the air pressure is no longer measurable.
C. New sewers larger than 16" diameter shall be hydrostatically tested in
accordance with the following procedure:
1. After installation, all new trunk sewer pipelines shall be thoroughly cleaned
prior to pressure testing. A section of trunk sewer shall be prepared for
testing between two structures by pluggW the inlet side of the discharge
manhole and all openings in the up hole except the discharge
opening. All plugs shall be properl ac inst the manhole wall to
withstand the forces of the test in o pr loss in the event of a
failure.
2. A section of the trunk sewer pr as a shall be tested by filling it
with water to an elevation 5 f a the t pipe at the upstream end
of the test section, or 5 feet ove ting groundwater elevation,
whichever is greater. T w r II b duced into the test section at
least one hou in adv of th st p od and refilled as necessary prior
to commenc nt o test pe allow the pipe and joint material to
become satura The in water may be determined by measuring the
rate of fall of le ut the level shall not be allowed to fall more
than one fo elow pe d head during the test period.
3. For RCP, th essure I be maintained for not less than 4 hours and
the leakage r t exceed 200 gallons per inch of diameter per
mile of pipe for rs (ASTM C 969-02). For VCP, the pressure shall
be maintained for not less than one hour and the leakage rate shall not
exceed 200 gallons per inch diameter per mile for 24 hours (ASTM C
1091-03a). For DIP, the pressure shall be maintained for not less than one
hour and the leakage rate shall not exceed 70 gallons per inch diameter
per mile of pipe of 24 hours (AWWA C600-54T).
D. When leakage exceeds the amount allowed by the specifications, the
Contractor shall locate the leaks, submit a repair procedure for the Inspector's
review, and make the necessary repairs.
3.5 MANHOLE TESTING
A. Hydrostatic Testing: Central San may require hydrostatic testing for leakage
after installation and prior to backfilling. Prior to hydrostatic testing, all
manholes shall be visually inspected. All defects shall be repaired by the
Contractor, with non-shrink grout, to the satisfaction of the Inspector. All pipes
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entering the manhole shall be sealed at a point outside the manhole walls to
include testing of the pipe/manhole joints. Safety lines shall be secured to all
plugs utilized. The manhole shall be filled with water to a level 2" below the
top of the frame. After a period of at least one hour to allow the water level to
stabilize, the manhole shall be refilled and the water level shall be checked.
The water level shall again be checked after a period of 4 hours. If the water
level drops by more than 1", the leakage shall be considered excessive, and
the Contractor shall make necessary repairs and retest the manhole.
B. Vacuum Testing: As an alternative to manhole hydrostatic testing, the
Inspector may allow the use of vacuum testing. A vacuum of 10" of mercury
shall be drawn on the manhole, the valve on the vacuum line of the test hood
closed and the vacuum pump shut off. The manhole shall be deemed to have
passed the test if the vacuum drop is less than 1" of mercury during a one-
minute test period.
3.6 CCTV INSPECTION
A. Central San will perform a CCTV inspecti of 'tary sewer upon
substantial completion of the work.
1. The Contractor shall coordinate with the In or to nge for an
acceptable time to conduct the in
2. Defects discovered by the CCT ins p all e corrected and the line
re-inspected at the Contra 's s
3. If a portion of atire ' to be spected, a separate fee will be
due as establish Ce San. I ction fees are payable prior to
the date of the p T ection.
4. The Contracto all req C inspection once the following have
been complete
a) Sewer pipelin ailed, backfilled, and compacted.
b) Structures are in place, channeling is complete, and pipelines are
accessible from structures.
c) All other underground facilities, utility piping, and conduits in the vicinity
are installed.
d) For street locations, placement of aggregate base has been
completed.
e) Pipelines to be inspected have been cleaned and flushed.
f) Final pressure test has been completed.
g) Mandrel testing is complete.
B. The procedure outlined below will be repeated until all deficiencies observed
by CCTV inspection have been corrected to the satisfaction of Central San.
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1. The Contractor shall request Central San to schedule the CCTV
inspection.
a) If Central San's CCTV crew arrives at the jobsite and the work is not
ready or accessible, the Contractor will be billed the cancellation fee
payable to Central San prior to the date of rescheduled CCTV
inspection. The Contractor shall reschedule CCTV inspection as
outlined above.
2. Central San will televise the job.
a) If no deficiencies are observed, the work will be considered
satisfactory.
b) If deficiencies are observed, a recording will be made and defects
serious enough to require correction will be identified by the Inspector
who will provide written notification. I orrective work is indicated and
viewing of the recording is desir t tractor shall contact the
Inspector to set a time for the v in rrective work will be
subject to approval by Central ntr n reserves the right to
require cleaning and additional I ting o paired pipeline.
Those portions of the pipeline here lenci ave been corrected
shall be re-televised. Pay -tele n inspection fees shall be
paid to Central an prior the uled to of the inspection.
C. The following observation C ins ons will require correction:
1. Low spot 0. x d ter of reater (e.g., 0.5" for an 8" pipe).
2. Joint separation 4" o ater opening between pipe sections).
3. Cocked joi rese str t runs or on the inside of pipe curves.
4. Chips in pip nds.
5. Cracked or da e.
6. Offset joints.
7. Infiltration.
8. Debris or other foreign objects.
9. Other obvious deficiencies.
D. CCTV inspection of the work and the correction of observed defects shall not
relieve the Contractor of its responsibility for the warranty period.
— END OF SECTION —
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Section 33 05 13 - Manholes and Structures
Part 1 - General
1.1 THE REQUIREMENT
The Contractor shall furnish and install manholes and structures, complete with
precast manhole bases or cast-in-place (if approved during Plan Review), pipe
connections, barrel and cone components, preformed joint sealant, grade rings,
frames, covers and other appurtenances shown on the Plans or specified in this
Section.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Part VI Standard Drawings
B. Section 03 30 00 - Cast-In-Place Concrete
C. Section 03 60 00 - Grout
D. Section 05 50 00 - Miscellaneous Metal V -k
E. Section 31 05 19 - Geosynthetics for Earth
F. Section 33 01 30.11 - Inspection of Sewers
1.3 REFERENCE SPECIFICATIONS, D Si. 'DARDS
A. Commercial Standards:
ASTM C 150 Specification for I nd me
ASTM C 478 Speci on ecast ced Manhole Sections
1.4 CONTRACTOR SU LS
Upon request by Central n, the trac shall submit complete shop drawings
for all precast manhole b s to Ce an and shall receive favorable review prior
to ordering the bases.
1.5 QUALITYASSURANC
After installation, the Contractor shall demonstrate that all manholes have been
properly installed, level, with tight joints, at the correct elevations and orientations
and that the backfilling has been carried out in accordance with the Plans and these
Specifications. Vacuum testing of manholes may be required at Central San's sole
discretion.
Part 2 - Products
2.1 MATERIALS
A. Manhole bases may be either cast-in-place or precast. Channels and shelves
shall conform to the requirements DWG 19-01 through 19-07. Manhole
channels shall be shaped to form a smooth transition of uniform cross-section
from inlet pipes to the outlet pipe, both horizontally and vertically.
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B. Precast Concrete Components: Only components listed in the Approved
Materials List shall be used in the construction of manholes.
1. Precast manhole bases, and barrel and cone sections shall be
manufactured by a process that will produce dense homogeneous
reinforced concrete of high quality in conformance with ASTM C 478.
Cement shall be Type V Portland Cement as specified in ASTM C 150.
2. Precast manhole components shall be designed to support vertical
AASHTO H-20 truck loading, plus the weight of soil above the cone
section.
3. Pipe connections at precast bases shall be pipe bells of the size, material
and class of inlet and outlet pipes, integrally cast into the base by the
manufacturer.
4. The minimum wall thickness for barrel a cone sections (in inches) shall
be calculated by dividing the nomin i of the barrel (in inches) by
twelve (i.e., D/12).
5. Manhole throats shall be constructe einfor rete grade rings.
C. Preformed plastic sealing gasket foLaaaling s between the manhole
base, barrel and cone sections s liste the Approved Materials
List.
D. Non-shrink grout shall con t equi ents Section 03 60 00 - Grout.
E. Castings for ma a fr and c all conform to the requirements of
Section 05 50 00 - cel us Meta Work.
F. Primer and sea r se exterior joints between precast
components s I be as in e Approved Materials List.
G. Concrete for ca - lace nhole and rodding inlet components (bases and
top blocks) shall c Section 03 30 00 - Cast-In-Place Concrete.
2.2 TEMPORARY COVERS
Temporary covers for new construction or reconstruction of manholes shall be
fabricated as detailed in DWG 19-12.
2.3 TEMPORARY PLUGS
Temporary plugs shall be of the mechanical expanding type. Pneumatic are not
acceptable.
Part 3 - Execution
3.1 GENERAL
A. Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency having jurisdiction (including the terms
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and conditions of an encroachment permit issued by a city or county) are
greater, in which case the greater requirements shall govern.
B. An All-Weather Access Road as specified in this Section is required for
access to all structures in off-road locations (e.g., easements).
3.2 INSTALLATION
A. Temporary Plugs
1. Mechanical expanding-type temporary plugs shall be installed and
removed, as specified below, in the presence of an Inspector. Plugs shall
be secured by tethering with a '/4" nylon rope attached to the top of a wood
2'x4' of sufficient length to extend from the shelf to a point in the throat
within 6" of the underside of the cover.
a) When a manhole exists or a new manhole is constructed at the
beginning of a new main extension, a temporary plug shall be installed
at the inlet of the new pipe at the exi in ole or new manhole.
b) When a new main extension begin t a ng rodding inlet or stub,
a temporary plug shall be installed out the first manhole
upstream from the beginning of the ain e
B. Cast-in-Place Manhole Bases
1. Cast-in-place manhole bases o exi wer shall be poured against
undisturbed native soil, whi h b ex ed to the dimensions
shown on the Plans. For sewe stall ons, the cast-in-place
manhole base be d ove 1 Backfill. See DWG 19-01
through 19-08. If xca n exten beyond the dimensions shown on
the Standard Dr he actor shall construct forms and pour the
base to the sp ed sio
2. If water or soft and is a ntered at the bottom of the excavation, a
minimum lift of oar bedding material in a geotextile wrap shall be
used as shown on 9-01.
3. A joint forming ring shall be used to form a level joint groove in the
manhole base while the concrete is fresh to receive the first precast barrel
section. The metal forming ring may be removed as soon as the concrete
has set sufficiently to eliminate any slump in the joint groove.
4. Manhole channels shall be shaped to form a smooth transition from inlet
pipes to the outlet pipe, both horizontally and vertically.
C. Precast Manhole Bases (on all new main sewer extensions)
1. Precast manhole bases shall be placed to the lines and grades shown on
the Plans as an integral part of the pipe laying operation on a minimum
thickness of 6" of Type I Bedding and Backfill Material compacted to 95%
relative compaction. Where soft ground or water is present, a minimum
thickness of 9" of Coarse Bedding Material in a wrap of geotextile, per the
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requirements of Section 3105 19 - Geosynthetics for Earthwork, shall be
placed below the course of Type I Bedding and Backfill Material.
2. Inlet and outlet pipe connections at precast bases shall be pipe bells cast
into the base by the manufacturer.
3. All precast concrete manholes shall be installed in strict conformance with
the manufacturer's written instructions on a well-compacted foundation.
D. Setting Precast Barrel and Cone Sections
1. All joint surfaces of precast manhole bases, barrel and cone sections shall
be thoroughly cleaned and dried prior to setting, and shall be sealed with a
preformed plastic sealing gasket listed in the Approved Materials List at
each joint as follows:
a) Remove the paper wrapper from one side of the gasket, retaining the
outside paper in place to protect a and assure against
stretching.
b) Place the plastic gasket strip in nt, f g a continuous gasket
around the entire circumference anh
c) Remove the paper wrappe e e d side of the gasket and
place the next manhole pon
d) Care shall be taken ' h a ng rel and cone sections after
the plastic gasket een xed avoid displacing the gasket or
contami th t or ga dirt or other foreign material. Any
displaced o 'led ets sha a removed and replaced.
e) Care sh to rly align the manhole section with the
previou set sec bef re it is lowered into position.
f) During c r wet ther, the joint surfaces shall be heated with hot
air until ice, d moisture are removed and surface to be primed
is dry and warm. Hot air shall also be passed over plastic gasket strips
immediately prior to attaching them to joint surfaces and immediately
prior to setting the section.
E. Manhole frames and covers shall not be set to final grade until the pavement
has been completed, unless otherwise approved by Central San. Precast
concrete grade rings shall be installed as shown in the Standard Drawings.
Paving around the manhole shall be in accordance with local jurisdiction
requirements. Openings in manholes shall be protected from construction
loads, debris and unauthorized entry.
F. When new piping is installed in existing structures, the Contractor shall
accurately position core-drilled openings in the concrete as shown on the job
Plans and Standard Drawings or otherwise directed by the Inspector.
Openings shall be of sufficient size to permit a final alignment of pipelines and
fittings without deflection of any part and to allow adequate space for
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satisfactory placement of mechanical seals or packing with non-shrink grout
where the pipe passes through the wall to ensure the resulting structure is
watertight. Before placing the non-shrink grout, concrete surfaces shall be
sandblasted, thoroughly cleaned of sand and any other foreign matter, and
coated with epoxy bonding compound. After connection of the new inlet pipe,
the Contractor shall re-channel the inside of the existing manhole base to
provide a smooth flow channel to the new exit pipe.
G. The throat shall be constructed using appropriately sized reinforced concrete
grade rings to bring the manhole cover to finished grade surface. No plastic
sealing gaskets shall be used for jointing grade or extension rings.
H. Manhole top blocks shall be poured against forms constructed to the specified
dimensions shown on DWG 19-01.
I. All manholes located on slopes steeper than 3:1 (horizontal to vertical) in
easement areas shall be constructed with a ei r d concrete, reinforced
concrete masonry unit or interlocking ma u taining wall as shown on
DWG 19-11.
J. All manholes shall be tested in accordanc ectio 30.11 -
Inspection of Sewers.
K. Temporary covers shall be used du co ctio til permanent frames
and covers are installed.
3.3 RECONSTRUCTION OF EXI S UC RES
A. General
1. Reconstruction ny cular structure shall be diligently
prosecuted so o be pie ithin 3 calendar days after work is
begun on that icular s ure. The Contractor shall provide continuous
access for Cen an m nance forces to the structure at all times.
2. When removing ex ructures, the Contractor shall take precautions
to ensure that no foreign material enters the structure or the downstream
system. Before any work is started, the base shall be covered with a
plywood ("false bottom") as shown on DWG 19-13, and then the false
bottom shall be covered with a drop cloth of heavy canvas. The drop cloth
and false bottom shall be kept in place during the work to catch debris,
and upon completion, shall be removed with the collected debris. No
debris shall enter the downstream system or be allowed to remain in the
manhole.
B. Structure Adjustments and Repairs
1. All workmanship and materials for structure adjustments shall conform to
the requirements of these Specifications. In the case of existing brick or
cast-in-place concrete structures, repair or adjustments shall be
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accomplished with materials in-kind or with precast elements as detailed
on the Plans.
2. Existing structure precast elements, adjustment rings, frames, and covers
removed for adjustments and/or repairs may be reinstalled only when
such undamaged items are permitted by the Inspector for reuse.
3. Manhole adjustments shall be accomplished by one of the methods
specified below or as shown on the Plans:
a) Upward adjustments of manholes to finish grade surface may be
accomplished with reinforced concrete grade rings, formed concrete
and/or a single cast iron extension ring when the adjusted manhole
throat will not exceed 12" in height. In no case shall multiple cast iron
extension rings be used in adjustments. When adjustments are made
that position the bottom of the cast min manhole frame above the
existing concrete top block, the to k all be reconstructed in
accordance with the requireme if 19-01 through 19-08.
b) Whenever upward adjustment o ole uld result in a completed
manhole throat section exceedi n hei upper manhole
section, including the top bloc nd c sectio , shall be removed
and the adjustment shall b y re tructing the structure using
manhole barrel and con ctio de s and frames and covers
in accordance with th r it nt ese Specifications and DWG
19-01 through 19-0
c) Downwa us t s of m s shall be accomplished by removal
of existing or sion rings and cone and barrel sections as
required, str the structure using manhole barrel and
cone se ns, gr ring nd frames and covers in accordance with
the req ents o e Specifications and DWG 19-01 through 19-
08.
4. Rodding inlet add ents shall be accomplished by one of the methods
specified below or as detailed on the Plans:
a) Upward adjustments of rodding inlets shall be accomplished with
formed concrete or cast-iron extension rings where the extension will
not exceed 8", including any previous adjustments. When adjustments
are made that position the bottom of the cast iron frame above the
existing concrete top block, the top block shall be reconstructed in
accordance with the requirements of these Specifications and DWG
19-14.
b) Upward adjustments of rodding inlets exceeding 8" shall be
accomplished by removing the structure's frame, cover, and top block,
and reconstructing the structure in accordance with the requirements
of these Specifications and DWG 19-14. Pipe used for such
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adjustments shall be as required for pipeline repair and shall be
installed to extend the line and grade of the existing pipe.
c) Downward adjustments of rodding inlets shall be accomplished by
removal and reconstructions of the entire upper section of the structure
including the top block.
- END OF SECTION -
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Section 33 05 16 - Cast-Iron Pipe (CIP)
Part 1 — General
1.1 THE REQUIREMENT
The Contractor shall furnish and install cast-iron pipe (CIP) and all
appurtenances as specified, complete and in place, as shown on the Plans, as
specified in this Section and in Section 33 31 16 - Sanitary Sewer Gravity Service
Laterals.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 33 01 30.11 - Inspection of Sewers
B. Section 33 31 16 - Sanitary Sewer Gravity Service Laterals
1.3 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. Commercial Standards:
ASTM A 74 Standard specifications ub Spigot Cast Iron Soil
Pipe and Fittings
CISPI 301 Hubless Cast Iron Soil Pi Fittin nitary and
Storm Drain, Waster Vent g App ications
1.4 QUALITY ASSURANCE
A. Except as modified in this ti at used in the manufacture
or installation of the pipe be d in cordance with the
requirements of ref ed sta
B. Submittals and tes hal one in compliance with Section 33 01
30.11 - Inspecti rs.
Part 2 — Products
2.1 PIPE AND FIT
A. All hub and spigot ca ron pipe (CIP) shall conform to the requirements
of ASTM A 74 as it applies to single hub, extra heavy and service weight
pipe.
B. Service weight, Class SV, pipe shall be the normal requirement of CIP
installations; however, the Inspector may require use of extra heavy, Class
XH, pipe or ductile iron pipe under special conditions.
C. CIP may be installed without the use of foundation bedding material where
such trench bottom provides solid bearing for the full length of the pipe.
The Inspector may require foundation bedding material where conditions
warrant.
D. Cast Iron "Hubless" pipe and fittings shall conform to the requirements of
the Cast Iron Soil Pipe Institute, (CISPI), "Standard No. 301."
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Section 33 05 16 - Cast-Iron Pipe 155
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Part 3 — Execution
3.1 GENERAL
A. Sewer pipelines shall be constructed in compliance with the requirements
of this Section and Section 33 31 16 - Sanitary Sewer Gravity Service
Laterals.
B. Work shall meet or exceed the requirements of these Specifications
unless applicable requirements of an agency having jurisdiction (including
the terms and conditions of an encroachment permit issued by a city or
county) are greater, in which case the greater requirements shall govern.
C. CIP shall not be used in food service or grease interceptor applications.
3.2 COUPLINGS
A. Hubless pipe shall be installed in accordan with CISPI Pamphlet No.
100 using only 4 banded couplings or r uals per the Approved
Materials List.
B. The use of a properly calibrated torque ch se 0 oot-pounds for
jointing shall be mandatory.
- END SE
Part VI. Technical Specifications
156 Section 33 05 16 - Cast-Iron Pipe
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Section 33 05 19 - Ductile Iron Pipe (DIP)
Part 1 — General
1.1 THE REQUIREMENT
The Contractor shall furnish and install ductile iron pipe (DIP) and all appurtenances
as specified, complete and in place, as shown on the Plans, as specified in this
Section and in Section 33 3100 - Sanitary Sewerage Piping and Section 33 31 16 -
Sanitary Sewer Gravity Service Laterals.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 33 01 30.11 - Inspection of Sewers
B. Section 33 31 00 - Sanitary Sewerage Piping
C. Section 33 31 16 - Sanitary Sewer Gravity Service Laterals
1.3 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. Commercial Standards:
ANSI/AWWA C1 10/A21.10 Duc a gray-Iron Fittings, 3 in.
throu . for and Other Liquids
ANSI/AWWA C111/A21.11 -Ga oints for Ductile-Iron and
ray Pre e Pipe and Fittings
ANSI/AWWA C1 15/A21.15 FI ed 'le-Iron and Gray-Iron Pipe
Thr ded Flanges
ANSI/AWWA C 21. T s Design of Ductile-Iron Pipe
ANSI/AWWA C1 51 Ductile-Iron Pipe, Centrifugally Cast
ANSI/AWWA 3/A2 Ductile-Iron Compact Fittings, 3 in. through
12 in. for Water and Other Liquids
AWWA C600 Installation of Ductile-Iron Water Mains and
Their Appurtenances
1.4 QUALITY ASSURANCE
A. Except as modified in this Section, all materials used in the manufacture or
installation of the pipe shall be tested in accordance with the requirements of
the referenced standards.
B. Submittals and testing shall be done in compliance with Section 33 01 30.11 -
Inspection of Sewers.
Part 2 — Products
2.1 GENERAL
A. Ductile-iron pipe (DIP) shall conform to the latest revision of ANSI/AWWA
C1 50/A21.50 subject to the following supplemental requirements. The pipe
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shall be furnished complete with rubber gaskets, and all special fittings shall
be provided as shown on the Plans.
B. Bell and spigot joints and mechanical joints are acceptable for underground
applications. As an alternative to bell and spigot joints the use of mechanical
and flanged joints will be permitted for above ground applications only.
2.2 PIPE
Ductile iron pipe shall be of the diameter indicated at a minimum Class 52, and shall
be manufactured with standard bell and spigot joints in accordance with the latest
revision of ANSI/AWWA C1 51/A21.51.
2.3 LINING AND COATING
Pipe shall have standard asphaltic coating on the exterior and be epoxy lined on the
interior with Protecto 401 TM ceramic epoxy lining as manufactured by U.S. Pipe, or
approved equal.
2.4 FITTINGS
A. Fittings shall be ductile iron at a minimum ss 5 in s shall conform
to the latest revision of either ANSI/AWWA 21.1 SI/AWWA
C153/A21.53. Fittings and accessorie I be hed with either Push-on
or Mechanical Type Joints in accor AN WA C111/A21.11.
B. Ductile-iron pipe and fittings shall ur ' e mechanical joints, push-on
joints, flanged joints, and/or r in d j( ts, a quired. Bolted joints shall not
be used for undergr� ind i tions.
1. Mechanical an h-o II and spigot joints shall conform to
ANSI/AWW 1.1 be furnished complete with all
necessary esson
2. Flanged joi hall co to ANSI/AWWA C1 15/A21.15.
3. Restrained join e per the Approved Materials List.
Part 3 — Execution
3.1 GENERAL
A. Sewer pipelines shall be constructed in compliance with the requirements of
this Section and Section 33 3100 - Sanitary Sewerage Piping and Section 33
31 16 - Sanitary Sewer Gravity Service Laterals.
B. Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency having jurisdiction (including the terms
and conditions of an encroachment permit issued by a city or county) are
greater, in which case the greater requirements shall govern.
3.2 INSTALLATION OF PIPE
All pipe shall be installed in accordance with ANSI/AWWA C600.
Part VI. Technical Specifications
JR 16, 2022 Regular Board Meeting Agenda Packet- Page%ti 05 19- Ductile Iron Pipe (DIP)
Page 183 of 297
3.3 RUBBER-GASKETED JOINTS
Immediately before jointing pipe, the bell end of the pipe shall be thoroughly
cleaned, and a clean rubber gasket, lubricated with an approved vegetable-based
lubricant, shall be placed in the bell groove. The spigot end of the pipe shall be
carefully cleaned and lubricated with a vegetable-based lubricant. The spigot end of
the pipe section shall then be inserted into the bell of the previously laid joint and
pushed into its proper position. Tilting of the pipe to insert the spigot into the bell will
not be permitted.
- End of Section -
Part VI. Technical Specifications
June �0,c96923 qujl�r13 HHF IMrffi�e%Opa)Packet- Page 590 of 771 159
Page 184 of 297
Section 33 05 24 - Steel Pipe
Part 1 — General
1.1 THE REQUIREMENT
The Contractor shall furnish and install steel pipe and all appurtenances as
specified, complete and in place, as shown on the Plans, as specified in this Section
and Section 33 3100 - Sanitary Sewerage Piping and Section 33 31 16 - Sanitary
Sewer Gravity Service Laterals.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 09 90 00 - Painting and Coating
B. Section 33 01 30.11 - Inspection of Sewers
C. Section 33 31 00 - Sanitary Sewerage Piping
D. Section 33 31 16 - Sanitary Sewer Gravity Service Laterals
1.3 REFERENCE SPECIFICATIONS, CODES N DARDS
A. Commercial Standards:
ASTM C 150 Standard Specification ortla nt
AWWA C208-07 AWWA Standard f imen s for abricated Steel
Water Pipe Fitti
AWWA C205-07 AWWA Stand for -Mortar Protective Lining
and Coat' fo t a ipe — 4 in (100 mm) and
arger- p-Appl'
AWWA C620-07 A and fo ray-Applied In-Place Epoxy
f Pipelines, 3 In. and Larger
ANSI/AWS D1.1 truct el g Code
1.4 CONTRACTOR S ITTAL
A. Upon request by Cen , the Contractor shall submit shop drawings and
material details for steel pipe and fittings before the pipe and/or fittings are
manufactured.
B. If such shop drawings are to be submitted by the pipe fabricator or
manufacturer for Central San 's review, the District assigned Job Number and
Contractor's signature shall appear on each drawing, attesting the fact that
the manufacturer has reviewed the drawings, and if such are accepted,
installation will be in conformance therewith.
1.5 QUALITY ASSURANCE
A. Except as modified in this Section, all materials used in the manufacture or
installation of the pipe shall be tested in accordance with the requirements of
the referenced standards.
Part VI. Technical Specifications
JA 16, 2022 Regular Board Meeting Agenda Packet- Page 591 of 771 Section 33 05 24 - Steel Pipe
Page 185 of 297
B. Submittals and testing shall be done in compliance with Section 33 0130.11 -
Inspection of Sewers.
Part 2 — Products
2.1 GENERAL
A. Lining refers to corrosion protection applied to the inside of a pipe. While
coating refers to corrosion protection applied to the outside of pipe.
B. Cement-Mortar protective lining and coating for steel pipe shall meet the
requirements of AWWA Standard C205-07.
C. Epoxy protective lining and coating for steel pipe shall meet the requirements
of AWWA Standard C620-07.
2.2 LININGS AND COATINGS
A. Concrete linings and coatings shall be m n ct ed with Type II Portland
cement conforming to the requiremen A C 150, Concrete linings
shall extend to the ends of each pipe I t ncrete coating shall be
held back 3" from each end of each pip cept e otherwise specified
for abutting pipe or structure connectio
B. Approved corrosion protective co II m e requirements of Section
09 90 00 - Painting and Coatin d b ap d to all exposed metal
portions of pipe before shipme i sh ating damage shall be
repaired in the field with is c este h that used by the pipe
manufacturer a rect the In
2.3 FABRICATION
A. All pipe shall b rke '1h date of manufacture, type of lining and/or
coating and na or tra rk o the manufacturer as identification on each
individual lengt less of ise specified or shown on the Plans.
B. Fabrication of ste a1I be in accordance with the minimum basic
requirements of the following table:
Minimum Basic Steel Pipe Fabrication Requirements
Diameter of Pipe (in.)* 6 8 10 12 14
Steel Cylinder Gauge US Std 10 7
Uniform Minimum Lining 1/2 2/3
Thickness inches
Uniform Minimum Coating 1
Thickness inches
Rod-Wrapping or Wire 7/32 inch diameter or greater at 1.75 inches
Reinforcement maximum clear spacing. Self-furring welded
fabric of 2-by-4 inch No. 13 gauge steel wire.
*The lined pipe shall have a nominal pipe size within the one quarter (1/4)
inch tolerance.
Part VI. Technical Specifications
161
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Page 186 of 297
2.4 FITTINGS
A. Fittings for steel pipe shall conform to the requirements of AWWA C 208.
Special fittings shall be shop fabricated as detailed on the Plans and
approved shop drawings for construction.
B. Steel coupling for joining steel pipe shall consist of acceptable beveled or
flared sleeves, pressed or rolled steel flanges, rubber or neoprene gaskets
and steel bolts with hexagon nuts.
C. Deflection fittings shall not exceed 11.25° at any one angle break in such
fitting and the minimum distance between all miters in a fabricated fitting shall
be 3 feet.
Part 3 — Execution
3.1 GENERAL
A. Sewer pipelines shall be constructed in co li ith the requirements of
this Section and Section 33 3100 - Sanit Se e Piping and Section 33
31 16 - Sanitary Sewer Gravity Service L
B. Work shall meet or exceed the requiremen se S ations unless
applicable requirements of an agency,Jj2&g ju tion (including the terms
and conditions of an encroachment ed city or county) are
greater, in which case the greater uire hall overn.
3.2 WELDING
A. All welding shall b or quali ders, welding operators, and
tackers who have ha r e ence wi the type of materials to be used.
Welders shall be qu der rovisions of ANSI/AWS D1.1 by an
independent local, pro v stin ency not more than six (6) months
prior to commenci work on casing or pipeline. Machines and electrodes
similar to those us the w shall be used in qualification tests.
B. Appropriately sized joi for joining steel pipe shall be welded to the
cylinder to form a self-centering bell and spigot type joint sealed by a
compressed rubber gasket. When such method of jointing is used, Class I
mortar shall be used to point the joint on the inside and Class I non-shrink
grout shall be used to completely fill the annular space between abutting pipe
sections on the outside.
C. Field welds will be permitted only as shown on the Plans. A hand hole will be
required for all field welds. Welding shall be in accordance with the AWS
standards. After field welding is complete and inspected by Central San, all
exposed portions of the cylinder and joint shall be wrapped with 18-gauge
stucco wire and then cement grout band coated with Class I non-shrink grout.
The grout band, once finished, shall immediately be coated with a membrane-
type, fast curing material that will seal the band surface completely.
- END OF SECTION -
Part VI. Technical Specifications
JA 16, 2022 Regular Board Meeting Agenda Packet- Page 593 of 771 Section 33 05 24 - Steel Pipe
Page 187 of 297
Section 33 05 31.11 - Polyvinyl Chloride (PVC) Gravity Pipe
Part 1 — General
1.1 THE REQUIREMENT
The Contractor shall furnish and install PVC pipe and all appurtenances as
specified, complete and in place, as shown on the Plans, as specified in this Section
and Section 33 3100 - Sanitary Sewerage Piping and Section 33 31 16 - Sanitary
Sewer Gravity Service Laterals.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 33 01 30.11 - Inspection of Sewers
B. Section 33 31 00 - Sanitary Sewerage Piping
C. Section 33 31 16 - Sanitary Sewer Gravity Service Laterals
1.3 REFERENCE SPECIFICATIONS, CODES ND STANDARDS
A. Commercial Standards:
AWWA C900-07 Standard for Poly o PVC) Pressure Pipe and
Fabricated Fittings, Thro 1 . (100 mm through
300 mm), for Water r issio Distribution
AWWA C905-08 Polyvinyl C C) ure Pipe and Fabricated
Fittings, 14 . Th 8 In. 350 mm Through 1,200
mm), f r ns ' n and Distribution
ASTM D 1784 Sp ' ation f igi oly (Vinyl Chloride) (PVC)
Co nds an rinated Poly (Vinyl Chloride)
V mpounds.
ASTM D 2241 ' 'cati r Poly (Vinyl Chloride) (PVC) Pressure-
Rate e ( DR-Series)
ASTM D 2321 Pract' or Underground Installation of Thermoplastic
Pipe for Sewers and Other Gravity-Flow
Applications
ASTM D 3034 Specification for Type PSM Poly (Vinyl Chloride) (PVC)
Sewer Pipe and Fittings
ASTM F 477 Standard Specification for Elastomeric Seals (Gaskets)
for Joining Plastic Pipe
ASTM F 1674 Test Method for Joint Restraint Products
1.4 QUALITY ASSURANCE
A. Except as modified in this Section, all materials used in the manufacture or
installation of the pipe shall be tested in accordance with the requirements of
the referenced standards.
B. Submittals and testing shall be done in compliance with Section 33 0130.11 -
Inspection of Sewers.
Part VI. Technical Specifications
June �0,gRQ23R9au?alrbbafdoOgLgYAX''6�Nc?a(PYReYrf-vat�eP&4 of 771 163
Page 188 of 297
Part 2 — Products
2.1 GENERAL
All PVC pipe shall be continuously and permanently marked with the manufacturer's
name, pipe size and pressure rating in psi.
2.2 PIPE
A. All PVC pipe shall be joined by compression, solvent-welded, thermo-fusion
welded or mechanical restrained joints as shown on the Plans.
B. Polyvinyl chloride pipe (PVC) shall conform to the requirements of ASTM D
3034, SDR-26, or AWWA C900 or C905, Class 100, 150, 165, 200, 253, or
305. Material for PVC pipe shall conform to the requirements of ASTM D
1784 for Class 12454-B or 12454-C as defined therein.
C. Flexible rubber rings for compression type joint for PVC pipe and fittings
shall conform to the requirements of AST
D. All sun-faded pipe or pipe with noticeable is will be rejected and
shall be replaced by the Contractor.
2.3 COUPLINGS AND FITTINGS
A. Couplings shall be as listed in the A ate r ist.
B. All fittings for PVC pipe shall co fo to r ments of ASTM D 2241.
The ring groove and gasket ri h I om le with PVC pipe ends.
C. The strength class ing II be n an the strength class of any
adjoining pipe.
D. PVC fittings shall, mi , c rm to the requirements of ASTM D
3034 as they appltype S 6 VC Sewer Pipe using an Elastomeric
Gasket Joint in a b nd spi ssembly system. Rubber sealing gaskets
shall meet the requi ASTM F 477.
E. All PVC pipe entering or leaving a concrete structure shall have a rubber
sealing gasket, as supplied by the pipe manufacturer, firmly seated
perpendicular to the pipe axis, around the pipe banded and cast into the
structure base or near the structure wall center as a water stop. Said water
stop may also consist of a manhole coupling with rubber sealing rings cast
into the structure base (see DWG 20-05).
2.4 RESTRAINED JOINTS FOR C900 PVC PIPE
All restrained joints used in sanitary sewer applications shall meet or exceed the
requirements of ASTM F 1674. All restrained joints shall be per the Approved
Materials List.
Part VI. Technical Specifications
JA416, 2022 Regular Board Meeting Agen%%Oeq 0�3j215195PO�1 Inyl Chloride (PVC) Gravity Pipe
Page 189 of 297
Part 3 — Execution
3.1 GENERAL
A. Sewer pipelines shall be constructed in compliance with the requirements of
this Section and Section 33 3100 - Sanitary Sewerage Piping and Section 33
31 16 - Sanitary Sewer Gravity Service Laterals.
B. Work shall meet the specified requirements of these Specifications unless the
requirements of the local agency having jurisdiction are greater, in which case
the greater requirements shall govern.
3.2 INSTALLATION
PVC pipe shall be installed in accordance with the requirements of ASTM D 2321;
as specified herein and shown on the Plans.
3.3 HORIZONTAL CURVES
Horizontal curves shall be installed using str p gments, each a minimum of
five feet in length and joint deflections or fitti in nce with the requirements
of DWG 21-01, or with forced bends where th so curve exceeds the
minimums specified in the table below:
SDR-26 PVC Pipe (F ds)
Pipe Diameter AdL if 10"
Minimum Radi 135' ZOU 322'
3.4 FIELD JOINTING
A. Each pipe corn ssion- joi hall be joined with a lock-in rubber ring
and a ring gro that is ed to resist displacement during pipe
insertion.
B. The ring and the rin inside the bell shall be wiped clean before the
gasket is inserted. A thin film of lubricant shall be applied to the exposed
surface of the ring and to the outside of the clean pipe end. Lubricant other
than that furnished with the pipe shall not be used.
C. Joints shall not be deflected either vertically or horizontally in excess of the
printed recommendations of the pipe manufacturer.
- END OF SECTION -
Part VI. Technical Specifications
June �0,gRQ23R9au?alrbbafdoOgLgYAX''6�Nc?a(PYReYrf-vat�epA%of 771 165
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Section 33 05 31.33 - Acrylonitrile Butadiene Styrene (ABS) Pipe
Part 1 — General
1.1 THE REQUIREMENT
The Contractor shall furnish and install ABS pipe and all appurtenances as specified,
complete and in place, as shown on the Plans, as specified in this Section and
Section 33 31 00 - Sanitary Sewerage Piping and Section 33 31 16 - Sanitary Sewer
Gravity Service Laterals.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 33 01 30.11 - Inspection of Sewers
B. Section 33 31 16 - Sanitary Sewer Gravity Service Laterals
C. Section 33 31 00 - Sanitary Sewerage Piping
1.3 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. Commercial Standards:
ASTM D 1527 Standard Specificati rile-Butadiene-
Styrene (ABS) Plastic Sche s ,10 and 80
ASTM D 2235 Standard Specific for nt Cement for
Acrylonitrile Bu ren�'`BS) Plastic Pipe and
Fittings
ASTM D 2680 Standard c fo lonitrile-Butadiene-
tyl S) an oly nyl Chloride) (PVC)
po ewer
ASTM D 2751 d ification for Acrylonitrile-Butadiene-
yre BS ',wer Pipe and Fittings
1.4 QUALITYASSUR CE
A. Except as modified i on, all materials used in the manufacture or
installation of the pipes e tested in accordance with the requirements of
the referenced standards.
B. Submittals and testing shall be done in compliance with Section 33 01 30.11 -
Inspection of Sewers.
Part 2 — Products
2.1 GENERAL
Products shall be per the Approved Materials List.
2.2 PIPE AND FITTINGS
A. Composite ABS pipe and fittings shall conform to the requirements of ASTM
D 2680.
Part VI. Technical Specifications
Jure 16, 2022 Regular Board Meeting%%t�&Va&g1.R9kgoogtf"Butadiene Styrene (ABS) Pipe
Page 191 of 297
B. All ABS solid wall pipe and fittings less than 6" in diameter (side sewer) shall,
at a minimum, conform to the requirements of ASTM D 2751 and D 1527 as
they apply to schedule 40 ABS sewer pipe respectively using solvent cement
joint assembly systems.
Part 3 — Execution
3.1 GENERAL
A. Sewer pipelines shall be constructed in compliance with the requirements of
this Section and Section 33 31 16 - Sanitary Sewer Gravity Service Laterals.
B. Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency having jurisdiction (including the terms
and conditions of an encroachment permit issued by a city or county) are
greater, in which case the greater requirements shall govern.
3.2 INSTALLATION
A. Cement used for all ABS pipe joints s co to the requirements of
ASTM D 2235. Jointing shall be acco b lying a coating of
cement to the inside of the socket and outsi spigot end of pipe
to be joined in sufficient quantity that when pigot Ily inserted into the
socket a bead of excess cement aro he entire circumference of
the outside juncture of the said of ocke xcess cement shall then
be removed.
B. The Contractor shall apply o in ce to all pipe ends of ABS
composite pipe ether in a co in not. The purpose is to prevent
migration of gro ate the an space.
C. All ABS pipe enten lea a concrete structure shall have a standard
(water stop) m et, pplied by the pipe manufacturer, firmly
clamped aroun he pip erio and cast into the structure base or near the
structure wall c er as a r stop.
3.3 REPAIRS
When repairing an ABS composite pipe a standard chemically welded coupling is
required for each joint. Cut each coupling at a 45° angle with a narrow-bladed saw
and deburr the edges. Each pipe shall be cut square and deburred. A minimum of a
2-foot piece of pipe shall be used. With 2 straps placed loosely on the edges of each
repair joint, apply primer and cement to inside of the coupling and outside of the
ABS pipe at each joint. Center the coupling around the repair joint placing the cut
upward. Tighten the straps around the coupling allowing the coupling to slide such
that there is a tight fit around the ABS pipe. Finally, dip fiberglass tape into the
primer and lay over the cut applying cement over the strip. Do not apply test
pressures internally or externally for 16 hours, but install bedding and backfill
immediately.
- END OF SECTION -
Part VI. Technical Specifications
June6Q239u alr oa &°eTdeAq 8gc repQe% 0ff71 167
Page 192 of 297
Section 33 05 33.13 - High Density Polyethylene (HDPE) Pipe
Part 1 — General
1.1 THE REQUIREMENT
The Contractor shall furnish and install high-density polyethylene pipe (HDPE) and
all appurtenances as specified, complete in place, as shown on the Plans, as
specified in this Section and Section 33 3100 - Sanitary Sewerage Piping and
Section 33 31 16 - Sanitary Sewer Gravity Service Laterals. The HDPE pipe and
fittings specified herein shall be used only in association with pipe bursting methods
and directional drilling construction methods unless otherwise approved by Central
San.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 33 01 30.11 - Inspection of Sewers
B. Section 33 31 00 - Sanitary Sewerage Piping
C. Section 33 31 16 - Sanitary Sewer Gravity terals
1.3 REFERENCE SPECIFICATIONS, CODE ARDS
A. Commercial Standards:
ASTM D 638 Test Method for Pro es of Plastics
'TiASTM D 696 Test Method f oe of Lar Thermal Expansion
of Plastics
ASTM D 746 est M d for B en Temperature of Plastics and
to by Imp
ASTM D 1238 tho Flow Rates of Thermoplastics by
tru Pla eter
ASTM D 1248 pecifica or Polyethylene Plastics Molding and
rusio aterials
ASTM D 1505 Te od for Density of Plastics by the Density-
Gradient Technique
ASTM D 1525 Test Method for Vicat Softening Temperature of Plastics
ASTM D 1693 Test Method for Environmental Stress-Cracking of
Ethylene Plastics
ASTM D 2240 Test Method for Rubber Property - Durometer Hardness
ASTM D 2837 Test Method for Obtaining Hydrostatic Design Basis for
Thermoplastic Pipe Materials
ASTM D 3350 Specification for Polyethylene Plastics Pipe and Fittings
Materials
ASTM F 585 Practice for Insertion of Flexible Polyethylene Pipe into
Existing Sewers
Part VI. Technical Specifications
JR16, 2022 Regular Board Meeting Ag�giQ opa3cjgt5 Va��5&( F9�1nsity Polyethylene (HDPE) Pipe
Page 193 of 297
ASTM F 714 Specification for Polyethylene (PE) Plastic Pipe (SDR-
PR) Based on Outside Diameter
PLASTICS PIPE Renewing Sewers with Polyolefin Pipe Industry (PPI)
1.4 QUALITY ASSURANCE
A. Except as modified in this Section, all materials used in the manufacture or
installation of the pipe shall be tested in accordance with the requirements of
the referenced standards.
B. Submittals and testing shall be done in compliance Section 33 01 30.11 -
Inspection of Sewers.
Part 2 — Products
2.1 GENERAL
Referenced pipe sizes are nominal pipe diameter
2.2 PIPING MATERIALS
A. Pipe and fittings shall be high density,S
ec -weight polyethylene
with a cell classification of 345434D, a in A, J 3350 and shall be
colored white or light gray. In additi �-ial shall be listed by the
Plastic Pipe Institute with a desi -� and shall be classified as
a Type III, Class C, Category 5 rad aterial, as defined in ASTM D
1248.
B. Fittings shall be the s materi, n�ass as the pipe. Identification of
pipe and fittings be cordar�h ASTM D 3350. Pipe and fittings
shall be made from in al. No rework compound, except that
obtained from t tur wn production of the same formulation,
shall be used. a and ss all be homogeneous throughout and shall
be free of visibl cracks, h , foreign material, blisters, or other deleterious
faults.
C. Dimensions of pipe an fittings shall be in accordance with ASTM F 714. Pipe
and fittings shall be at minimum SDR-17 with cast iron/ ductile iron outside
diameter and have a minimum pressure rating of 100 psi at 73.4°F.
D. The physical properties of the pipe and fittings material shall be as follows:
PROPERTY TEST METHOD VALUE
Density ASTM D 1505 0.955 gm/cc
Melt Index ASTM D 1238 0.14 gm/10 min
Environmental Stress-Cracking Resistance a ASTM D 1693 > 5,000 hr
> 800hr
Tensile Strength, Yield b ASTM D 638 3,200 psi
Elongation at Break° ASTM D 638 > 750 percent
Vicat Softening Temperature ASTM D 1525 257° F
Brittleness Temperature ASTM D 746 < -180° F
Flexural Modulus ASTM D 3350 125,000 psi
Part VI. Technical Specifications
169
June 1T,c�6223R9au?a3rh3oaM' ePRRa'Wge�'XRPX'&%ef AgMblf 771
Page 194 of 297
PROPERTY TEST METHOD VALUE
Modulus of Elasticity ASTM D 638 105,000 psi
Hardness ASTM D 2240 65 Shore D
Coefficient of Linear Thermal Expansion d ASTM D 696 8.3x10 in/in/'F
1.2x10 in/in/ F
Long Term Strength e ASTM D 2837 1,600 psi
800 psi
a - Condition A, B & C @ 0°F; Compressed Ring @ 50°F
b - Type IV specimen
c - Type IV specimen
d - Molded specimen; Extruded pipe
e - @ 73°F; @ 140°F
2.3 JOINTS
A. Joints in HDPE pipe shall be made using m -fusion welding
equipment designed for the specific purp o ently connecting
HDPE pipes. This equipment shall be cap f squ facing the pipe
ends to be joined, properly heating each p' to th rature range
specified by the pipe manufacturer, an lyin sustaining the
appropriate pressure, as recommen pip nufacturer. Test joints
may be requested at the Inspector' iscr ens re the quality of the
joints.
B. Internal beads shall re for all
C. For main sewer insta th tt-fusion welding machine shall be outfitted
with a measuring a ing hat documents the conditions existing
during the fusion ach in ua Id. A printout that includes the date and
time each joint wa ade, th t number, the initials of the machine
operator, the plate perat at the time of mating, the pressure during
the heating cycle, the od for the heating cycle, the pressure during
the soak cycle, and the time period of the soak cycle shall be machine-
generated and delivered to Central San at the end of each work shift, if
required by the Inspector. The recording unit shall be a DataLogger, as
manufactured by McElroy Manufacturing, Inc., or approved equal.
D. Fusion equipment shall be operated by technicians who have been certified
by a major gas public utility such as Pacific Gas and Electric or Southern
California-Edison for operation of such equipment. A copy of the technician's
certification shall be provided to Central San prior to the start of the work, if
requested by the Inspector. Furthermore, all technicians performing butt-
fusion welding on this project shall have a minimum of 2 years' experience
operating the same equipment used hereon.
E. Butt-fusion welding equipment shall be as follows, or approved equal:
Part VI. Technical Specifications
J016, 2022 Regular Board Meeting Ag�giQ opalcjgt5 Va��Bdjg(�9?nsity Polyethylene (HDPE) Pipe
Page 195 of 297
1. McElroy No. 412 Hydraulic Fusion Machine, McElroy Manufacturing,
Tulsa, Oklahoma.
2. Proweld Field 12 (315)-R, Asahi/America, Malden, Massachusetts.
2.4 FITTINGS
A. The Contractor shall provide fabricated fittings where required. Fabricated
fittings shall be of the same material as, and shall have a minimum pressure
rating equal to, the pipeline material. If the fitting is in-line with the pipeline
(i.e., a flange adapter), then the I.D. of the fitting shall be the same as the
pipe. If the fitting is off-line (i.e., a tee), then the fitting shall have an I.D. in
accordance with the Plans. Unless otherwise required, all fittings shall be
butt-fusion welded or flanged.
B. Terminations to pipe or fittings made of other pipe materials shall be made by
using flanges. Flanges shall consist of flan adapters butt-fusion welded to
the HDPE pipe end, ductile iron back-u n a pressure rating of at
least 150 psi, Type 316 stainless stee Its nd washers, and 1/8"
thick, black-reinforced rubber gaskets. as II threaded fittings or
adapters be used to connect HDPE m
Part 3 — Execution
3.1 GENERAL
A. Sewer pipelines shall bec tr e co ce with the requirements of
this Section and Section 1 00 - nit Sewerage Piping and Section 33
31 16 - Sanitar er ity Se era/s.
B. Work shall meet o ed quirements of these Specifications unless
applicable reque an cy having jurisdiction (including the terms
and conditions an enc m nt permit issued by a city or county) are
greater, in whi ase the ter requirements shall govern.
3.2 HANDLING AND E
1. The Contractor shall inspect each pipe and fitting prior to butt-fusion welding
and again prior to installation. Any damaged pipe or fittings shall be replaced
by the Contractor.
2. Prior to butt-fusion welding or installation, each pipe or fitting shall be
thoroughly cleaned and shall be kept clean. The material used to clean the
pipe and fittings shall be as recommended by the pipe manufacturer.
3.3 BUTT-FUSION WELDING
A. Butt-fusion welds shall be performed in accordance with manufacturer's
instructions.
B. For main sewer installations, the Contractor shall mark each joint with the
individual joint number, corresponding to the joint identification number
appearing on the printout of the data logger attached to the butt-fusion
Part VI. Technical Specifications
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welding machine. The printout shall be attached to the pipe near the joint for
collection by Central San.
C. Contractor shall remove the internal melt bead from the welded joint and shall
be accomplished in a manner that does not score or gouge the pipe.
3.4 PIPE DEFLECTION
Horizontal curves shall be installed by forced bending of the pipe. Minimum
curvature radius requirements for HDPE pipe are shown on the table below. All
designs of curvilinear sewers are subject to approval by Central San.
Pipe DR Minimum Curve Radius
<_ 9 20 times pipe O.D.
> 9 - 13.5 25 times pipe O.D.
> 13.5- 21 27 times pipe O.D.
> 21 30 times pipe O.D.
Fitting or flange 100 times pipe O.D.
resent in bend
3.5 FIELD COUPLINGS
A. Fittings/joints that are to be assemble ipe ting or directional
drilling has been completed shall b tt whe ccessible.
B. Electrofusion couplings listed i h p e .,rials List shall be used on
inaccessible locations.
C. Saddles used for tai,. all r the ed Materials List.
- E F SECTION -
Part VI. Technical Specifications
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Section 33 05 39.41 - Reinforced Concrete Pipe (RCP)
Part 1 — General
1.1 THE REQUIREMENT
The Contractor shall furnish and install reinforced concrete sewer pipe (RCP) and all
appurtenances as specified, complete and in place, as shown on the Plans, as
specified in this Section and Section 33 3100 - Sanitary Sewerage Piping.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 33 01 30.11 - Inspection of Sewers
B. Section 33 31 00 - Sanitary Sewerage Piping
1.3 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. Commercial Standards:
ASTM C 76 Specification for R ' f oncrete Culvert, Storm
Drain and Sewer e
ASTM C 150 Specification for P d Ce t
AWWA C 302 Reinforced Concre ure on-cylinder Type,
for Water an Liqu
1.4 CONTRACTOR SUBMITTALS
A. Certificates guaranteeing t p' furn d hereunder is in compliance
with the require nts of a Spe cat' s and the referenced standards.
B. Quality control re as ire( he in.
C. Detailed fabric 'ng designs, special pipe, dimensions, weights,
joint details, la g diagr an a fabrication schedule. Drawings shall
indicate, at rel scale, rete covers, reinforcement placements, joint
assembly desig de ' pipe size, D-load, cement type, concrete
strength and areas, pes and placements of reinforcement.
D. Three-edge bearing test results. Results shall indicate the Central San
assigned project number, agency and operator performing the test, date, pipe
size and specified D-load and ultimate test load applied. The ultimate test
load applied shall not exceed 110% of the specified D-load.
E. Fabrication plant joint leakage testing results.
1.5 QUALITY ASSURANCE
A. For concrete pipes of 30" inside diameter and larger, each pipe joint shall be
inspected by the Contractor from the inside of the installed piece of pipe
before backfilling and before the next piece of pipe is connected. The
inspection shall include the checking of proper joint gaps and gasket
placement, and damaged or chipped joints. The Contractor shall verify the
deflection at each joint by comparing the width of gaps at the top and bottom
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and each side of each joint. Gaps exceeding manufacturer's
maximum/minimum allowable limits and/or with potentially rolled or pinched
gaskets shall be corrected before the next piece of pipe is installed. If a pipe
section, which has previously been installed, is moved or dislodged in the
process of installing the next pipe section, those pipe joints which have been
previously checked and which may have been affected by the moving or
dislodging shall be rechecked. In addition, at the completion of each pipe
installation day, the Contractor shall again inspect the inside of the pipeline
installed that day for potential problems that may have developed since the
individual joint inspections. The Contractor shall correct all excessive gaps
and potential problems that may affect the passing of the leakage test before
any more pipes are installed.
B. The Inspector may participate in any or all of the alignment checks or interior
pipe inspections. The Central San's inspection, if implemented, will be for
general compliance only and will not relieve th o ractor from being fully
responsible for the overall installation qua ' n g the proper alignment,
grades, and the passing of the specified I a he Contractor shall
provide all necessary access and safety a ent t ill ssure a safe
work area and facilitate the inspection pro the I or.
C. Central San reserves the right to reje pain f pipe joints needed to
pass the specified leakage test. Su rep ay b lowed only at the
Inspector's discretion, and may re e t n ion of exterior concrete
collars designed for leakage Ie nt in ition to interior repairs, or
other approved eq . lent it meth t sure the integrity of the
pipeline for the full Ii pair o ed joints, if approved by Central
San, shall be made of e p of the specified leakage test, as
approved by Centr
D. Except as modifie this Se , all materials used in the manufacture or
installation of the p hall b sted in accordance with the requirements of
the referenced stand
E. Submittals and testing shall be done in compliance with Section 33 0130.11 -
Inspection of Sewers.
Part 2 — Products
2.1 PIPE MATERIALS
A. All pipe sizes refer to the nominal inside diameter of pipe (including any pipe
linings) and no pipe, except where specified herein, shall be more than 3/8"
smaller than the nominal size designated. All pipe, joints incorporated into the
pipe, and manufactured fittings connecting pipe between structures shall be
fabricated by one and only one manufacturer and be of the same type,
quality, class, and size unless otherwise specified or shown. Jointing of pipe
dissimilar in size and/or material shall be accomplished at structures. All field
cut pipe shall be accomplished by methods and equipment recommended by
the pipe manufacturer. No hammer and chisel cuts will be permitted. All pipe
Part VI. Technical Specifications
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and fittings delivered to the jobsite shall be properly marked by the
manufacturer with, at a minimum, the manufacturer's name, piece number,
pipe diameter, class (or D-load) and date of manufacture. All elliptically
reinforced pipe shall also be marked with a "field top" designation.
B. Reinforced Concrete Sewer Pipe with Flared or Flush Bell and Spigot Joint:
All reinforced concrete pipe and fittings shall conform to the requirements of
ASTM C 76 and as modified herein:
1. Materials shall comply with the appropriate ASTM designation under
which the subject pipe is to be manufactured, modified as specified
hereunder:
a) Cement used in the manufacture of RCP shall be Type II in
conformance with ASTM C 150.
b) No admixtures shall be introduced to oncrete mixes.
c) Rubber for gaskets shall be opr and shall comply with the
requirements of AWWA C 302.
d) Aggregates used shall consist o c, cal or combinations.
2. Design shall comply with appr ST signation under which the
subject pipe is to be manufa ed s m 'ed herein.
a) In no case shall pip s th ecified under ASTM C 76
provisions for Cla , Wall " o ". Wall "A" shall not be
accepta
b) Total concr ver inforcement at the inner wall, (clearance of
steel su r rface), nominal 1-1/2", regardless of pipe
diamete ize or t nd Iacement configuration of reinforcement.
Minimu ncrete r at the outer wall shall not be less than 1".
c) Joint desig iameter and larger pipe shall be reinforced
concrete bell and spigot incorporating a fully-retained, double rubber
gasketed joint with a '/2" diameter Schedule 40 PVC testing tube
extending from the inside of the pipe into the annular space between
the two gaskets. A removable plastic screw-in plug shall be provided to
protect the tube opening. Position of the testing tube shall be at the
spring line of the pipe.
d) RCP for tunneled installations shall be double spigot type with Type
316 stainless steel joint band. The minimum thickness of the Type 316
stainless steel joint band shall be 1/2" unless a greater thickness is
required by the Contractor for the tunnel and jacking operation.
3. PVC lined reinforced concrete pipe shall be manufactured by the vertically
cast process, utilizing stationary inner and outer forms. Vertically cast pipe
shall be wet cast, vibrated, steam cured, and shall remain in the forms for
a minimum of 6 hours. Pipe manufactured by the "Dry Cast" method is
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unacceptable. Fabrication of centrifugally spun and vertically cast pipe
shall be in accordance with AWWA C 302 and as modified herein:
a) Form oils or release agents shall not contain any material or
substances that would penetrate or otherwise retard concrete set at
the formed surface.
b) The steel forms shall be placed horizontally in a machine capable of
spinning the forms at speeds that will produce concrete meeting or
exceeding the concrete strengths required under the appropriate
ASTM standard for the subject pipe specified.
4. Pipe fabrication plant and field hydrostatic joint leakage testing shall be in
accordance with the following minimum criteria:
a) All pipes shall be subject to a D-load test by the manufacturer. Three-
edge bearing test loads shall be applied the extent that no greater
than a 0.01-inch crack is produced ' e sections.
b) Applied test loading may be termin roducing a 0.01-inch
maximum crack if or when such loa as re d 10% of that
required for and relative to the specie ad fo subject pipe.
Central San may select at ran d to specified in
ANSI/AWWA C 302. The co th a an tests shall be borne
by the Contractor. Pipe will ac nder the test requirements
specified herein when p en form to the test
requirements the m cturer I b lowed to retest 2 additional
specimens f ch men th d, and the pipe shall be
acceptable onl n a he retest specimens meet the strength
requirement
c) Fabrication nt joint age testing shall be performed in
accordance AWW 302. The pipe test pressure shall be a
minimum hea t.
5. Pipe minimum and maximum lengths, except where required otherwise
shall be in accordance with AWWA C 302.
C. The quality of materials, the process of manufacture, and the finished pipe
shall be subject to inspection and approval by Central San or its assignee.
Pipe shall be substantially free of fractures and internal surface roughness.
The ends of the pipe shall be normal to the walls and centerline of the pipe,
within the limits of variations given in ASTM C 76. Pipe shall be subject to
rejection for failure to conform to any of the specification requirements.
Central San's decision regarding rejection of the pipe shall be final and the
rejected pipe shall be immediately removed from the jobsite and replaced at
the Contractor's cost. Individual sections of pipe may be rejected for any of
the following defects:
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1. Fractures or cracks passing through the wall, except for a single end crack
that does not exceed the depth of the joint.
2. Defects that indicate proportioning, mixing, and molding not in compliance
with ASTM C 76.
3. Spigot and/or bell surface and/or dimensional irregularities which may
impede assembling the joint or affect leak tightness.
4. Surface defects indicating honeycomb, rock pockets or open texture.
5. Damaged or cracked ends where such damage would prevent making a
satisfactory joint.
6. Any continuous crack having a surface width of 0.01" or more and
extending for a length of 12" or more, regardless of position in the wall of
the pipe.
Part 3 — Execution
3.1 GENERAL
A. Sewer pipelines shall be constructed in iance requirements of
this Section and Part 1 - General.
B. Work shall meet or exceed the r ire s of a Specifications unless
applicable requirements of an nc 'urisdiction (including the terms
and conditions of an encro t mit ed by a city or county) are
greater, in which ase t eater r ire nts shall govern.
3.2 PIPE INSTALLA
A. RCP shall be in cc o ce with the Manufacturer's
recommendati and t diti al requirements of this Section.
B. Bell holes shall excava at each joint to provide full-length barrel support
of the pipe and to oint loading at the bells or couplings.
C. Pipe bedding or trench subgrade beneath the pipe shall be compacted and
graded to provide a uniform and continuous support beneath the pipe at all
points between the bell holes or pipe joints.
D. Unless otherwise required, all pipes shall be laid straight between changes in
alignment and at uniform grade between changes in grade. Where lined
reinforced concrete pipe is specified, it shall be installed with the unlined area
of the pipe circumference centered on the invert. For pipes with elliptical
reinforcement, the pipe shall be placed with the minor axis of the
reinforcement in a vertical position.
E. For standard beveled pipes where it is necessary to defect the pipe joint to
achieve the required line or grade, the amount of joint "pull" shall not exceed
the pipe manufacturer's recommendation. Pipes installed in straight lines or
grades shall have a uniform end gap all around the pipe joint.
Part VI. Technical Specifications
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3.3. PIPE DEFLECTION
Horizontal Curves shall be installed in straight pipe segments and joint deflections or
fittings in accordance with DWG 21-01. Minimum curvature radius requirements for
RCP pipe are shown on the table below. All designs of curvilinear sewers are
subject to approval by Central San.
Allowable Deflection Per Joint Segment Length Minimum Radius
1.2 Degree Joint Deflection 8'0" 400 ft.
3.4 JOINTS
A. Care shall be taken to avoid dragging the spigot on the ground or allowing it
to be damaged by contact with gravel, crushed stone, or other hard objects.
B. Joint mating surfaces shall be cleaned immediately prior to jointing.
C. After the subgrade has been prepared as specified, the rubber gaskets shall
be placed in the groove(s) on the spigot rin a t spigot end of the pipe
then centered into the bell of the adjoinin e ushed into position.
Care shall be taken to avoid twisting or c et(s) when jointing the
pipe. The inside surface of the bell, the gas roovek and the gasket(s)
shall be lubricated immediately prior to join a coy. .end
recommended by the manufacturer w ill fa e the telescoping of the
joint.
D. After the pipe joint is made, the o act sh eck proper gasket(s)
placement with a feeler gaug p ieC .y the )ipe manufacturer for such
testing. Where join ice s founa h, nproper, the tested pipe
section shall be first ve gasketko) checked for defects due to
manufacturing error, as installed if necessary, the pipe re-laid,
and the gasket(s) em ch d.
3.5 TRENCH LOAD
A. Trench load calcula sign shall reflect the following minimum
criteria:
1. Maximum trench width of 24" greater that the outside diametric dimension
(O.D.) of the pipe barrel not including bells and a backfill density relative to
that anticipated but, in all cases, not less 120 pounds per cubic foot.
2. A dead load factor not greater than1.9 for bedding shown and specified
under DWG 20-01 through 20-03.
3. Live load and impact factors relative to that anticipated but, in all cases,
not less than that produced by using AASHTO H-20 load criteria and an
impact factor of 1.5.
4. A safety factor of not less than 1.5.
- END OF SECTION -
Part VI. Technical Specifications
JJrU 16, 2022 Regular Board Meeting Agenda P ggpn p3 fflAtl 7 feinforced Concrete Pipe (RCP)
Page 203 of 297
Section 33 05 41 - Vitrified Clay Pipe (VCP)
Part 1 — General
1.1 THE REQUIREMENT
The Contractor shall furnish and install vitrified clay pipe (VCP) and all
appurtenances as specified, complete and in place, as shown on the Plans, as
specified in this Section and Section 33 31 16 - Sanitary Sewer Gravity Service
Laterals and Section 33 3100 - Sanitary Sewerage Piping.
1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 33 01 30.11 - Inspection of Sewers
B. Section 33 31 00 - Sanitary Sewerage Piping
C. Section 33 31 16 - Sanitary Sewer Gravity Service Laterals
1.3 REFERENCE SPECIFICATIONS, CODES ND STANDARDS
A. Commercial Standards:
ASTM C 12 Practice for Instal i ay Pipe Lines
ASTM C 301 Test Methods for Clay
ASTM C 700 Specification 'fled Pipe, Extra Strength,
Standard S gth Pe ed
1.4 CONTRACTOR SUBMITT S
Upon request by CentrILSan, ontra sh urnish a certified affidavit of
compliance for allpipe oth ducts erials furnished under this Section,
as specified in the refere sta S.
1.5 QUALITYASS AN
A. All pipes shall ubject t ydrostatic pressure test and a 3-edge bearing
test at the mand rer's ant.
B. All pipe and fittings s e true, circular, and concentric with the barrel of the
pipe, on a plane at right angles to the longitudinal axis of the pipe. At no point
shall the thickness of the pipe spigot be less in thickness than the shell of the
main body of the pipe. Socket ends shall be square with the longitudinal axis
and shall be true, circular and concentric with the barrel of the pipe.
C. All pipe and fittings shall have smooth interiors and shall be free from
injurious cracks, checks, blisters, broken extremities or other imperfections.
D. Pipe shall be subject to rejection for failure to conform to any specification
requirement. Central San's decision regarding rejection of the pipe shall be
final and the rejected pipe shall be immediately removed from the jobsite and
replaced at the Contractor's cost. Individual sections of pipe may be rejected
for any of the following defects:
Part VI. Technical Specifications
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1. A single crack in the pipe or fitting extending through the entire
thickness, regardless of the length of such crack; a single crack which
extends through one-fifth (1/5) of the barrel thickness and is over 2"
long. Any surface firing crack that is more than 1/32" wide at its widest
point.
2. Lumps, blisters, pits, or flakes on the interior surface of a pipe or fitting.
3. When spigot or bell of the pipe varies from a true circle more than 3%
of its nominal diameter.
4. Any piece broken from the spigot end that extends through the barrel.
5. Tramp clays, grog, or other foreign matter fused to the exterior or
interior surface of the pipe or fittings.
E. Except as modified in this Section, all materials used in the manufacture or
installation of the pipe shall be tested in ac r ith the requirements of
the referenced standards.
F. Submittals and testing shall be done in co ce ection 33 0130.11 -
Inspection of Sewers.
Part 2 — Products
2.1 PIPE AND FITTINGS
Clay pipe and fittings shall be extra ed, ss otherwise shown, and
shall conform to the requir ents TM C 0.
2.2 JOINTS
Joints in vitrified clay pipe ad using a factory-made bell and spigot
compression joint, or a c ling lis n th Approved Materials List.
Part 3 — Execution
3.1 GENERAL
A. Sewer pipelines shall be constructed in compliance with the requirements of
this Section and Section 33 31 00 - Sanitary Sewerage Piping.
B. Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency having jurisdiction (including the terms
and conditions of an encroachment permit issued by a city or county) are
greater, in which case the greater requirements shall govern.
3.2 INSTALLATION OF VCP
A. Installation of pipe shall be in accordance with ASTM C 12. Pipe laying shall
proceed upgrade with spigot ends pointing in direction of flow. After a section
of pipe has been lowered into the prepared trench, supported along the full
length of the pipe section, and immediately before joining the pipe, the ends
of the pipe to be joined shall be cleaned and the rubber gasket lubricated, all
Part VI. Technical Specifications
JA 16, 2022 Regular Board Meeting Agenda Packet- PagWfli?% A5 41 -Vitrified Clay Pipe (VCP)
Page 205 of 297
in accordance with the pipe manufacturer's written instructions. Assembly of
the pipe length shall be in accordance with the recommendations of the
manufacturer. All special tools and appliances required for joining the pipe
shall be provided by the Contractor. When cutting or machining of the pipe is
necessary, only tools and methods recommended in writing by the pipe
manufacturer and approved by Central San shall be employed.
B. All necessary precautions shall be taken to prevent uplift or floating of the
pipe prior to the completion of the backfilling operation. The Contractor shall
assume full responsibility for any damage due to this cause and shall restore
and replace the pipe to its specified condition and grade if it is displaced due
to floating.
3.3 PIPE DEFLECTION
Horizontal curve layouts shall be done as shown on DWG 21-01. Minimum curvature
radius requirements for VCP pipe are shown o t b below.
Nominal Pipe Max. Allowed Equa for r (feet) Minimum Radius of
Diameter Deflection Minimu rvature, for Pipe Len th L of:
(inches) (Degrees) (L= Pipe ) 6' 8' 10'
4 to 12 2.4 r= 24.7(L 9 144 192
15 to 24 1.8 9dB1 WW L) 128 192 256 320
27 to 36 1.2 - 4 192 288 384 480
39 to 48 0.9 r= 256 384 512 640
3.4 MANHOLES
VCP entering and leavin ho )r other structures shall have 2 standard joints
within 3 feet of the ma . O . int shall be incorporated in the manhole
base or installed imm ately a ent the manhole base and there shall not be
less than 12" betwee e 2 joint e DWG 19-05).
D OF SECTION -
Part A. Technical Specifications
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Section 33 31 00 - Sanitary Sewerage Piping
Part 1 - General
1.1 THE REQUIREMENT
A. The Contractor shall furnish all pipe, fittings, tools, materials and labor
required to install and test sanitary sewers, in accordance with these
Specifications.
B. Pipe materials and installation procedures shall be in accordance with the
pipe manufacturer's recommendations unless otherwise specified in these
Specifications.
C. For a particular sewer installation, pipe and manufactured fittings connecting
pipe between structures shall be of one and only one manufacturer's brand
and of the same type, quality, class and size.
D. Joining of pipe dissimilar in size and/or ma i e accomplished either
by use of an Expansion Block as detailed W -04, or by use of special
adapters or couplings listed on the Appro er ist.
E. Where field cuts are required, the Contrac use d/or equipment
recommended by the pipe manufactur o ha r nor chisel cuts will be
permitted.
F. All pipe and fittings delivered to h bs' h marked by the
manufacturer with such inven a d i tific i (Brand Name, Pipe Type,
Strength Class, Ba Lot, ths, et e properly identified in the
field as meeting the ire of the ecifications.
1.2 RELATED WORK D WHERE
A. Part VI Standard wings
B. Section 4 Design ria
C. Section 8 Design C
D. Section 09 90 00 - Pai nd Coating
E. Section 31 23 16 - Excavation, Bedding and Backfill
F. Section 33 01 30.11 - Inspection of Sewers
G. Section 33 05 19 - Ductile Iron Pipe (DIP)
H. Section 33 05 31.11 - Polyvinyl Chloride (PVC) Gravity Pipe
I. Section 33 31 16 - Sanitary Sewer Gravity Service Laterals
1.3 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. Commercial Standards:
ANSI/ASME B1.20. Pipe Threads, General Purpose (inch)
ANSI/AWS D1.1 Structural Welding Code
B. Codes:
Cal/OSHA Construction Safety Orders
Part VI. Technical Specifications
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1.4 QUALITY ASSURANCE
A. Pipe shall be subject to inspection at the place of manufacture. During the
manufacture of the pipe, Central San shall be given access to all areas where
manufacturing is in progress and shall be permitted to make all inspections
necessary to confirm compliance with these Specifications.
B. Except where otherwise specified, all materials used in the manufacture of
the pipe shall be tested in accordance with the applicable specifications and
standards. The manufacturer shall perform all tests at its own cost.
C. All installed pipe shall be cleaned and tested in accordance with Section 33
01 30.11 - Inspection of Sewers.
1.5 MANUFACTURER'S SERVICE REPRESENTATIVE
Where the assistance of a manufacturer's service representative is required, in order
to obtain compliance for pipe joints, supports, o s i connections, the Contractor
shall arrange for such assistance.
1.6 MATERIAL DELIVERY, STORAGE A ON
All piping materials, fittings, valves, and acces hall b ered in a clean
undamaged condition and stored off the . Al and appurtenances shall be
protected from damage by sunlight, mo' osiv terials, equipment, and
other sources. All defective or damag pipe urte ances shall be removed
from the jobsite and replaced with a Is.
Part 2 - Products
2.1 GENERAL
A. Pipes, fittings, na shall be furnished in accordance with the
requirements a app e S ction for the particular pipeline material
being used an e Appro aterials List.
B. See Subsection ditional requirements.
C. Referenced pipe sizes are nominal pipe diameters.
D. Application of pipe coatings shall be in accordance with the requirements of
the applicable Section of these Specifications for the particular pipe material
being used and Section 09 90 00 - Painting and Coating.
2.3 WYES
Sewer lateral bends shall be made with sewer Combination Wye and (1/8) Bends —
not with sanitary tees.
Part 3 - Execution
3.1 GENERAL
A. Line & Grade: Sewer pipelines shall be constructed to the alignment and
grade shown on the Plans, and in compliance with these Specifications.
Part VI. Technical Specifications
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A. Clearances: Clearance from other utilities and improvements shall comply
with Subsection 8-07.
B. Material/Cover: Pipe material and cover shall comply with Subsection 8-08.
C. Surveying: The grade line shall be established by setting cut stakes in
compliance with Section 11-03 before trench excavation is started. During
pipe installation, the Contractor shall continuously utilize an industrial-
standard laser grade control system to confirm that the pipe is installed to the
design grade, subject to the following requirements:
1. The Contractor shall provide a properly calibrated laser instrument and an
operator who is qualified and trained in the operation of the particular laser
instrument being used.
2. Laser control points shall be established benchmarks or construction cut
stakes identified on the approved cut sheet
3. Laser shall contain a direct grade rea sc which will allow the
Inspector to verify the grade at all tim
3.2 INSTALLATION
A. General
1. Sewer pipelines shall be laid u ade a po t-of-connection to the
existing sewer with the bell d t pg nd of each pipe length.
2. Sewer pipes, br ches, s, or o o ends which are not to be
immediately con d, be plu r capped.
3. Where it becom sa odify the design pipe alignment to
resolve conflict e C cto all propose a revised alignment to the
Inspector who y allow i Ilation per the revised alignment or may
require that the sion b mitted to the Job Engineer for
consideration. Su may be made by the deflection of joints, by
the use of fittings or by orced bending of the pipe if permitted, however, in
no case shall the deflection in the pipe or at any joint exceed the
maximum deflection recommended by the pipe manufacturer.
4. The Contractor shall take all necessary precautions to prevent excavated
or other foreign material from getting into the pipe during the laying
operations. At all times when laying operations are not in progress and at
the close of the day's work, the openings of all pipe and specials, whether
in the trench or in storage, shall be protected with suitable bulkheads to
prevent unauthorized access by persons, animals, water, or any
undesirable substance.
B. Open-Cut:
1. Pipe shall not be laid when the Inspector determines that the condition of
the trench is unsuitable.
Part VI. Technical Specifications
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2. If the sewer is to be laid in an area that is to be filled, and the cover prior
to filling is less than the required minimum cover specified pipe material
and type, the pipe shall not be laid until the area has been properly filled
and compacted to a level at least equal to required minimum cover above
the proposed pipe, unless otherwise authorized by the Inspector.
3. If field conditions in areas that are potentially unstable or subject to
settlement warrant, the Inspector may require that the Contractor
substitute a different pipe material/type for the pipe shown on the Plans.
4. Pipe, fittings, and appurtenances shall be carefully handled and protected
against damage, impact shocks, and free fall. Pipe shall be stored in a
manner which will protect it from damage at the trench site or elsewhere.
The Contractor shall inspect each pipe and fitting prior to installation to
determine that only undamaged material is installed.
5. Before placement of pipe in the trenc h ipe or fitting shall be
thoroughly cleaned of any foreign to nd shall be kept clean at all
times thereafter.
6. Non-marring slings shall be used fo ing e th of pipe into the
trench (chains shall not be used he pi all b id on properly
compacted bedding material ed i tion 3123 16 -
Excavation, Bedding and B ill. kin ill be permitted, and the
pipe shall have full beari its it th between bell holes
excavated in said bedic mate to vent point loading at the bells or
couplings aall r unob ssembly of all joints. Excavation
shall be made iee utside normal trench section at field joints
to permit ade cce the joints for field connection operations and
for applicati c o joints. Afterjointing is completed, bell
holes shall backfill ith properly compacted bedding material, taking
care not to age, m , or lift the pipe from its bedding support.
7. The Contracto vent the pipe from floating during and after its
installation.
8. Warning Tape Installation: See Section 3123 16 - Excavation, Bedding
And Backfill for warning tape requirements.
C. Alternative Installation Methods: Unless otherwise indicated on the Plans,
sewers shall be installed by the open-cut method. Alternate methods of
installation may be proposed by the Applicant during the permit application
process and subject to the following:
1. Horizontal Directional Drilling (HDD)
a) Marked utilities within 10' of centerline shall be potholed.
b) Cut stakes shall be placed at 20-foot intervals along the proposed
centerline of the pipe alignment.
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c) The installed pipeline shall be within 6" horizontal and 1" vertical of the
alignment indicated in the Plans at all locations. In addition, for gravity
sewers the pipeline shall be free draining throughout.
2. Boring and Jacking
a) The annular space between the carrier pipe and the casing shall be
filled with grout or silica sand.
b) Marked utilities within 10' of centerline shall be potholed.
3. Pipe Bursting
a) Marked utilities within 10' of centerline shall be potholed.
b) The Contractor shall fully expose the main sewer where a lateral is to
be replaced to within 4' of its point-of-connection to the main sewer, so
that the point-of-connection can be insp ed
c) When the Contractor proposes to thr ends greater than 45),
the existing pipe shall be exposed a um radius of 2 feet
at bends. Realigned pipe shall be pr bed backfilled in
accordance with Section 31 23 16 - xc on, ng and Backfill
after bursting.
d) The pipe shall be pulled a mu et b yond the planned
connection to allow ins ti of co n of the pipe (e.g., for
scarring or other da and r ov f approximately 4" where
bulging occ rou bursts
e) Connections t ng in insertion and receiving pits shall
employ fittin r ings d in the Approved Materials List. Prior
to making nection ac h end of an installed reach of pipe with
fittings or c ings, th ntractor shall allow a minimum of 6 hours to
elapse to all e lax from the tension resulting from pulling the
pipe and for the equalize with ambient ground temperature.
4. Cured-In-Place Pipe (CIPP)
a) The Contractor shall obtain a Central San Special Discharge Permit if it
proposes to discharge CIPP process wastewater to the public sewer
system. Process wastewater shall not be discharged to storm drains,
gutters watercourses, swales, impoundments or onto the ground.
3.3 CONNECTIONS TO EXISTING SEWERS
A. Connections shall be made in compliance with Subsection 8-06.
B. Existing sewers are shown on the Plans at the locations where new sewers
are to be connected. It is the responsibility of the Contractor to determine the
exact location and depth of the existing sewers prior to the installation of any
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sewer pipe. New pipe shall be plugged with mechanical plugs until further
connection is necessary.
C. Connection of new main and/or trunk sewers to existing lines up to and
including 48" in diameter shall be made at existing manholes or by
constructing a new manhole over the point-of-connection, or by removing an
existing rodding inlet or plug and extending new pipe of the same diameter,
material and class from the point-of-connection.
1. Where the connection is to be made into an existing manhole, the
Contractor shall make the connection by core-drilling through the manhole
shelf to the existing channel, installing the new pipe, finishing a new
channel within the manhole and repairing any damage to the structure.
2. Where the connection is to be made by constructing a new manhole on an
existing sewer, the manhole and new co nection shall conform to the
details shown in DWG 19-01 throug 1 le existing sewer shall be
kept intact until immediately befor cl g and flushing operation for
the new sewer is to begin.
3. Where the connection is to be mad emov ing inlet or plug,
the existing piping shall be cut s re a ds pr erly prepared for the
connection shown and an air sh installed at the connection
of new and existing pipeline
4. All new pipe shall bepl e i n a ed mechanical plug and
mortar until t line i plete nd dy for testing.
D. Side Sewer Conn ns in Sew s: See Section 4-05 and Section 33
31 16 - Sanitary ra ervice Laterals.
3.4 REPAIRS TO STIN E WERS AND MAINS
A. Repairs to mai veers a unk sewers 16" or less in diameter shall be
made using pipe specified in Section 33 05 19 - Ductile Iron Pipe
(DIP), or Section 33 1.11 - Polyvinyl Chloride (PVC) Gravity Pipe.
B. When repair of a damaged section of pipe is required within 18" of a pipe
joint, the replacement section shall extend to and include the joint.
C. Where repair couplings are permitted, only couplings listed in the Approved
Materials List shall be used.
D. The Inspector may require replacement of broken, damaged, or improper pipe
or fittings discovered during sewer repair or replacement work.
3.5 REPAIRS TO NEW MAIN SEWERS
A. If damage to the new main sewer pipe is identified during inspection, testing
or televising, the Contractor shall repair the damage or replace the pipe as
instructed by the Inspector. When repair of a damaged section of pipe is
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required within 18" of a pipe joint, the replacement section shall be extended
to include the joint. Repair procedures shall comply with the following:
1. VCP and DIP MAIN SEWERS — Manufacturer's recommended couplings
shall be used. The damaged pipe shall be removed by squarely cutting out
the damaged section. The replacement pipe shall be squarely cut
approximately 1/2" shorter than the missing section. The repair couplings
shall be placed onto the pipe ends, the replacement assembly inserted
into the gap, the repair couplings moved to be centered over each new
joint, and the fasteners or bands tightened as required.
2. ABS TRUSS and PVC TRUSS MAIN SEWERS - A standard chemically
welded coupling strap is required for each joint. Use a narrow-bladed saw
to cut each coupling strap at a 45° angle to the centerline of the pipe and
deburr the edges of the cuts. The replacement pipe shall be a minimum of
2 feet in length, shall be squarely cut appro ' ately '/2" shorter than the
removed section, and its ends shall be ith the 4 coupling
straps placed loosely on the edges of ch r oint, apply primer and
cement to the inside of the coupling st th tside of the pipe ends
at each joint. Center the coupling strap joint the cut upward.
Tighten the straps around the coupling all the c ing to slide such
that there is a tight fit around the VC Finally, dip fiberglass
tape into primer and lay over th t a ce t over the strip. Do
not apply test pressures intern or a for 16 hours, proceed with
Paragraph B immediately.
3. PVC MAIN SE S - double air couplings shall be used.
The damaged pip II b oved by squarely cutting out the damaged
section, and the a hall be beveled. The replacement pipe
shall be a mini m of t in gth and shall be squarely cut
approximately shorter the missing section, and its ends shall be
beveled. Refer e lines ' Gating the spigot stab distance required for
centering the rep g shall be clearly marked on all cut ends. The
repair couplings shall be placed onto the pipe ends, the replacement
assembly inserted into the gap, the repair couplings moved to be centered
over each new joint.
B. The Contractor shall re-bed the pipe and backfill the excavation with properly
compacted bedding and backfill material in accordance with Section 31 23 16
- Excavation, Bedding and Backfill.
- END OF SECTION —
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Section 33 31 16 - Sanitary Sewer Gravity Service Laterals
Part 1 - General
1.1 THE REQUIREMENT
A. The Contractor shall furnish all pipe, fittings, tools, materials, and labor
required to install and test sanitary sewer laterals, in accordance with these
Specifications.
B. Pipe materials and installation procedures shall be in accordance with the
pipe manufacturer's recommendations unless otherwise specified in these
Specifications.
C. For a particular sewer installation, pipe and manufactured fittings connecting
pipe between structures shall be of one and only one manufacturer's brand
and of the same type, quality, class and size.
D. Joining of pipe dissimilar in size and/or t all be accomplished either
by use of an Expansion Block as deta' in 21-04, or by use of special
adapters or couplings listed on the Ap Is List.
E. Where field cuts are required, the Cont hall u s and/or equipment
recommended by the pipe manufa . No mer and chisel cuts will be
permitted.
F. All pipe and fittings delivered to e j it be marked by the
manufacturer with such in o a Iden tion (Brand Name, Pipe Type,
Strength Class, tch engths to be properly identified in the
field as meeting qui nts of Specifications.
1.2 RELATED WO FI SEWHERE
A. District Code 5
B. Section 4 Desi riteria
C. Subsection 17-1 a Wastewater
D. Part VI Standard D s
E. Section 33 01 30.11 - Inspection of Sewers
F. Section 33 05 16 - Cast-Iron Pipe (CIP)
G. Section 33 05 19 - Ductile Iron Pipe (DIP)
H. Section 33 05 31.11 - Polyvinyl Chloride (PVC) Gravity Pipe
I. Section 33 05 33.13 - High Density Polyethylene (HDPE) Pipe
J. Section 33 31 00 - Sanitary Sewerage Piping
1.3 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
Contra Costa Environmental Health Division
1.4 QUALITY ASSURANCE
A. Except where otherwise specified, all materials used in the manufacture of
the pipe shall be tested in accordance with the applicable specifications and
standards. The manufacturer shall perform all tests at its own cost.
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B. All installed pipe shall be cleaned and tested in accordance with Section 33
0130.11 - Inspection of Sewers.
Part 2 - Products
2.1 GENERAL
A. Pipes, fittings, and appurtenances shall be furnished in accordance with the
requirements of the applicable Section for the particular pipeline material
being used and the Approved Materials List.
B. See Subsection 4-03 for additional requirements.
C. Referenced pipe sizes are nominal pipe diameters.
D. All side sewers materials shall be new, free from defects, and marked to
identify manufacturer, material, class, and other appropriate information.
2.2 BANDED COUPLINGS
Where banded couplings are used for joining of pi repair of existing
pipelines, only couplings listed in the Approved s L all be allowed.
2.2 OVERFLOW PROTECTION DEVICES (O
A. Overflow Protection Devices (OPD) bo hall be as listed in the
Approved Materials List and as sh on 22-
B. Utility boxes over OPDs in are s e ve ar traffic shall be rated for
H-20 traffic service.
C. Utility boxes over O hal itted wi grate lid and box extensions, if
required to provide p lear S.
Part 3 - Execution
3.1 GENERAL
A. Structures shall be d nd installed in compliance with Subsection 4-
09.
B. When performing work on side sewers, the Contractor shall bypass wastewater
around the work area in accordance with the requirements of Subsection 17-
15, or shall arrange with the Property Owner to temporarily shut down the side
sewer. The Contractor shall ensure that no wastewater is discharged from side
sewer to the excavation.
C. Minimum pipe slope shall conform to Subsection 4-03. Wherever available
slope is less than 2% or the length of the side sewer is greater than 100 feet,
the side sewer shall be installed using an industrial-standard laser grade
control system to confirm that the pipe is installed to the proper grade.
Requirements for operation of the laser grade control system shall be as
specified Section 33 31 00 - Sanitary Sewerage Piping.
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D. When an existing building that is sewered by a septic tank is to be connected
to the Central San public sewer system, the new side sewer shall be installed
in accordance with these Specifications. A cleanout and Overflow Protection
Device shall be installed at the building. The existing sewer from the building
to the septic tank may be used as part of the new side sewer for the building if
it:
1. is of a material listed on the Approved Materials List;
2. is a minimum of 4" in diameter;
3. passes a hydrostatic or low-pressure air test; and
4. passes a CCTV inspection.
E. Removal of septic tanks after installation of a new side sewer connection to
the Central San public sewer shall be inac rdance with the requirements of
the Contra Costa Environmental Health iv
F. When a building connected to Central n wer is to be demolished,
an abandonment permit shall be obtain d th sewer serving the
building shall be temporarily disconnec cap p e property or
easement boundary.
3.2 OVERFLOW PROTECTION D E
A. All Property Owners shall i al d in OPD on any side sewer that
is connected, or is intend r con ctio , the Central San sewer system
(see also Distri de ).
B. Side Sewer Installs or ations or Repairs: No person shall install,
alter or repair a th onnected, or is intended for connection to
the Central Sa we s w out installing an OPD of the type and in the
manner prescri in thes ecifications. Prior to installation of coupling
when repairing ew a maximum spacing of 1/4" shall be left between
the pipe ends to a roper installation of coupling. See DWG 22-08 for
side sewer repair details.
C. Maintenance Requirements: OPDs shall be maintained so as to provide for
their continuing function as designed. OPDs shall be accessible at all times
and shall be kept free from any obstructions including, but not limited to,
rocks, soil, vegetation, grass, trees, bushes, plants, landscaping, concrete,
asphalt or other ground coverings that may impair the function of and
accessibility to the devices.
D. Elevation Requirements: OPDs shall be installed at an elevation that protects
the property from damage. The Property Owner is responsible to either (1)
confirm that the backwater overflow prevention device is at the proper
elevation; or (2) to obtain competent assistance from a licensed plumber or
Contractor to confirm its proper elevation. If any subsequent modification of
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the property results in the OPD being at an improper elevation, the Property
Owner or Contractor shall adjust the OPD to the proper elevation.
E. Installation of extendable backwater overflow devices shall be determined by
Inspector for the given field conditions.
3.3 INSTALLATION
A. General
1. Sewer pipelines shall be laid upgrade from the point-of-connection to the
existing sewer with the bell end at the upgrade end of each pipe length.
2. Sewer pipes, branches, stubs, or other open ends which are not to be
immediately connected, shall be plugged or capped.
3. Where it becomes necessary to modify the design pipe alignment to
resolve conflicts, the Contractor shall propo a revised alignment to the
Inspector who may allow installation p e d alignment or may
require that the revision be submitted he gineer for
consideration. Such revision may be m th lection of joints, by
the use of fittings or by forced bending ipe i ed, however, in
no case shall the deflection in the pi or at oint a eed the
maximum deflection recommend pip ufacturer.
4. The Contractor shall take all ne ssa tions to prevent excavated
or other foreign material fir in to t pe during the laying
operations. At al Imes layin er ns are not in progress and at
the close of the wo a ope f all pipe and specials, whether
in the trench or in e, be protected with suitable bulkheads to
prevent unauth ss rsons, animals, water, or any
undesirable su ance.
B. Lateral Sewer Loc
1. Prior to a Sewer Permit passing the final inspection, the lateral
stub-outs to the properly line shall be accurately marked by the
Contractor.
2. Prior to installation of lateral sewers in subdivisions, the lot corner nearest
the side sewer and the lateral sewer terminus shall both be staked and
flagged in the field. Where curbs, gutters and/or sidewalks exist or are to
be a part of an improvement, the location of each lateral sewer shall be
permanently marked by imprinting an "S" (1-1/2" size) or by chiseling an
"S" (4" size) in the concrete surface vertically above the lateral sewer pipe.
The "S" shall be marked on the curb, gutter or on the sidewalk.
C. Open Cut:
1. Pipe shall not be laid when the Inspector determines that the condition of
the trench is unsuitable.
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2. If the sewer is to be laid in an area that is to be filled, and the cover prior
to filling is less than the required minimum cover specified pipe material
and type, the pipe shall not be laid until the area has been properly filled
and compacted to a level at least equal to required minimum cover above
the proposed pipe, unless otherwise authorized by the Inspector.
3. If field conditions in areas that are potentially unstable or subject to
settlement warrant, the Inspector may require that the Contractor
substitute a different pipe material/type for the pipe shown on the Plans.
4. Pipe, fittings and appurtenances shall be carefully handled and protected
against damage, impact shocks, and free fall. Pipe shall be stored in a
manner which will protect it from damage at the trench site or elsewhere.
The Contractor shall inspect each pipe and fitting prior to installation to
determine that only undamaged material is installed.
5. Before placement of pipe in the trenc h ipe or fitting shall be
thoroughly cleaned of any foreign to nd shall be kept clean at all
times thereafter.
6. Non-marring slings shall be used fo ing e th of pipe into the
trench (chains shall not be used he pi all b id on properly
compacted bedding material ed i tion 3123 16 -
Excavation, Bedding and B ill. kin ill be permitted, and the
pipe shall have full beari its it th between bell holes
excavated in said bedic mate to vent point loading at the bells or
couplings aall r unob ssembly of all joints. Excavation
shall be made iee utside normal trench section at field joints
to permit ade cce the joints for field connection operations and
for applicati c o joints. Afterjointing is completed, bell
holes shall backfill ith properly compacted bedding material, taking
care not to age, m , or lift the pipe from its bedding support.
7. The Contracto vent the pipe from floating during and after its
installation.
8. Warning Tape Installation: To mark the location of side sewers,
electronically detectable marking tape shall be installed one foot below
subgrade from the main sewer end of each side sewer to the connected
building. See Section 3123 16 - Excavation, Bedding And Backfill for
warning tape requirements.
D. Alternative Installation Method Requirements: Unless otherwise indicated on
the Permit, side sewers shall be installed by the open-cut method. Alternate
methods of installation may be proposed by the Applicant during the permit
application process and subject to the following:
1. Section 4 Design Criteria for side sewers
2. Horizontal Directional Drilling (HDD)
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a) Marked utilities within 10' of centerline shall be potholed.
b) Cut stakes shall be placed at 20-foot intervals along the proposed
centerline of the pipe alignment.
c) The installed pipeline shall be within 6" horizontal and 1" vertical of the
alignment indicated in the Plans at all locations. In addition, for gravity
sewers the pipeline shall be free draining throughout.
3. Boring and Jacking
a) The annular space between the carrier pipe and the casing shall be
filled with grout or silica sand.
b) Marked utilities within 10' of centerline shall be potholed.
4. Pipe Bursting
a) Marked utilities within 10' of centerli s potholed.
b) The Contractor shall fully expose t r where a lateral is to
be replaced to within 4' of its point-o necti th main sewer, so
that the point-of-connection can be d.
c) When the Contractor propose thro ends greater than 45),
the existing pipe shall be ex ed w a imum radius of 2 feet
at bends. Realigned pipe s be p edded and backfilled after
bursting.
d) The pipe sh pu minim feet beyond the planned
connection to ins on of the condition of the pipe (e.g., for
scarring or o ge removal of approximately 4" where
bulging occ arou e b ing head.
e) Connection existin es in insertion and receiving pits shall
employ fitting gs listed in the Approved Materials List. Prior
to making conne at each end of an installed reach of pipe with
fittings or couplings, the Contractor shall allow a minimum of 6 hours to
elapse to allow pipe to relax from the tension resulting from pulling the
pipe and for the pipe to equalize with ambient ground temperature.
3.4 POINT-OF-CONNECTION TO MAIN SEWERS
A. Connections shall comply with Subsection 4-05.
B. Side sewer connections where wyes, tees or laterals were not installed during
main sewer construction, shall be made by installing a tap listed in the
Approved Materials List, installing a main sewer repair spool (replacement
pipe section) as specified in Paragraph 3.5 below, including a new wye
branch or tee fitting, or by core drilling through an existing manhole at the top
of the shelf or crown of the main/trunk sewer pipe. Installation of taps shall
comply with the following requirements:
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1. Only pre-qualified Contractors shall be permitted to install tap and saddle
connections on VCP, CIP, DIP, RCP, PVC-Truss or ABS-Truss.
2. Before commencing excavation for tap installation, the Contractor shall
have sufficient Type I bedding and backfill material at the site to properly
re-bed the main and lateral sewers, and then backfill the excavation.
3. The excavation for the tapping work shall be a minimum of 2 feet in width,
give enough length for workspace, without under-cut sides and shall be
properly shored. A minimum clearance of 3" below, 6" on each side and
12" each way along the main from the point-of-connection shall be
provided for tap installation.
C. If the main sewer is damaged during excavation for or during installation of
the tap, the Contractor shall install a main sewer repair spool (replacement
pipe section) as specified in Section 33 31 00 - Sanitary Sewerage Piping,
including a new wye branch or tee fittin
D. The outer surface of the main in this a ose shall be thoroughly
cleaned prior to tapping.
3.5 REPAIRS
A. Repairs to side sewers shall con f WG 8 and be made using pipe
and fittings specified in:
1. Section 33 05 19 - Duc ' Ir P' (DI
2. Section 33 1.11 Iyvinyl (PVC) Gravity Pipe
3. Section 33 05 - H ensity Polyethylene (HDPE) Pipe
4. Section 33 16 - Iron e (CIP)
B. When repair of amage tion of pipe is within 18" of a pipe joint, the
replacement sec tend to and include the joint.
C. Where repair couplings are permitted, only couplings listed in the Approved
Materials List shall be used.
D. The Inspector may require replacement of broken, damaged, or improper pipe
or fittings discovered during sewer repair or replacement work.
3.6 TESTING AND TELEVISING
Laterals installed with a Sewer Extension Permit shall be tested as a part of the main
sewer system in accordance with the requirements of Section 33 0130.11 -
Inspection of Sewers. New building sewers and side sewer repairs shall be subject
to low-pressure air or hydrostatic testing or CCTV inspection at the discretion of the
Inspector.
- END OF SECTION -
Part VI. Technical Specifications
Section 33 31 16 - Sanitary Sewer Gravity Service Laterals
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Section 33 31 26 - Multiple-User Low Pressure Sewer Systems (MULPSS)
Part 1 - General
1.1 THE REQUIREMENT
A. The Contractor shall furnish all pipe, manholes, flushing inlets, valves, fittings,
other appurtenances, tools, materials, and labor required to install and test
multiple-user low-pressure sewer systems (MULPSS), in accordance with the
requirements of the Plans and this Section.
B. Extension of MULPSS shall be subject to the same rules, requirements and
procedures as apply to extensions of the public gravity main sewers.
C. Individual lot pumping systems (ILPS) connected to MULPSS shall conform to
Section 33 32 26 - Individual Lot Pumping Systems and in addition shall:
1. Utilize "grinder" pumps with nearly vertical mp curves (semi-positive
displacement type pumps) discharging 20 gpm;
2. Incorporate a redundant curb stop (is 'o nd check valve at
each connection to a MULPSS, in addi the in and check
valves installed at the ILPS;
D. Connections to the MULPSS shall b nho specified in DWG 24-
02.
1.2 RELATED WORK SPECIFIE RE
A. Part VI Standard D Ings
B. Section 33 32 26 - I ua umpi stems
C. Section 33 05 31.11 - my ride (PVC) Gravity Pipe
D. Section 33 05 33.1 i nsi lyethylene (HDPE) Pipe
1.3 CONTRACTOR S MITTAL
Upon request by Central S e tractor shall submit catalog cuts and/or shop
drawings for any proposed components not listed in the Approved
Materials List.
1.4 QUALITY ASSURANCE
Leakage Test: After closing the isolation valves at each individual lot connection and
fitting the lowest flushing inlet with a liquid filled pressure gauge having a full-scale
reading of 160 psi, the multi-user low-pressure sewer shall be filled with water and
pressurized with compressed air at its high point until the pressure gauge reads 100
psi (air-over-water). The pressure shall be allowed to stabilize for a period of at least
5 minutes immediately preceding a minimum 15-minute test period. There shall be
no pressure drop during the test period.
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Part 2 - Products
2.1 GENERAL
All equipment and accessories shall be standard manufactured items and shall be
specifically manufactured for sewage use by a company regularly engaged in the
manufacture and assembly of pumping system components.
Typical materials list for a MULPSS:
Item Description
1 1 5/8" X 1 5/8" Unistrut P1000T-HG Pipe Supports, Or Equal: Fastened to Concrete
Floor With 1/2" Zinc Plated Expansion Anchors (3" embedment-2 each strut) and
Attach Pipes to Struts with "Crush-A-Clamp"Assemblies (Unistrut Part No. 027NO32
for 11/4", or equal).
2 1 5/8"X 1 5/8" X 16" Unistrut P1000T-HG Pipe Supports, or equal: Fastened to
Concrete Floor with 1/2" Zinc-Plated Expansion Anchors (3" embedment-2 each strut)
And Attach Pipes to Struts with "Crush-A-Clamp" ssemblies (Unistrut Part No.
027NO32 for 11/4". Part No. 030N034 for 11/ ", 038n044 for 2", or equal);
Thrust Restraint Struts: Attach to Adjacent S Struts with Angle Fittings and
Channel Nuts.
3 11/4" Compression (BN5)X 11/2" FIPT, M gs hite Collet& Red Insert, or
equal
4 TW#10 Copper Tracer Wire, Extend to TerryTinalqWd in e3ffiWanhole.
5 11/2"X 11/2"X 11/2" Schedule 80 PV X F FIPT , orequal
6 60" Diameter X 36" Precast Manho se, ast- ce Base and 60" Diameter
X 24" Precast Manhole Barrel.
7 Black HDPE 3408, IPS OD, As"
16 i): -hevron Phillips Performance
Pipe Municipal & Industrial or a I.
8 60" Diameter X " Prec anhole I
9 60" Diameter C tric er Slab
10 24" Diameter X 3" st G in
11 Tracer Wire Ter d (Se tail 11/2" True Union PVC Combination
on DWG 24-0 Check Valve, Valve/Ball Valve Flow
12 1 1/2"True U PVC Sw eck Control P/N 2200-15TU, or equal
Valve FIPT X
13 Tracer Wire Ter oa ee Detail on DWG 24-04).
14 1 1/4" MIPT X 1" Reducing Bushing
15 1" Brass Ball Valve with Stainless Steel Handle FIPT X FIPT
16 11/2" Schedule 80 PVC Pipe Nipples, MIPT X MIPT T
2.2 PIPES AND FITTINGS
A. Casing pipe and fittings shall be C900 PVC (DR-14) of the size indicated on
the Plans, conforming to Section 33 05 31.11 - Polyvinyl Chloride (PVC)
Gravity Pipe.
B. Pressure sewer pipe shall be HDPE (SDR-11) of the size indicated on the
Plans, conforming to Section 33 05 33.13 - High Density Polyethylene
(HDPE) Pipe.
C. Brass pipe and threaded fittings shall be 1" diameter Schedule 40 NPS.
Part VI. Technical Specifications
June 1 ,c ��231 �u�a6r � e�tY�f�tAogv&ftSVNgeYe\Krg�)6gn3f�RLPSS) 197
Page 222 of 297
2.3 VALVES
A. Isolation Valves shall be true union ball valves of the size indicated on the
Plans, fabricated from PVC rated for 150 psi service at 75°F.
B. Check Valves shall be true union flap check valves of the size indicated on
the Plans, fabricated from PVC rated for 150 psi service at 75°F.
C. Combination Isolation/Check Valves shall be a combination true union ball
valve and flap check valve of the size indicated on the Plans, fabricated from
PVC rated for 150 psi service at 75°F.
D. Bronze ball valves shall be 1" diameter, FIPT x FIPT, rated for a maximum
working pressure of 600 psi WOG (water, oil, gas), having chromium plated
balls and PTFE (Teflon) seats.
2.4 MANHOLE COMPONENTS
A. Precast manhole components shall be as ' Approved Materials List
and as shown in DWG 24-02 through 24-
B. Standard manhole frames and covers shal s list t Approved
Materials List.
2.5 TRACER WIRE AND TERMINAL B
A. Tracer wire shall be TW #10 copp
B. Terminal Boards for tracer wi hall abri ted from three-eighths (3/8)
inch HDPE sheet a 3/16" eter b chine screws, washers and
knurled nuts.
2.6 FLUSHING NOZZ N
A. Pressure gauges II be gl -fil ed having stainless steel cases, brass
internal componen '4" NPT s and 2" diameter dials having maximum
range of 300 psi an uations, Grainger Stock Number 5WZ52, or
equal.
B. Pressure relief valves shall have bronze bodies, stainless steel ball valves, 1"
MNPT inlet ports, 3/4" right angle FNPT outlet ports, adjustable outlet pressure
from 0 to 400 psi and maximum outlet flow of 4 gpm; Dayton Model Number
3YB67, or equal.
Part 3 - Execution
3.1 GENERAL
A. Casing pipes and structures (manholes and flushing inlets) for MULPSS shall
be installed in accordance with the requirements of these Specifications
pertaining to installation of gravity sewers, except where otherwise required in
this Section.
Part VI. Technical Specifications
JJ&16, 2022 Regular Board ffetp% A�J�& M&gJe-pg6&�M gf@IsAure Sewer Systems (MULPSS)
Page 223 of 297
B. Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency having jurisdiction (including the terms
and conditions of an encroachment permit issued by a city or county) are
greater, in which case the greater requirements shall govern.
3.2 INSTALLATION OF PRESSURE MAIN SEWER
A. After installing the casing pipe and manhole bases, pull HDPE pressure main
sewer pipe of the size indicated on the Plans into the casing.
B. The Contractor may pull more than one reach of adjacent HDPE pressure
main sewer pipe of the same size through intermediate manholes.
3.3 PLUMBING AT MANHOLES
A. Plumbing for pressure main sewers and laterals shall be configured and firmly
attached to galvanized metal struts as shown on the Plans and in DWG 24-02
through 24-05.
B. At most, 4 private pressure lateral se s s connected to the public
pressure main sewer at each manhole. ecti es shall be located as
near to the center of the manhole as is al to adequate space
for initial assembly and disassembly/assem r fut aintenance.
3.4 TRACER WIRE
A. Pull tracer wire into pipe casing e st the HDPE pressure main
sewer in the casing.
B. Terminate the t wir a ter and at each manhole. Test each
tracer wire for con a stallation.
3.5 FLUSHING IN BL
The Contractor shall i all a flus inlet assembly as shown on DWG 24-03 at
each Flushing Inlet sh on th ans.
- END OF SECTION -
Part VI. Technical Specifications
June ��23 �U��r � e�t�r��t oggr�jgV ke�ep%�)gjbrBf JWLPSS) 199
Page 224 of 297
Section 33 32 26 - Individual Lot Pumping Systems
Part 1 - General
1.1 THE REQUIREMENT
A. Design and construction of private individual lot pumping systems shall be in
conformance with applicable Cal/OSHA regulations, electrical, plumbing, and
building codes, and the requirements of this Section.
B. Pumping systems for single residential units may be either simplex (single
pump) or duplex (two pumps). Systems to serve multiple residential units or
nonresidential uses service shall be duplex systems (two pumps).
C. Flow Rates: Pumping systems shall produce a velocity in the pressure sewer
(force main) of 3 to 7 ft/s when pumping against the non-surcharged head at
sump Low Water Level (LWL).
1. Connection to House Plumbing: Syste c d to the house
plumbing shall employ grinder pumps t di a at a maximum flow
rate of 30 gpm.
2. Connection to Side Sewer: Systems co to si ers shall
discharge at a maximum flow rate pm.
1.2 RELATED WORK SPECIFIED EL H
A. Part VI Standard Drawings
B. Section 4 Design Criteria
C. Section 03 30 00 - t-In- Conc
D. Section 03 34 13 - C Iled -Streng Material (CLSM)
E. Section 33 05 31.11 yl ide (PVC) Gravity Pipe
F. Section 33 05 33. High sit lyethylene (HDPE) Pipe
1.3 CONTRACTOR S ITTAL
A. The Contractor shall omplete Individual Lot Pumping System
Application including manu acturer's Specifications for pumps, electrical
controllers, sumps, and alarms to Central San and receive favorable review
prior to purchasing any pumping system components or commencing
construction work.
B. The Contractor shall submit a copy of the electrical permit signed off as
approved by the local building code enforcement agency to the Inspector prior
to startup testing of the pumping system.
1.4 QUALITY ASSURANCE
A. Leakage Test: After closing the isolation valve at the pump station, the pump
discharge pressure sewer shall be filled with water and pressurized with
compressed air to 150% of the operating pressure or 60 psi, whichever is
greater, at its point-of-connection to the gravity sewer system (air-over-water).
The pressure shall be allowed to stabilize for a period of 5 minutes
Part VI. Technical Specifications
JRP 16, 2022 Regular Board Meeting Agenda PaAfc �%J�P771lndividual Lot Pumping Systems
Page 225 of 297
immediately preceding a 10-minute test period. To pass the test, there shall
be no pressure drop during the test period.
B. Electrical Permit and Inspection: The Property Owner or the Contractor shall
obtain an electrical construction permit for the electrical control and alarm
work from the local building code enforcement agency and shall show
evidence of favorable inspection of the system prior to functional testing of the
pumping system.
C. Functional Test: When the pumping system installation is complete and
favorable inspection of the electrical work has been obtained, the Contractor
shall call Central San's Inspector for functional testing of the system. The
Contractor shall arrange for a supply of water for use in the functional testing.
The Inspector will witness the Contractor's operation of the system during the
functional test, which shall include running through more than one normal
automatic pumping cycle; hand (manual) s ' ching of pumps; alternation of
pumps in duplex systems; activation, si c resetting of alarms (visual
and audible); and activation of all oth it d system features.
Part 2 - Products
2.1 GENERAL
All equipment and accessories shall be an ured items and shall be
specifically manufactured for sewage by any egularly engaged in the
manufacture and assembly of pu n y c ents.
2.2 PUMPS
A. Pump systems sh re d by entral San. Pumps shall be approved
for residential se rvic a Nationally Recognized Testing Entity
(NRTE) such a nde rs L ratories (UL Listed) and/or Canadian
Standards Ass 'ation (C and shall carry a certification label for this use,
and shall be on the ty described below:
1. Submersible, ce al, non-clog pumps: Impeller shall be a non-clog
type and shall be capable of passing a 2" sphere. The pump discharge
shall be at least 2" in diameter.
2. Submersible, centrifugal or positive displacement grinder pumps: The
grinder pump shall be constructed of long-lasting, low maintenance
material that is capable of reducing all components in normal domestic
sewage (including "foreign objects", such as paper, wood, plastic, glass,
rubber, etc.) to finely divided particles which will pass freely through the
passages of the pump, force main, and fittings. The pump discharge shall
match the manufacturer's recommended discharge size but shall be at
least 1-1/4" in diameter.
B. For duplex systems (two pumps), an alternator shall be provided to
automatically alternate between the pumps on each operating cycle so that
each pump is assured of near-equal operating time. For duplex systems, the
Part VI. Technical Specifications
June ��23 �Ll r$I� ��� �� NWNF 9fn-`Page 632 of 771 201
Page 226 of 297
High-Water Alarm (HWA) shall be activated in the event that the lead (first)
pump is unable to maintain proper level and the lag (second) pump is called
to ru n.
2.3 PUMP SUMPS
A. The pump sump shall include integral anti-flotation flanges, and shall be
fabricated from one of the following materials:
1. Asphalt-coated steel (minimum 3/16" plate), with interior and exterior
surfaces protected with a minimum of 0.10" thick corrosion barrier
acceptable to Central San.
2. Filament wound fiberglass, minimum '/4" wall thickness with tank interior
surface protected with a minimum of 0.10" thick, resin-rich corrosion
barrier.
3. Reinforced concrete pipe or manhole b e c ' ns with a corrosion
barrier of PVC "T-lock" or other mated r c acceptable to Central
San.
4. High density polyethylene (HDPE).
5. A Central San-approved alternativ
B. The sump shall have a 4" minimu let outle at least the size of the
pump discharge. The invert of i t I b ast 6" above the First
Pump On set-point elevation.
C. The pump sump co hall oxy c steel plate (1/2" minimum
thickness), heavy cast or ump system manufacturer's standard
molded plastic, an esi to support reasonably anticipated dead
and live loads, inc ing imp H- required for traffic areas).
2.4 MOTORS
A. Motors for column-typ s shall be a drip-proof vertical type, totally
enclosed, weather protected, and shall conform to the standards of NEMA.
B. Only explosion proof pump and motor assemblies approved by an NRTE and
listed as explosion proof for Class 1, Division 1, Groups C and D locations
shall be used in non-residential applications.
C. Pumps constructed with separate thermal overload protection and moisture-
sensing seal failure probes shall have these devices connected to sensors
and to an alarm in the control panel according to the manufacturers'
recommendations.
2.5 MOTOR LEVEL CONTROLS AND PANELS
A. The pump's level controls shall employ either: 1) a ball and rod mechanical
float switch mounted above the cover; 2) a weighted mechanical-type float
Part VI. Technical Specifications
JR�16, 2022 Regular Board Meeting Agenda PaAfc �%J3 P771lndividual Lot Pumping Systems
Page 227 of 297
switch sealed within a polypropylene shell with a neoprene-covered cable; or
a Central San approved alternate.
B. Each pump level control switch shall be wired directly and independently to
terminals in the control panel.
C. Each pump and the level control/alarm system shall be on separate electrical
circuit breakers.
D. The following level control scheme shall be provided:
1. A "High Water Alarm (HWA)" switch set to alarm a minimum of 3" below
the invert elevation of the gravity inlet sewer and to start the "lag" pump in
a duplex system.
2. The single pump in a simplex system and the "lead" pump in a duplex
system shall be set to start at least 6" b ow the gravity inlet sewer (High
Water Level (HWL)).
3. Pump(s) shall turn off at least 3" a e or 3" above the pump
suction if an LWA is not included. and tween the HWL and
pump turning off shall be great eno Ilow p to run for at
least thirty (30) seconds during pu cle.
4. An optional "Low Water Alar L itch to alarm at an elevation
above the pump suction inl nd a redundant pump shut off.
2.6 INTRINSICALLY SAFE ITS
Level control and alarm tem it wirin nected to level switches in the tank
shall be listed as intrinsic afe NRTE. The circuits shall reduce the power
to the pilot devices an a v incapable of releasing sufficient thermal or
electrical energy to ig an ex ve vironment. Separate conduits for the
control and motor po wiring s e run between the sump and the control panel.
Both conduits shall be ded h seals to prevent sewer gases from migrating to
the control panel.
Part 3 - Execution
3.1 GENERAL
A. Work shall meet or exceed the requirements of these Specifications unless
applicable requirements of an agency having jurisdiction (including the terms
and conditions of an encroachment permit issued by a city or county) are
greater, in which case the greater requirements shall govern.
B. Installation of pumping system components shall conform to the manufacturer
recommendations.
C. A standard clean out with an Overflow Protection Device shall be installed
between the served building(s) and the sump inlet.
Part VI. Technical Specifications
June ��23 �Ll r$I� ��� �� NMMF 9fn-`Page 634 of 771 203
Page 228 of 297
D. The gravity sewer between the building(s) and the sump shall meet the cover
requirements in Subsection 4-08.
3.2 PUMP SUMP
A. Ballast consisting of material specified in Section 03 30 00 - Cast-In-Place
Concrete or Section 03 34 13 - Controlled Low-Strength Material (CLSM), and
weighing at least 1-1/2 times the calculated buoyant force on the sump
assuming the groundwater surface is one (1) foot below finish grade shall be
provided. The required minimum volume of ballast material will be cited on
the approved Central San pump curve data sheet.
B. The top of the cover shall be at least 3" above the surrounding ground surface
in non-traffic areas. The sump cover shall be securely attached to the pump
sump with stainless steel bolts, and all joints between the component parts
and openings shall be sealed with gas tight gaskets.
C. The sump shall be vented to atmosphere, the building drain-
waste-roof vent; or 2) through an integral nt i over.
3.3 CONTROL PANEL, ALARM SYSTEM AN CT ORK
A. The Control Panel shall be mounted outside th p su on a post or
building wall, or inside the served bu' e p shall have a NEMA 1
classification when mounted inside uild am um NEMA 3R
classification when mounted outsi he I
B. The Alarm Panel, or a remo arm in ator hall be mounted within the
building that is se th p an ovide a visible pilot light and
audible alarm with sil to the building occupants to alarm events.
The alarm systems a ate electrical circuit from pump motor
power. When actio d by h w r or low water condition, the alarm
system shall rema atched anually acknowledged and cleared.
C. Electrical work shall the technical and permitting requirements of
the local building code cement agency.
3.4 DISCHARGE LINE
A. The pressure portion of the discharge line, including the isolation valve, check
valve and mechanical couplings shall be the same size as or larger than the
pump discharge line. The valves and discharge line connecting the isolation
valve, check valve, cleanout and mechanical couplings inside the sump shall
be DWV (drain, waste, vent) brass, copper, PVC (Schedule 40 or 80), or a
Central San approved alternate material. The isolation valve shall be operable
from grade and shall be placed in a utility box if outside the sump.
B. The portion of the pressure discharge line between the sump and its
connection to the private gravity side sewer shall be PVC conforming to
Section 33 05 31.11 - Polyvinyl Chloride (PVC) Gravity Pipe; or High Density
Polyethylene (SDR-11) conforming to Section 33 05 33.13 - High Density
Part VI. Technical Specifications
JR416, 2022 Regular Board Meeting Agenda PaAfc �%Jg P771lndividual Lot Pumping Systems
Page 229 of 297
Polyethylene (HDPE) Pipe; and shall meet depth and bedding requirements
for side sewers as specified in Section 4.
C. A standard tee or wye branch with cleanout shall be placed where the
discharge line connects to the private gravity side sewer as shown in DWG
24-01. The discharge line may connect to an existing building lateral
downstream of the building cleanout with a wye connection. If physical
limitations prevent at least five feet of gravity lateral from being installed the
pressure pipe may be connected directly to the gravity main through a 4" wye
with a 4x2 reducer; no tee connection shall be allowed.
- END OF SECTION -
Part VI. Technical Specifications
June ��23 �Ll r$I� ��� �� NWMF 9fn-`Page 636 of 771 205
Page 230 of 297
Part
Standard i
June e,rAARR MPERM' eting Agenda Packet- Page 637 of 771 207
Page 231 of 297
DWG 19-01
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
STANDARD MAIN MANHOLE
ROUND BLOCK SQUARE BLOCK CONCRETE TOP BLOCK 4'-6"
#4 CONTINUOUS O.D. ROUND OR 4'-6" SQUARE,
SIDES PARALLEL TO OR AT
RGHT ANGLES TO EDGE OF
PAVEMENT
•\ I SQUARE BLOCKS SHALL BE USED
#4 TIES @ 18" a� IN EASEMENTS, ROUND IN PAVEMENT
0 0
_2'-3" TOP BLOCK
ROAD SURFACES EASEMENT GROUND SURFACE
CAST IRON FRAME & 911/2 �—
COVER (SEE DWG 19-08) x
c\i a
N
24" I° m o
POUR CONCRETE TO THROAT v
WITHIN 2" OF TOP OF U w o
COVER CASTING #4 HOOPS z z DOWNSTREAM
0
#4 TIES @ 18 w u " '"'
CLEAN & DRY JOINT AND INSTALL USE NON-SH K w
PREFORMED PLASTIC SEALING GASKET GROUT F
PRIOR TO SETTING BARREL OR CONS ALL INSSIDE
SECTION, TYP.
PRIMER AND SEALANT TAPE AT 4 -0
OUTSIDE SURFACE OF ALL JOINTS
UPPER MA CT
NON-SHRINK OUT THE BASE SHALL BE
TYP. A N POURED TO A LEVEL
3" ABOVE THE
ROWN OF THE
FORM RECESS IN BASE WITH HIGHESTT PIPE
APPROVED METAL FORMING A ELF A WATERSTOP
RING TO RECEIVE PRECAST
MANHOLE JOINT. INSTALL PRE-
FORMED PLASTIC SEALING GAS FOR CONNECTION
BEFORE PLACING FIRST SECT ABOVE SHELF SEE
REINFORCED CAST-IN- E a DWG 19-02
OR PRECAST CONCRETE E
#4 @ 12" TYPICAL BELOW SHELF
_�— _�— —�� CONNECTION TO MANHOLE
(SIDE SEWER OR MAIN)
TYPE 1 BACKFILL 6" IN 8"-MH. DEPTH 0'-15'
10"-MH. DEPTH 15'-25'
IF WATER OR SOFT 9
GROUNDIS PRESENT, PLACE MIN
COARSE BEDDING ANGLE BETWEEN IN-
MATERIALIN GEOTEXTILE 5'-8" - COMING AND OUTGOING
WRAP WITH 12" MIN FORM OR LINES SHALL BE 90°
a OVERLAP AT FABRIC EDGESBASE SECTION POUR AGAINST OR GREATER
o UNDISTURBED SOII
t
94 @ 12" GRID SCULPT INSIDE OF
BEND TO FACILITATE
9 ROUTING CLEANING
r I EQUIPMENT THROUGH R,.,
BEND.
L
I \ I
TYPICAL ECCENTRIC \I xI
CONE ORIENTATION f FLwd
s - - - - - -
-
SLOPEI -
a — r 2"/FTI }}
I
'E SHELF i cD SHELF
y r
L
U
d
O
a`
Y OPTIONAL SQUARE OPTIONAL ROUND
BASE REINF. DETAIL BASE BASE
0
(CAST-IN-PLACE) BASE SECTION A-A
June 16, 2U22 Regular Board meeting Agenda PaCKet- Page 638 o
Page 232 of 297
DWG 19-02
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
STANDARD TRUNK MANHOLE
FOR 15" TO 45" LINES
NOTES: ROUND BLOCK SQUARE BLOCK
4'-6" DIAMETER (4'-6' SQUARE)
1. LAY PIPE THRU MH WHEN POSSIBLE CONCRETE BLOCK PARALLEL — — — CAST IRON FRAME
OR FORM CHANNEL TO MAINTAIN PIPE TO OR AT RIGHT ANGLES �' a a pWG019R08SEE
SECTION. TRUNK SEWER PIPES TO EDGE OF PAVEMENT.
ENTERING OR LEAVING THE MH BASE "� °
SHALL HAVE A STANDARD JOINT
LOCATED 12" TO 24" FROM THE BASE. / #4 CONTINUOUS E.F.
#4 HOOP
2. ALL STEEL REINF. SHALL HAVE 3"
#4 TIES @ 18" 1 1 #4 TIES @ 18"
MINIMUM CONCRETE COVER. 0 0
3. SQUARE TOP BLOCKS SHALL BE USED TOP EASEMENT
IN EASEMENTS. BLOCK , GROUND
ROAD SURFACE 9-112 SURFACE
4. ROUND TOP BLOCKS SHALL BE USED
IN STREETS. POUR CONCRETE �� N a
TO WITHIN 2"
5. FOR CONNECTION OF MAIN OR SIDE OF ROAD SURFACE
SEWERS BELOW SHELF, SEE DWG-1. 24" I m
#4 HOOP
Lu
6. MUST USE FOR SSMHs GREATER THEN THROAT o zo
20' FROM RIM TO LOWEST INVERT #4 TI 1
ELEVATION OF OUTGOING SEWER PIPE. y o
7. MAXIMUM DEPTH IS 30'FROM RIM TO w Z v
LOWEST INVERT ELEVATION OF z w
OUTGOING SEWER PIPE. 06
CLEAN & DRY J w
INSTALL PREF USE NON-SHRINK
PLASTIC SE GROUT TO FINISH
GASKET PR ALL INSIDE JOINTS
TO SETTIN ARREL
OR CONE S ION.
PRI AND 5'-0"
SEAL
AT
SURFOAC I.D.MIN.]
ALL JOINTS UPPER SECTIONNT
12
SLOPE SHELF TO I Q x OIIRED
CHANNEL 2"/FT g
FORM RECESS WITH APPROVED METAL FORMING RING TO RECEIVE
PRECAST BARREL JOINT. INSTALL PREFORMED PLASTIC SEALING
x OPTIONAL I OPTI GASKET BEFORE PLACING FIRST BARREL SECTION.
moo' SBASRE B BASE SHALL BE POURED TO A LEVEL
r 3" ABOVE CROWN OF HIGHEST PIPE
T — OVER ALL TYPICAL CONNECTIONINLET/ :�SCNINK
TO MANHOLES (SIDE PIPESOUTLET A SEWER OR MAIN) ROUT
SHELF
SAWCUT UPPER WATERSTOP
NON HALF OF PIPE FOR
oIII I SHRINK d ACCESS OPENING• I \� GROUTa P IPE
Y o CHANNEL
ar a TAPER
= --�
l• I� I �II �� I h I 112" PER, a
N d ed dd
I
a � I °
L a
— J I a a I #4
c n BASEGRID REBAR
#4 @ 12" I�
a E.W.�y
II. SHELF za— i — - -..-d— � r, JG1
-44
L _1 _ CHANNELS °
TOALL INLETT POIPE
"i MANHOLE THROAT I TOP OF PIPE
LOCATION OR AS _ REMOVED WITHIN
DIRECTED
a ENGINEER MANHOLE FORM OR POUR AGAINST
Y SEE DWG 19-01 FOR UNDISTURBED SOIL
BEDDING & FOUNDATION
o DETAILS BASE SECTION
0
BASE SECTION A-A
June 16, 2U22 Regular board meeting Agenda HacKet- Flage 639 o
Page 233 of 297
DWG 19-03
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
SPECIAL TRUNK MANHOLE
(VARIANCE REQUIRED)
7T - T - - T l
I T��— — — I
L _______+ ______1-4LI
i84" MIN. �1
I I
2 - #4n
STA D
III �I I I I I BA
2'-6" X 3'-0" AGONAL
OPENING _ _—
Y W/ 1 " TAPER
— VARIES BY
PIPE SIZE i
2 EACH SIDE
I
T\ — — #4 n
� II
IIT s`
I I \
J l STANDARD 60"
PRECAST BARRELS
I `
- -
I
L _L1_______-- _____ -1J_J BELL END
OF PIPE
MANHOLE CONE TOP 3"MIN a— — _ _ WATER
d BLOCK & COVER • ° �'° • STOP
SEE DWG 19-02
I
FORM OR PLACE—,,, ° Ia
x 2'-6" X 3'-00" AGAINSTa _ _ ° 5"MIN
SAWCUT OR BLOCKOUT UNDSTURBED SOIL °' • � ° ' (TYP. )
U ACCESS OPENING ALL SIDES
SECTION A-A 5 — #4 I \°
�I
° 1 EACH
#4
NOTES: n a1 #4@12"
° @ EACH •° MAX
1 . ALL STEEL REINFORCING END T
SHALL BE #4 WITH 3" MIN
MINIMUM CONCRETE COVER d/4 I CAST—IN—
PLACE
2. FOR CONNECTION BELOW °' CONCRETE
SHELF SEE DWG 19-01 BASE
0
SECTION
Y 3. 2'-6" PIPE ID FOR < 36" UNDISTURBED
D/2 FORz 36" SOIL
N
N
SECTION - BASE BLOCK
une I b, 2022 Regular Board Meeting Agenda PaCKet- Page 64U o
Page 234 of 297
DWG 19-04
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
SHALLOW MANHOLE: TYPE 1 & 2
(VARIANCE REQUIRED)
CAST IRON FRAME & COVER
(SEE DWG 19-08)
TOP ELEVATION TO BE
DETERMINED IN FIELD
USE GRADE RINGS AS 9i'2"
NECESSARY - 6" MAX.
ROAD SURFACE
�2 EASEMENT GROUND SURFACE
A.C. SURFACING I •
#4 HOOPS I° Xz NOTES:
esj Is v) a
#4 @ 18" 1 . THIS MANHOLE MAY BE
4'-0" �= = USED WHERE DISTANCE
NON-SHRINK a FROM TOP OF BASE TO
15", 24", OR 30" BOTTOM OF FRAME IS
PRECAST CONCENTRIC GROUT BETWEEN 15" AND 30"
MANHOLE CONE SECTION ., 2. ALL STEEL REINF. SHALL
HAVE 3" MINIMUM
n • CONCRETE COVER
#4 @ 12" FROM CENTER •° ° SEE DWG 19-01 FOR
EACH WAY MANHOLE BASE
• CONSTRUCTION DETAILS
_a i•_•s ..s �s s p 4. IF USING PREFERRED
DRAWING, NO ADDITIONAL
PLAN CHECK REQUIRED.
SEE DWG19-01 FOR BEDDING ORM CAST
& FOUNDATION DETAILS AINST
STURBED
S N (T E1 L
GRADE RINGS AS
SARY - 6" MAXIMUM
CAST IRON FRAME & COVE
(SEE DWG19-08)
9i'2"— EASE MENT
EASEMENT GROUND SURFACE
2„
ROAD SURFACE5
A.C. SURFACING 1L c
s r
#4 HOOPS I •4r7
#4 @ 18" s °
PREFORMED PLASTI
SEALING GASKET "
T 12", 18", 24" OR 30" `" a�
PRECAST MANHOLE ON-SHRINK, :
of BARREL SECTION 4 -0 GROUT a
SHELF
� N
3
z i
w e �
r•
° ° ° a °° NOTES:
c ATERSTOP
1 . THIS MANHOLE TO BE
USED WHERE DISTANCE
„ FROM TOP OF BASE TO
n SEE DWG 19-01 FOR BEDDING BOTTOM OF FRAME IS
& FOUNDATION DETAILS BETWEEN 18" AND 36"
2. ALL STEEL REINF.
SHALL HAVE 3" MINIMUM
N ER
SECTION (TYPE 2) 3. SEEQ�WG 19-01 FOR
MANHOLE BASE CON-
2 STRUCTION DETAILS
r 4. IF USING FLAT TOP,
N ADDITONAL APPROVAL AND
N PLAN CHECK REQUIRED.
a
Page 235 of 297
DWG 19-05
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
MANHOLE BASE:
PIPE JOINT REQUIREMENTS FOR THROUGH PIPES
MANHOLE BASE
MANHOLE SECTION
12" MIN 12" MIN
24" MAX 24" MAX
SHELF
FLOW II ------- FLOW
— — — — L---
STANDARD STANDARD
JOINT ELFT JOINT
3
a
y
v
a
a
L
3
O
L
H
O
LL
Ul
C
d
P
d
C
O
d
a
a
m
m
0
L
N
NOTE: I . JOINT LOCATIONS APPLICABLE TO ALL
INCOMING AND OUTGOING PIPELINES,
$ EXCEPT THAT THE 24" MAXIMUM DIMENSION
SHALL NOT APPLY TO PVC PIPE LAID
THROUGH A MANHOLE.
U)
U
d
O
a`
Y
N
O
N
a
N
une 16, 2U22 Regular Board Meeting Agenda PaCket- Page 642 o
Page 236 of 297
DWG 19-06
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
MANHOLE BASE: SPECIAL DETAIL
FOR LINES TERMINATING IN A CUL-DE-SAC
A
I I
I I
I ' I
SHELF
II II
i
45° , 45°
P
45` 45°
PLAN
rn NON-SHRINK GROUT
3
v
d
SIDE SEWER
0
a
FLOW _T 3"
FLOW
U) MIN.
m a
°
o CC)
C °
R
�I
SECTION A-A SEE DWG 19-01 FOR
a MANHOLE BASE, BEDDING
0 & FOUNDATION DETAILS.
U
b
NOTES:
a
y
1 . NO LATERAL CONNECTIONS SHALL BE MADE IN DOWNSTREAM HALF
OF MANHOLE.
N 2. MAXIMUM NUMBER OF SIDE SEWERS ALLOWED = 5.
U
0 3. TOP OF SIDE SEWERS SHALL BE NO LOWER THAN TOP OF OUTLET PIPE.
a`
Y 4. SEE DWG 20-05 FOR REQUIRED JOINT LOCATIONS.
0
N
R 5. PIPE CONNECTION INTEGRALLY CAST INTO THE PRECAST BASE BY THE
MANUFACTURE.
June 16, 2U22 Regular Board Meeting Agenda HaCKet- Hage o
Page 237 of 297
DWG 19-07
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
MANHOLE BASE: FUTURE CONNECTION
MANHOLE BASE
MANHOLE SECTION
SHELF MECHANICAL
PLUG
NO STUB ALLOWED
BEYOND MANHOLE
MATCHING PIPE
TYPE PLUG/ CAP
SHELF
SCULPT INSIDE OF i
i
BEND TO FACILITATE
ROUTING CLEANING
3 EQUIPMENT THROUGH
BEND
U
d
N
I I
U I I
I I
0
U
d
3
J
LL
N
m
O
L
N
A
N
MANHOLE BASE DETAIL
U
d
a
fn
A
c
A
U
d
O
a`
Y
N
O
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 644 o
Page 238 of 297
DWG 19-08
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
STANDARD MANHOLE FRAME & COVER
A
e
(1) EDGE PRY �o
i
00
v
I-
O-RING 0-RING
24
A
DETAIL B 25 5/16"
(1) BLIN ICK
32 3/16"
25 3/8"
SEE DETAIL B 23 7/8"
3
a
`>
0
v
m
E
LL
O
L - 24 -�
C
SECTION A-A
0
d
a
y
9
NOTES:
A
1. COVER SHALL BE DESIGNED FOR H-20 HIGHWAY LOADING.
U
a
a 2. PICK HOLE SHALL BE OPEN AND FIT A STANDARD PICK.
Y
N 3. PRY HOLE SHALL BE LOCATED AT BOTTOM CENTER
N OF THE MANHOLE COVER AS SHOWN.
v
a
0
a
June egu ar soarci meeting Agenaa FaCKet- Hage b4b ot Ill
Page 239 of 297
DWG 19-09
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
BOLT - DOWN MANHOLE FRAME & COVER
SCORE TOP EDGE OF FRAME RADIALLY
IN LINE WITH TAPPED HOLES IN FRAME
A
TOP OF FRAME
e �\ '�. & COVER
i ® �
A �\ A
UNDERSIDE I1 M�� I SEE DWG-8 FOR LETTERING
OF COVER / REQUIREMENTS
MACHINED
SURFACE
NEOPRENE
NOTES: i GASKET
1 . 2" LETTERING ( "CCCSD" FOR PUBLIC — — MACHINED
APPLICATIONS. AND "SANITARY SFWF SURFACE
FOR PRIVATE). OTHER AG IES U 10°30'
THIS DETAIL SHALL NOT COVE P PRY HOLE SEE
INSCRIPTION "CCCSD". DWG 19-15 FOR DETAIL
2. 4-7/16" X 1-1/4" STAINLFS FL DETAILS
MACHINE BOLTS WITH 1-1/ MACHINED SURFACE
FLAT WASHERS, AT 1/4 P AND BEVEL
INSTALL WITH ANTISEIZ MPOU
29 1/8"
1/ IN — 28 1/16" MAX
2 /16" MIN — 27 7/8" MAX
2 3/4" 1/i" COVER — 1/8' CROWN
3
N
o
\ Ln
a '`1/8" �11 1/4
E TAPER +1
d
25 1/8" MIN — 25 9/16" MAX
r 2 3/4" 29 3/8" — 2 3/4"
3 34 1/8" MIN — 34 7/8" MAX
0
1 114" SECTION A-A
1/2
"
y � WASHER )
t 3/4" SLOTTED HOLE
a 1/8" X 1 1/8" NEOPRENE GASKET v
9 \
� � M
1 1/ DRILL X 1 " DEEP 7/16" NC
X
X 1 4", 3 REQUIRED �
U I
"o^ 3/8" DRILL X 5/8" DEEP
Y 1 1/4"
N DETAIL OF TAPPED & PLAN
SLOTTED HOLES SLOTTED HOLES IN COVER
June 16, 2022 Regular Board meeting Agenda PaCKet- Hage b4b o
Page 240 of 297
DWG 19-10
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
MANHOLE ADJUSTMENT TO FINISH GRADE
PAVED AREAS
ROAD SURFACE
FINISH GRADE
CAST IRON FRAME AND y
9-1/2" COVER (SEE DWG 19-08) y
N
1.
11 a
�P 4
W � a
o� z d<° d a #4 @ 18"
Q CLQ d
CD o
OH �
4 d
GRADE RING
#4 H d d'
6 CONE
a d � 8 aad
EA TH 13% GRADE
CAST IRON FRAME AND COVER (SEE DWG 19-08)
ROA3
FACE
FINISH UGRAD
E
MANHOLE TOP BLOCK—\
0
H
C �
E X
Q Q
X c
o a PLACE NON-SHRINK GROUT &
00 X TROWEL FLUSH TO SURFACE
z0� OF RING
0� ® GRADE RING
o °
T
CONE
O d
U
U
d
N NOTE:
1. SEE DWG 19-01 FOR T0�
N BLOCK DETAILS
13% GRADE OR LESS
U
d
O
Y
N
O
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCKet- Page o
Page 241 of 297
DWG 19-11
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
MANHOLE PROTECTION WALL & TOP BLOCK
(REQUIRED FOR CROSS SLOPE STEEPER THAN 3:1)
A
FRAME & COVER
PER DWG 19-08
0 0
0
#4
s• #4 @ 12" O.C.
A
6'— 6" TYP.
P
LOPE 1/4'
FOOT 6 <3
w �
a 12"
3 GRADE TO MATCH
x w'o SLOPE OF GROUND •
� m X
oQ #4 J @ 12" vert. un,<
r
w0—#4 @12"
a #4 @12" horiz. Q o
a`
— � I
o � �
U
0
v
t �
TOP CONE NOTES:
#4 1. 3/4" CHAMFER OR ROUND WITH 3/4"
8" RADIUS AT ALL EXPOSED CORNERS.
0
18" 2. WALLS MAY BE CONSTRUCTED USING
n
CONCRETE MASONRY UNITS OR
� INTERLOCKING UNITS IF DESIGNED
o BY A REGISTERED ENGINEER.
U
d
O
a`
Y
" SECTION A-A
d
0
June I b, 2U22 Regular Board Meeting Agenda PaCket- Page 648 o
Page 242 of 297
DWG 19-12
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
TEMPORARY: MANHOLE COVER
%=i F-
A II \\ A
L 17
II II
II II
JL
PLAN
m
3
0
0
L
C
A
� 2r.
O.
23 1/2"
N
r
35"
T
Ill
O
U
U
SECTION A-A
Ill
NOTE:
U
d
O
a`
Y 1. FABRICATE FROM 5/16"STEEL PLATE USING 1/4"
FILLET WELDS TO BOTH SIDES OF EACH JOINT.
N
T
R
W
June Regular Board meeting Agencla PaCKet- Page b49 o
Page 243 of 297
DWG 19-13
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
TEMPORARY: MANHOLE FALSE BOTTOM
NYLON ROPE
HANDLES
INSTALLATION �J-3/4"
PLYWOOD REMOVAL
FALSE MANHOLE BOTTOM SHALL BE FALSE MANHOLE BOTTOM SHALL
FURNISHED AND INSTALLED IN ALL - .D BE REMOVED AFTER THE FINAL
MANHOLES CONSTRUCTED IN ADVANCE APPURTENANCE ADJUSTMENT
OF PAVING. THESE FALSE MANHOLE INSPECTION. THE PAVING
BOTTOMS WILL BE INSTALLED AT A CONTRACTOR AND OWNER'S
TIME DIRECTED BY THE ENGINEER REPRESENTATIVE WILL
BUT WILL USUALLY BE AFTER ALL COORDINATE THE REMOVAL OF
WORK IS COMPLETED ON THE THE FALSE MANHOLE BOTTOMS.
WASTEWATER SYSTEM INCLUDING THE
AIR TEST, BUT PRIOR TO THE FINAL
INSPECTION.
INSTALLATION AND R OV SIT
NOT T
METAL STRAP HI S
(MIN. 3" LONG)
WITH BOLTS
5/8" HOLE FOR 1/2" 01
NYLON ROPE HANDLES
CC) M
0
if
3 �
0
m
a
o
z
m i �
`o
a
E
m
H
5/8" HOLE FOR 1/2"
NYLON ROPE HANDLES
D = INSIDE DIAMETER
' OF MANHOLE
0
U
U
N PLAN VIEW
NOT TO SCALE
U
N
O
a`
Y
N
O
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 6bU o
Page 244 of 297
DWG 19-14
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
RODDING INLET
RODDING INLET 23"
FRAME AND COVER.
(SEE DWG 19-15 )
WHEN IN OTHER 6" 6"
THAN ROADWAY MIN MIN ROAD SURFACE
awn r7l
NON—SHRINK GROUT
,• a �°I
UNDISTURBED l
EARTH
3'-0" MIN.
T 6"
NOTES: RENCH
1 . NO SIDE SEWER WYE OR TAP S E CTI
CONNECTIONS WILL BE PERMITTED
IN RISER PIPE.
2. RISER PIPE SHALL BE THE SAME
MATERIAL AS THE REST OF THE A
LINE & SHALL BE IN A
VERTICAL PLANE.
3. NO LATERALS SHALL BE
INSTALLED WITHIN 24" OF 4' MIN
THE 45° FITTING. 6»
A. SEE SECTION 10-05 FOR ST ING 23" MIN
OF A RODDING INLET
5. ALL STEEL REINFORCEMENT ROAD SURFACE
SHALL HAVE A MIN. OF 3"
CONCRETE COVER.
NON—SHRINK GROUT
XwN
d , / #4 @ TOP & BOTTOM
ON ALL SIDES
2"
MIN a ° °d 3 #4 EA SIDE
CONCRETE BLOCK FULL \VlAllVAllyl
WIDTH OF TRENCH UNDISTURBED
g" 2" EARTH
a MIN
v,
d d
m
c
9 I 0
A
I
ai d e
V! z a
" d a W
9 O �
o UNDISTURBED EARTH
i OR COMPACTED RODDING INLET
"i BACKFILL. STRUCTURE
U
d
O
a` STATION OF RODDING INLET
N 30' MIN
0
VERTICAL SECTION
June 16, 2U22 Regular board Meeting Agenda PaCKet- Page bbl o
Page 245 of 297
DWG 19-15
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
RODDING INLET FRAME & COVER
PRY HOLE-SEE NOTE 3 A
V,
N
OE \ 1-1/2" LETTERING
( "CCCSD" FOR PUBLIC
APPLICATIONS AND
"SANITARY SEWER" FOR
PRIVATE) OTHER AGENCIES
USING THIS DETAIL SHALL
NOT USE COVER
INSCRIPTION "CCCSD"
B
1 cccs
1/8"
1/4 ICK HOLE - 1 1/8" WIDTH
SEE NOTE 2
SECTION B-B
COVER PATTERN
1/2"
c9
1/2"
PLAN DETAIL
PICK HOLE
16 - 16 1/2" MAX c\j
10° 30'
1/8" BEVEL TO MATCH FRAME
3/4" 1/2"
DETAIL FINISH 14 3/8" -
PRY HOLE
16 15/16" MIN - 17" MAX
16 5/8" MIN - 16 11/16" MAX
0-RING -16 7/16" MI5 1/416 1/2" MAX
LL FINISH f `
c N
9 \ �
O Ln
lyl
a DETAIL BSECTION A-A
g 14 7/8" MIN — 15" MAX-------�
d
18"
a
a 21 " MIN - 21 1/8" MAX
A
D
SECTION A-A
NOTES:
d
'0 1 . COVER SHALL BE DESIGNED FOR H-20 HIGHWAY LOADING.
a
x 2. PICK HOLE SHALL BE OPEN AND FIT A STANDARD PICK.
0
3. PRY HOLE SHALL BE LOCATED AT TOP CENTER OF THE RODDING INLET COVER AS SHOWN.
N
T
A
OD
une I b, 2022 Regular Board Meeting Agenda PaCket- Page bb2 o
Page 246 of 297
DWG 19-16
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
TEMPORARY: ACCESS STRUCTURE
(FOR CLEANING AND TESTING OF SANITARY SEWER
MAINS TO BE EXTENDED IN THE FUTURE)
#4 REBAR WITH
1 " PVC PIPE
x
Q
LO
5' MIN ECHAN I CAL
G
EDGE OF GROUND SURFACE
PAVEMENT
/ h r
a
TOP BLOCK
PER DWG 19-14
>aLu
z w
r--z
woCD
>�
wwa
w
LL
�n �n
U
U / /
U
FUTURE
° / — — — — — — — — — — —
ai
N
T
Ill
O
U
U
d
a
y
9
`m
9
c
m
Ill
N
U
N
O
a`
Y
0
N
O
N
T
R
W
June Regular Board meeting Agencla PaCKet- Page bbJ ot III
Page 247 of 297
DWG 20-01
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
TRENCH STRUCTURAL DETAIL 1 FOR EXISTING
PAVED STREET AND PARKING AREA
TRENCH SECTION IN EXISTING PAVED STREETS & PARKING AREAS
(PUBLIC & PRIVATE)
12" MIN TRENCH WIDTH 12" MIN
(SEE NOTE 1 )
PAVEMENT
STRUCTURAL
SUBGRADE I I I I I I Hill SECTION
V`
Z
FI
BAC
95% R
J OMPAC
Y W
m m
TRENCH
m ZONE
W
TRENCH
WARNING TAPE BACKFILL
PER SECTION 90% RELATIVE
3 31 23 16 COMPACTION
a
LINE SEPERATING
a` TAPE
VIBR G PLATE
¢` C CTION
12" MIN
SHADING PIPE
ZONE
LL 90%
RELATIVE
COMPACTION
W HAUNCHING
0
LL
d
4" MIN BEDDING
0
IF WATER OR SOFT GROUND IS PRESENT,
9" MIN PLACE COARSE BEDDING MATERIAL IN
GEOTEXTILE WRAP WITH 12" MIN
OVERLAP @ FABRIC EDGES
d
N I
PIPE & TRENCH
0
U
d NOTES:
a
M
I . TRENCH WIDTH, PIPE BEDDING & BACKFILL SHALL CONFORM TO THE
APPLICABLE REQUIREMENTS AND PROVISIONS OF SECTION 32 23 16
N OF THESE SPECIF CATIONS.
2. THESE ARE MINIMUM REQUIREMENTS. IF OTHER JURISDICTIONAL
'o AGENCY REQUIREMENTS EXCEED THOSE SHOWN, THE GREATER
g` REQUIREMENTS SHALL BE MET.
Y
0
3. 100% AB REQUIRED FOR SIDEWALK OR DRIVEWAY.
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 6b4 o
Page 248 of 297
DWG 20-02
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
TRENCH STRUCTURAL DETAIL 2 FOR UNPAVED AREA
TRENCH SECTION IN UNPAVED AREAS
(OFF ROAD EASEMENT OR FUTURE STREETS)
TRENCH WID I
(SEE NOTE 1 )
J
Y
/ a TRENCH
\ � °" ZONE
/ 90%
RELATIVE
w COMPACTION
m
BENCHED OR �
SLOPED TRENCH \
PER O'S.H.A /
REQUIREMENTS
WARNING TAPE /
PER REQUIREMENTS OF
SECTION 31 23 16.
Y C900 DR14
I PIPE TYPE
12 M REQUIRED J
SHADING PIPE
Y
a ZONE
d
m 90%
RELATIVE
Lu COMPACTION
HAUNCHING
4" MIN BEDDING
d
IF WATER OR SOFT GROUND
9" MIN IS PRESENT, PLACE COARSE
BEDDING MATERIAL IN
r GEOTEXTILE WRAP WITH 12"
d MIN OVERLAP @ FABRIC EDGES
N
Q� PIPE & TRENCH
T
O
U
U
d
,n NOTES:
1 . TRENCH WIDTH, PIPE BEDDING & BACKFILL SHALL CONFORM TO
N THE APPLICABLE REQUIREMENTS AND PROVISIONS OF SECTION
31 23 16 OF THESE SPECIFICATIONS.
U
0 2. THESE ARE MINIMUM REQUIREMENTS. IF OTHER JURISDICTIONAL
g` AGENCY REQUIREMENTS EXCEED THOSE SHOWN, THE GREATER
Y REQUIREMENTS SHALL BE MET.
N
O
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 6bb o
Page 249 of 297
DWG 20-03
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
STANDARD TRUNK SEWER TRENCH DETAILS
FOR 12" AND LARGER PIPE
EXISTING GROUND OR
PAVEMENT SUB-GRADE
� 1
TRENCH WIDTH TRENCH WIDTH T
o BACKFILL SEE
m
j/ DWG 19-07 &
/ w 19-08
0
0
w� 12"
w
J TYPE I
IT-3, BACKFILL
/// m
9"MIN q
IF WATER OR SOFT
EXCAVATE GROUND IS PRESENT. /
FOR PLACE COARSE BEDDI
BELL ENDS MATERIAL IN
GEOTEXTILE WRA
WITH 12" MIN. RLAP
@ FABRIC EDG
FOR D.I. PIPE ALL V.C., P.V.C.
INSTALLATIONS O LY PE INSTALLATIONS
(N.T.S.) (N.T.S.)
ING OUND OR
PA T SUB-GRADE
m
/7777 /
a TRENCH WIDTH TRENCH WIDTH
BACKFILL SEE
t DWG 19-07 & BACKFILL SEE
19-08 DWG 19-07 &
19-08
3
d
c
2
TYPE I
9 1/2 % RACKFILL / !/
` 0.D.
1/3 O.D.
N, � IF WATER OR SOFTS j/
" 9 ��GROUND IS PRESENT, �� 9"
PLACE COARSE BEDDING MIN.
a / MATERIAL IN
A GEOTEXTILE WRAP
WITH 12" MIN. OVERLAP
@ FABRIC EDGES.
FOR R.C. AND STEEL PIPE FOR R.C. PIPE
INSTALLATIONS INSTALLATIONS
UP TO 42" 48" AND LARGER
a
Y (N.T.S.) (N.T.S.)
0
N
R NOTES: I . PIPE BEDDING AND BACKFILL SHALL CONFORM TO THE REQUIREMENTS OF SECTION 31 23 16.
2. WARNING TAPE REQUIRED AT TOP OF THE PIPE ZONE.
June Regular Board meeting Agencia PaCKet- Page tibb o
Page 250 of 297
DWG 20-04
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
SHARED TRENCH DETAIL FOR SIDE SEWERS
TWO SIDE SEWERS IN ONE TRENCH
(SPECIAL APPROVAL REQUIRED)
TRENCH WIDTH:
30" FOR 4" SIDE SEWERS
36" FOR 6" SIDE SEWERS
i
/
/i
/
3
c
/ 6" MIN TYPE I
BACKFILL (EXCEPT
FOR CIP & DIP
N SIDE SEWERS)
`O /
12 4"
/ MIN. MIN.
0
U / l
H
d
w / 4" MIN.
7777 //�/
T
O
U
U
d
n NOTES:
I . TRENCH WIDTH, PIPE BEDDING AND BACKFILL SHALL
CONFORM
TO THE REQUIREMENTS OF SECTION 31 23 16.
dl
a 2. IN THE EVENT THAT SIDE SEWERS ARE TO BE CONNECTED
r TO A VC MAIN BY TAPPING, SUCH TAPS SHALL BE
0
BE SPACED A MINIMUM OF 5 FEET APART.
N
a
N
une lb, 2U22 Regular Board Meeting Agenda PaCket- Page bbl ot Ill
Page 251 of 297
DWG 20-05
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
TRENCH DAMS
LOCATED AS SHOWN ON THE PLANS
OR AS DIRECTED BY THE ENGINEER
GROUND SURFACE
TRENCH WIDTH & BACKFILL
SEE SEC. 31 23 16
12" MIN (TYP.)
TYPICAL KEY SIDES
AND BOTTOM
as a as e
a dr d
Z I Q a a
UNDISTURBED
d ° ° EARTH
da
a °I a s u
d d
4
° °< a I ° o °
d
CAST—IN—PLACE-
CONCRETE
AST—IN—PLACE ° a a
a d °
NLE
ORCSM
°d
d �d
d a
4
� 9 �
d °
N
3
E
SECTION
T
NOTES.•
O
1 . SEE SECTIONS 03 30 00 AND 03 34 13 FOR CAST—IN—PLACE CONCRETE &
a CLSM REQUIREMENTS.
2. TRENCH DAM TO HAVE 12" MIN. THICKNESS (ALONG TRENCH).
U
d
O
a`
Y
N
O
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 6b8 o
Page 252 of 297
DWG 20-06
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
JOINT UTILITY TRENCH SEPARATION DETAIL
SIDE SEWER AND OTHER UTILITIES
IN SAME TRENCH
\X
30" MIN
X, \\j COVER
i/ /\� (PVC,
ABS,
HDPE)
WATER \\
SERVICE OTHER
\\� UTTILITY
SERVICES
\\ IN. 6" MIN.
w \
4" MIN.
SIDE
a SEWER
d
N
L
u
c
m
F
NOTES:
1 . PIPE BEDDING AND BACKFILL SHALL CONFORM TO THE
4 REQUIREMENTS OF SECTION 31 23 16.
0
N
2. REFER TO SECTION 4-08 FOR PIPE COVER REQUIREMENTS.
0
3. THESE ARE MINIMUM REQUIREMENTS. CONTRACTOR SHALL
CONTACT UTILITY AGENCIES TO CONFIRM REQUIRED
a SEPARATION REQUIREMENTS.
A
D
C
A
M
yl
v
d
a`
Y
0
N
O
N
T
A
OD
June 16, 2U22 Regular Board Meeting Agenda PaCKet- Page 6b9 o
Page 253 of 297
DWG 20-07
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
CRITERIA FOR THE SEPARATION OF
WATER MAIN AND SANITARY SEWERS
ZONE "A": SEWER LINES NOT PERMITTED
(REFERENCE: CALIFORNIA DOHS GUIDANCE WITHOUT APPROVAL OF WATER AGENCY
MEMO NO. 2003-02)
ZONE "B": PERMITTED MATERIALS
-VC PIPE WITH COMPRESSION JOINTS
-PVC PIPE WITH RUBBER RING JOINTS
(ATSM 3034)
\\\\% -CI OR DI PIPE WITH COMP. JOINTS
SPECIAL z -RC PRESSURE PIPE WITH COMP. JOINTS
PERMISSION a -HDPE PIPE WITH FUSION WELDED
ZONE 2 \\\\\\ o w JOINTS (AWWA C906-99)
z -SPIRALLY-REINFORCED HDPE PIPE WITH
GASKETED JOINTS (ASTM F-984)
ZONE "A" o ZONE "C" ERMITTED MATERIALS
® E WITH HOT DIP BITUMINOUS
m NG
SPECIAL PIPE = PVC (DR 14). CONTINUOUS SECTION
o EN OVER PIPE BEING CROSSED
-RC PR E PIPE. CONTINUOUS
ECTIO D OVER PIPE BEING
SSED
- SEWER PIPE WITHIN A CONTINUOUS
SL
-HDP E WITH FUSION WELDED
JOINT (AWWA C906-99)
�6'-0" 3'-0`� -
E PERMITTED MATERIALS
-DI PIPE WITH HOT DIP BITUMINOUS
PARALLEL CONS TI COAT I NG AND MECHAN I CAL JOINTS
-HDPE PIPE WITH FUSION-WELDED
3 JOINTS (AWWA C906-99)
a
-C-900 PVC (DR 14) CONTINUOUS SECTION
CENTERED OVER PIPE BEING CROSSED
-RC PRESSURE PIPE CONTINUOUS SECTION
CENTERED OVER PIPE BEING CROSSED
-ANY SEWER PIPE WITHIN A CONTINUOUS
SLEEVE
a
a` ZONE "P": NOT PERMITTED
GRADE
0
/AV
a
ZONE
m
N
SPECIAL PIPE NO JOINTS
0
LL
lL WATER MAIN
U
0
N
T
4� 5'-0" 4'-0" � 4'-0" 5'-0
° ZONE "P"
ZONE "P"
a
fn
c l9
o ZONE "D"
i
SPECIAL PIPE-NO JOINTS
U �
d
O
r CROSSING
N
O
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 66U o
Page 254 of 297
DWG 20-08
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
ALL-WEATHER ACCESS ROAD TURNAROUNDS
103'
17'
T-TURN
R=
�43' �12'
43' R=32'
12'
P OR R AREA
E NOTE
17' HAMMER-HEA
t
R=32'
R=45'
3
c
12' CIRCLE
0
U
Q
L
A
>d
a R=32'
0
NOTES:
N
1 . CROSS SLOPE WITHIN TURNAROUND SHALL
NOT EXCEED 8% GRADE.
2. SEE SECTION 31 23 16 FOR ACCESS ROAD
REQUIREMENTS. �12'
3. ALL DIMENSIONS ARE MINIMUM REQUIREMENTS.
U
d
O
a`
Y
N
O
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 661 o
Page 255 of 297
DWG 21-01
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
LAYOUT OF CURVED ALIGNMENT
USING STRAIGHT PIPE SEGMENTS WITH
JOINT DEFLECTIONS OR FITTINGS
v
z
g•G•
C. z
NORM�ZoN �F
�ZRP�(ZNG o �
PLAN
(FITTI REMOVED FOR CLARITY)
THE LAYING LENGTH (L ), RADIUS (R), AND INCLUDED ANGLE ( A ) ARE
COMPUTED BY THE EQUATIONS:
3
a
e
L= 2 X R X TAN(A/2N)
R= L / (2X TAN ( A/2N) )
A= 2 X N X TAN-1
z
WHERE:
U
`o R = RADIUS OF CURVATURE, FEET
'o
a
L = LAID LENGTH OF EACH PIPE SEGMENT
MEASURED ALONG THE CENTERLINE, FEET
N
0 = TOTAL DEFLECTION ANGLE OF CURVE, DEGREES
0
U
N = NUMBER OF DEFLECTED JOINTS
a
fn
A/N = TOTAL DEFLECTION AT EACH JOINT, DEGREES
NOTE: "L" SHALL BE EQUAL TO OR GREATER THAN 5 FEET.
U
d
O
a`
Y
N
O
N
a
N
une Regular Board Meeting Agenda PaCket- Page 662 o
Page 256 of 297
DWG 21-02
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
MAIN SEWER CONNECTION TO TRUNK SEWERS
48"AND LARGER
(SPECIAL APPROVAL REQUIRED)
SEE CONNECTION
DETAIL BELOW STANDARD
MANHOLE
C NEW MAIN SEWER
CL 52 DUCTILE IR
C-900 PVC (DR14
100' MAX
i I i o
i
PLA
11Y4' MAX
y /
C
R EXISTING /
TRUNK /
° SEWER /
U /
C /
C
N pL 1/ MPy. ON C)
RPi� 52 oocP� loR1
o�
C\- c 90
T
O
U
MODULAR MECHANICAL
n EXPANDING RUBBER SEAL
NOTES:
U
0 1 . TAP SHALL BE CORE DRILLED,
a RECOVER CORED PLUG.
r CONNECTION DETAIL
2. USE CLSM BACKFILL WITHIN
N 5' OF TRUNK.
a
°
June 16, 2U22 Hegular Board Meeting Agenda PaCket- Page 663 o
Page 257 of 297
DWG 21-03
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
PIPE ANCHOR DETAIL
/ fSURFACE
OVER PIPE
SEE DETAIL A
BELOW
PIPE
NOTES:
1 . PIPE ANCHORS SHALL BE
CONSTRUCTED AT 40' HORIZONTAL
INTERVALS ON ALL SLOPES_> 30%.
2. REINFORCING STEEL SHAL BE AS 40' MAX
SPECIFIED IN SECTION 00.
3. ANCHORS SHALL BE CAST—IN E
CONCRETE PER SECTION 03
SURFACE PING
OVER PIPE RENCH SURFACE
OVER PIPE
777\777
A TRENCH
I
12" I 1�'
III PIPE WIDTH _
I YANCHOR
a � a
"
12"
D c
L
a PIPE ° a °d 4 a 3" CLR.
d a
°4
N � c
T
Ill
O d
� N
a d
Vl
9
A 4 — #4 BARS
"i FOR SLOPED FOR VERTICAL
d
TRENCH WALL TRENCH
'o
Y DETAIL A SECTION A-A
0
N
O
N
T
R
W
une egu ar soarci meeting Agencia HaCKet- Hage ot III
Page 258 of 297
DWG 21-04
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
JUNCTION SUPPORT
EXPANSION BLOCK
(SPECIAL APPROVAL REQUIRED)
2'-0"
CORROSION PROTECTIVE
COATING APPLIED TO
ALL EXPOSED METAL
COUPLING 3 - #4 REBAR
z n ° d #4 REBAR E.F.
J GLE WRAP 50#/100 SO FT.
F I NG PAPER
FLOW 1/2"CLEA FLOW
Z_ to d I a
a UNDISTURBED
a EARTH
a
� d
O7 UNDISTURBED ad
o EARTH I
wm °
zw
�w
mz
w cD I
~z
w
ow
wJ
mQ
U_
Z d
U
=w
0
m Ld °d °
w
C)U'
m UNDISTURBED
EARTH
3
a
C
0
a
y PIER
`o MIN. DIA 12"
U
a
N
U
VERTICAL SECTION
U
d
a
fn
NOTES:
1 . ENGINEERED DESIGN FOR PIER REINFORCEMENT SHALL BE SUBMITTED TO CCCSD.
0
2. ALL STEEL REINFORCEMENT SHALL HAVE 3" MINIMUM CONCRETE COVER.
a
Y
N
O
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 66b o
Page 259 of 297
DWG 21-05
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
CONCRETE PIER SUPPORT
FOR USE WHERE HEIGHT IS 1 TO 20 FEET
(SPECIAL APPROVAL REQUIRED)
�--s=1---�r�---rte--�
I I II I I I
I
1 1 I I II I I I
�--�
NOTE: -- --JL—-
-
NON-SHRINK
GROUT II II SET A36 STEEL BASE PLATE
TO PROVIDE 2" CLEARANCE
FOR FIELD ADJUSTMENTS ---------
1/2" BASE OF PIPE SADDLE TO GRADE.
PLATE SEEMETAL SHIMS FOR ADJUSTME �/ /
DETAIL BELOW I/ /I SHALL BE 3" MINIMUM VjD
AND
18"X 5/8' I BASSEPLACED PLATEE PLAN.AS Ir / II
�� I
J-BOLTS I / / FILL ENTIRE VOID B L / II Q
BASE PLATE AND PIPE I ,I
SADDLE WITH NON-SHR I w
GROUT U
8" w i
-BOL I, / w o
90 DEGREE I / �I Q N
ROTATED SECTION I' I
� N
/ A
I' I
GROU FACE I / �I
/
A u,
I z
I� o
i <
Q
w
r�
a
/ o
r---------- I� =
w Eww
z
LJ ww 01 XZ
LN
I
I I PILE �� �CDLw
Ire rel u� aim
3 II SHIMSo II aC o
r
L__j ��I ° a d �~ Li
z w
O cl�
�w
I I aw
z _CD
No
IDI I O+ I ww Wm
v L--I
`J - _j
oz
___-- a
z
J-BOLTS ��
y �Z
" ENGINEERED DESIGN------ I �I
FOR PIER REINFORCEMENT / L`
SHALL BE SUBMITTED �I w n
y TO CCCSD /
T
Ill
N
U
N
O
Y BASE PLATE PLAN VERTICAL SECTION
0
N
O
N
T
R
W
June Regular Board meeting Agencla PaCKet- age 666 ot III
Page 260 of 297
DWG 21-06
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
PIPE SADDLE
FOR USE ON CONCRETE PIER
SUPPORT AND TRESTLE BENT
O.D. OF PIPE "
PLUS 1/2"
7/16" DRILLED HOLES
I o
N
2
TOP VIEW OF CLAMP
3/8" PLATE WHERE I.D.- 12" OR LESS
1/2" PLATE WHERE I.D.= 15" OR MORE
3/8" X 3 1/2" MACHINE—
I D
SCREW AND HEX NUT
1/4" RUBBER BETWEEN
NOTE: PIPE AND CLAMP
FABRICATE BY WELDING,
WITH CONTINUOUS 3/8" g' PL
FILLET WELD,ALL 3/8"
JOINTS. BOTH SIDES. 8
/8" WEEP H
TYP. )
5/8" X 3" MACH L
BOLT AND HEX
1/2" BASE PLATE
I.D./3)+ 11/16" DRILLED HOLES
2" 6" MIN
2x I.D. )/3)+6" NOTE:
14" MIN PIPE SADDLE PARTS SHALL
END VIEW BE A36 STEEL, HOT-DIP
GALVANIZED AFTER FABRICATION.
35 1/4 "
31 1/4 "
27 1/4 LOWER HALF OF
o PIPE CLAMP
N
a 3/8" PLATE 6" RADIUS
N
Ti
b _— FF
$ II II II
II II
u) II II o
II II
3/8„ II�3/8" PLATE II
N II PT BASE I�
U' II
PLATE
d
0
Y 1 1/2" �--11 "(TYP. ) 1 "(TYP. )� �-1 1/2"
N
O
SIDE VIEW
une I b, 2U22 Regular Board Meeting Agenda PaCket- Page o
Page 261 of 297
DWG 21-07
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
GUARD FENCE
FOR CREEK CROSSING
NOTES:
1 . ALLGUARD FENCE PARTS SHALL BE
HOT-DIPPED GALVANIZED AFTER
FABRICATION.
2. EACH GUARD FENCE SHALL HAVE A 12" x 14"
20 GAUGE MINIMUM SIGN PERMANENTLY ATTACHED
IN LOCATION SHOWN (FURNISHED BY CCCSD).
x x x x x
x x x x SEE SECTION C
x x x x x +
k/k KEEP +X\
2" MESH x #9 GAUGE
CHAIN LINK TYPE FENCE A-
FABRIC - GALVANIZED + + \
} +
}/ 6Q FENCE M + LOCATIONS
T
/A- + (16)
+
+ 6044Z �i Ili; �x \
/
+
9 —
CLE
3'-4 CLAMP - 1/4" x 6" STRAP
RADIUS OF PIPE O.D. + 1/4"
CL - 1 S 1/4" PURE GUM RUBBER (35-45 DUROMETER)
(4 REQ' P) BETWEEN PIPE AND CLAMP
1-1/2"x 2"x1/4"L LE ATION 1-3/4" �1-1/4"
FENCE I
FABRIC I� WEB-1/ ATE
1-112"x1-112"x1/4"L
60° 1 FENCE FABRIC
CLAMP L 9/16" HOLES FOR
�4'L-� CLAMP BOLTS
6'
SECTION A-A SECTION B-B
3 \
3 STRANDS 9 GAUGE GALVANIZED SLOTS FOR \
BARBED WIRE. EQUALLY SPACED BARBED WIRE \ ��
X � X eye \ q5o
/ \ WELD TO
T X POSITION SHOWN
s X ° — X / 1-1/2"x1-1/2" FRAME
N _ — — — + x1/4"L FENCE FABRIC SPRING TYPE LOCK WASHER
5/16" HEX HEAD BOLT
OR CAP SCREW
" + 2-1/4" O.D. FLAT 5/16" HEX NUT
BOLT LOCATION FENDER WASHERtj
a (SEE FENCE BOLT OBACROSSNK IDING
r DETAIL)
SECTION C FENCE BOLT & WIRE ATTACHMENT DETAIL
N
( 16 MIN. BOLT ASSEMBLIES REQUIRED)
PLACED AS SHOWN
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 668 o
Page 262 of 297
DWG 21-08
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
DEBRIS TRAP
FOR CLEANING PURPOSES
NOTES:
1. ALWAYS USE IN DOWNSTREAM MANHOLE DURING
CLEANING OPERATIONS.
2. WHEN DEBRIS BUILDS UP TO THE LEVEL OF THE
TOP OF THE TRAP. STOP OPERATIONS
AND REMOVE THE DEBRIS FROM THE MANHOLE.
3. FABRICATE FROM 16 GAUGE GALVANIZED SHEET
METAL.
FINE
MESHED
SCREEN
4
I
TALLATION DEBRIS TRAP
(SEE DETAIL)
M. I.D. I.D./6
MIN. 3" 2" MIN. FLUTED END
�o rn
m o z
3
d
m
F
m
a`
D
m�
R
N �
fll
T
M
� W
u
u
a �
N
a
m`
D
C
A
M
yl
v
d
x DETAIL
0
N
O
N
T
A
OD
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 669 o
Page 263 of 297
DWG 22-01
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
SIDE SEWER LAYOUT
(CONNECTION TO EXISTING MAIN)
11, EASEMENT LINE OR LAST IMPROVEMENT
LATERAL SEWER HOUSE SEWER
CURB+GUTTER
c?
z
0
J J
Om 3
EANOUT
DWG 22-07
7SADDLE CONNECTION PLAN VI OVERFLOW
EXISTING MAIN PROTECTION
2-24" TYP. i DEVICE
FACE OF CURB OR
z
EDGE OF PAVING
ROAD GRADE �S 1`
c�
z
z_
MARK
J J
SUBGRADE TAPE w z a
m �
3 COUPLING COUPLING BUILDING
DRAIN
LONGITUDINAL SECTION
W
AS< SIDE
o l��N SEWER
Q BEND
0
45° MAX
d SADDLE
y COUPLING
0
MIN.
p
�-sL PE
N 8
2/o
a SEWER MAIN MAIN WITHOUT
o SPECIAL
RADIAL APPROVAL
CONNECTION
SADDLE CONNECTION DETAIL
NOTES: CONNECTION AT MAIN
1 . WHEN A LATERAL SEWER IS INSTALLED IN ADVANCE OF THE BUILDING SEWER, IT SHALL BE TERMINATED
a_ WITH A CAP OR PLUG 5' PAST THE PROPERTY LINE, EASEMENT LINE OR LAST IMPROVEMENT AND THE
Y CONTRACTOR SHALL MARK THE LOCATION OF THE CAPPED/PLUGGED END WITH A 2X4 PRESSURE TREATED
STAKE PAINTED GREEN.
2. REFER TO SECTION 31 23 16 FOR BEDDING AND BACKFILL REQUIREMENTS.
June Regular Board meeting Agencia PaCKet- Page 6713 o
Page 264 of 297
DWG 22-02
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
SIDE SEWER LAYOUT
(CONNECTION TO NEW MAIN)
F_, EASEMENT LINE OR
LAST IMPROVEMENT
TYP
# 4 REBAR
WITH 3/4"
PVC PIPE
FINISHED
ROAD GRADE
\ Z X
�
Ln Q
O
U Y z_
T H 00
LO
3 CAP
a
3
F MAIN21- MIN SLOPE
o WITHOUT SPECIAL APPROVAL
1 ' MIN
CLEARANCE
`O REQUIRED
U
T \ FITTING (45° MAXI
3
m
N
d
N
N
N
N
T
O
U
U
d
a
u) NOTES:
1 . REFER TO SECTION 31 23 16 FOR BEDDING AND BACKFILL REQUIREMENTS.
2. MINIMUM COVER FROM THE POINT OF CONNECTION TO THE BUILDING WASTE
PLUMBING (WITHIN TWO FEET OF THE FOUNDATION) SHALL BE 18 INCHES,
a COVER REQUIREMENTS FROM THE PROPERTY LINE TO A POINT WITHIN 8 FEET
r OF THE BUILDING WASTE SHALL BE IN CONFORMANCE WITH SECTION 4.
N
O
N
a
N
une lb, 2U22 Regular Board Meeting Agenda PaCket- Page 611 o
Page 265 of 297
DWG 22-03
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
TAP AND WYE CONNECTION TO EXISTING MAIN
WYE CONNECTION
MAIN LINE
(PPE MATERIAL VARIES)
2�
APPROVED L GTH
COUPLING
(VARIES WITH PIP AT A
3
TAP CONNECTION
TAP
MAIN LINE SADDLE TYPE TYP. )
o (PIPE MATERIAL VARIES)
0
U
d / �
V k 6 / r
'6
C
2
~ MIN.
N DISTANCE FROM
N BELL JOINT OR
' FITTING
0
U
U
d
a
fn
A
c
A
U
d
O
a`
Y
N
O
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 612 o
Page 266 of 297
DWG 22-04
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
MINIMUM LAYOUT OF WYES ALONG MAIN
STA. 10+00
PROVIDE STRAIGHT SEGMENT OF MAINLINE PIPE
TO ACHIEVE, MINIMUM 2' SEPARATION
REQUIRED IN-BETWEEN SINGLE WYES.
45° BEND
WYE
WYE
45° BEND
m
3
a
c
rn
`o STA. 10+00
a
v
T
O
O
T
E SINGLE WYE CONNECTION
NTS
N
N
T
O
U
U
d
a
fn
A
c
A
U
d
O
a`
Y
N
O
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 613 o
Page 267 of 297
DWG 22-05
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
OVERFLOW PROTECTION DEVICES
SEE NOTE 1
APPROVED OPD LOWEST FF
REMOVE STANDARD z
CLEANOUT PLUG +
FINISH GRADE 3" MIN.
a
STANDARD
CLEANOUT
4" MIN
E DWG 22-07
T 1
LOWEST FF
S OTE
z_
PAVED SURFACE
6" MIN CLEARANCE
OPD �
CAST—IN—PLACE
CONCRETE
B
4" MIN a
GRAVEL
v
STANDARD
° 6^ CLEANOUT
(TYP.) SEE DWG-39
0
a`
3
0
'C
O
N
T TYPE 2
0
U
U
d
a
NOTES:
1 . AN OVERFLOW PROTECTION DEVICE, PER CCCSD'S APPROVED MATERIALS LIST, IS
REQUIRED ON ALL SIDE SEWERS. SPECIFIC LOCATION SHALL BE DETERMINED BY THE
CONTRACTOR AND THE PROPERTY OWNER.
0
a`
r 2. SEE APPROVED MATERIALS LIST FOR TRAFFIC AND NON—TRAFFIC AREA PRECAST
0
UTILITY BOXES AND GRATED LIDS.
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 614 o
Page 268 of 297
DWG 22-06
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
CLEAN CHECK PROTECTION DEVICE
6" BWOD—__�
FINISH GRADE
� I I
I I
I I
I I
I I
I I
I I
I I
I I 6"
I I
I I
FLAP ASSEMBLY
I
I I
I I
I I
I I
TO TRUNK
MAIN
LOWEST FF
E 1 OR 2 ---
PD
CLEAN OUT i _z
CAP
FINISH GRADE
3"
I I
� I I
a I I
v
I I
� I I
I I
d I I
a FLAP ASSEMBLY 6"
I I
� I I
d
U I
� I I
� I I
Ui I I
I I
N I I
T
TO TRUNK
MAIN
a
y
9
`m
9
c
TO BUILDING
CONNECTION
U
d
O
a`
Y
0
N
O
N
T
R
W
June Regular Board meeting Agencla PaCKet- Page bib ot 771
Page 269 of 297
DWG 22-07
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
CLEANOUT RISERS
z SEE PLUG z z z
CONNECTION
DETAIL BELOW. MPT MPT MPT
FINISH PLUG PLUG PLUG
GROUND
NOTES: 7
1 . CLEANOUT SHALL BE
THE SAME SIZE AS "
THE SIDE SEWER. L
SEE DWG 22-05 FOR CLEANOUT O a_
OVERFLOW RISER z>-
PROTECTION DEVICE w_
DETAILS. 1/8" BEND Li
2. CLEANOUT RISER COUPLING
PIPE SIZE SHALL
MATCH CLEANOUT
SIZE.
3. MAXIMUM DEPTH 36" IN LINE RISER SANTEE
z
ANGLE POINT RISER
MPT MPT
FINISHH
GROUND PLUG GROUND PLUG
COUPLING SOLVENT
WELD
JOINT
MAX.
SPIGOT/HUB SLIP SP x FPT
SP x FPT
PLUG CONNECTIO TAIL D=
TWIN CLEANOUT COW1MB
REDUCER OR
COUPLING
MINIMUM 4" MPT PLUG
CLEANOUT RISER
SEE NOTE 2
d C. I. COVER
.e5M PERMANENTLY
PAVEMENT SURFACE MARKED "SEWER"
ANGLE POINT CLEANOUT \VA\VA\VA NA NO��
PLAN VIEW z
N Q0> N
N
T
Ill
NOTES: ,a
N 1 . ANGLE POINT CLEANOUT REQUIRED IF CAST-IN-PLACE
SIDE SEWER DEFLECTIONS EQUALS OR CONCRETE
EXCEEDS 90°
N 2. SEE APPROVED MATERIALS LIST FOR 12" 12"
TRAFFIC AND NON-TRAFFIC AREA
o PRECAST UTILITY BOXES AND GRATED
a LIDS.
Y
R 3. 6" SEWER LINES REQUIRE 6" CLEANOUTS CLEANOUT RISER IN PAVED AREA
T
R
W
June Regular Board meeting Agencia PaCKet- Page b 76 Ot III
Page 270 of 297
DWG 22-08
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
SIDE SEWER REPAIRS
SIDE SEWER BREAK SIDE SEWER BREAK
NO CONFLICT IN GRADE NO CONFLICT IN GRADE
NEW
p/ - EXISTING UTILITY
EXISTING E
SIDE SEWER UTILITY
PIPE
EXISTING SIDE SEWS
BREAK BREAK
TYPE 1 AC L HALL
TYPE 1 BACKFILL SHALL BE US 0
BE USED FOR ENTIRE REPAI EA. NEW
REPAIR AREA. 18" UTILITY 8"
MIN 4"X4" RUB PIPE MIN
35-45 DURO.
BETWEEN PIP N 1 "
COUPLING OR LESS CL
EXISTING
SIDE SEW
COUPLING WITH
X18» PROPER ADAPTER.
MIN 4"X4" RUBBER EXISTING
SIDE SEWER
35-45 DURO OUP X18"f
NEW UTILITY PIPE PD SN
B TH MIN COUPLING
PIP EN 0.
REPAIR OFCR G
PIT I REPAIR
NOTES: 1 . REFER TO SEC N 33 31 1 ERALS AND BUILDING SEWERS FOR SIDE SEWER DETAILS.
2. ALL EXCAVATIO R REPA SHALL BE EQUAL TO THE REQUIRED TRENCH WIDTH PLUS
18" ON EACH SI
SIDE SEWER WITH CONFLICT IN GRADE
MIN. SLOPE 2% WITHOUT
SPECIAL APPROVAL
6" MIN
3
a
v EXISTING
PIPE
EXISTING PIPE — EXISTING MIN COUPLINGS
w RUBBER REPAIR SEWER
° PAD GRADE
N FITTINGS/COUPLINGS
N
0 4"x4 EXISTING COUPLINGS
RUBBER SEWER GRADE
PAD
N FITTINGS/COUPLINGS 6" MIN
EXISTING
N _ — PIPE
EXISTING PIPE_ _ 4" MIN
U
d
O
a`
r MIN. SLOPE
OF 2% WITHOUT REPAIR
a
SPECIAL APPROVAL
une 16, 2U22 Regular Board Meeting Agenda PaCket- Page o
Page 271 of 297
DWG 22-09
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
CLEANOUT MODIFICATION FOR 8" LATERAL
F/G
6 " BACK WATER
6 " FEMME
APTER
ED
UBB
CSA g z
0
J
wl
m
8X8X8
WYE/COMBO
IV./F
F/G
m
G5 BOX
d
W/GRATED FID
3
d
s
a
U
PVC SLEEVE
3
Vl
'00
Vl
0
N
N
N
IITI
O
U
U
d
a
y
9
`m
9
c
m
Ill
N
U
d
O
a`
Y
0
N
O
N
T
R
W
June Regular Board meeting Agencla PaCKet- Page bid ot III
Page 272 of 297
DWG 22-10
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
SIDE SEWER TAP TO RCP TRUNK SEWER
(VARIANCE REQUIRED)
FSCIPETVARIES
RUNK MAIN O 1 /2 " REBAR
DOWELS ( 4 TYR )
W/EPDXY
/ AR
G
TER
PIPE TYPE
VARIES
TRUNK CONCRETE
MAIN COLLAR
J
L
U
O
LL
C
O
6
O
O
d
NOTES :
• CORE DRILL ONLY
• EPDXY REBAR DOWELS
INTO PIPE
• WATER STOP IS
REQUIRED
U
d
O
a`
Y
N
O
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 619 o
Page 273 of 297
DWG 23-01
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
RV/TRAILER HOLDING TANK DISPOSAL FACILITY
SIGN SUPPORT ANCHORED SECURELY
IN CONCRETE (SEE NOTE 1)
SIGN—/ SUPPORT WITH 4"x4" POST ANCHORED
I SECURELY IN CONCRETE
4'-0" MAX
XLOPE
PAD 2" VENT
WITH
"x10"
FABRIC PRECAST
UTILITY BOX
CAST COVER IN SLAB SO LIP
OF OPENING IS FLUSH FOR
WASHDOWN
o
ITHIS FACE TO BE
MILLED FLAT
0
L FINISH
VAREC FIG 46 MODIFIED DRAIN HOLE
TRAFFIC BOLLARD COVER FOOT OPERATED, CAST IRON
PLA BODY, BRONZE COVER, TIGHT AT 3.5
NOT TO E OZ. PRESSURE OR AN APPROVED
EQUAL.
18 GA. METAL - DRAIN HOLE
WHITE BACKGROUND 2"
BLACK LETTERS COVER DETAIL
NOT TO SCALE
TRAFFIC SIG
BOLLARD (SEE NOT _
0
rn I
9 0
•U
R
LL
N
Ul
O �
DRAIN HOLE I
COVER D
(SEE DETAIL)
a
0
5 FINISHED
GRADE
1i 11.... �Ai NOTE:
1 . REQUIREMENTS FOR SIGN
L_j TO BE ESTABLISHED BY
0 CCCSD PRIOR TO INSTALLATION.
TEE FITTING
CLEANOUT TO GRADE
(SEE DWG 22-07)
U
d
O
a` y
Y
TWIN CLEANOUT ELEVATION
P-TRAP FITTING
6" DIA PIPE NOT TO SCALE
une egu ar soarci meeting Agencia HaCKet- Hage bdu o
Page 274 of 297
DWG 23-02
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
GREASE INTERCEPTOR
(TYPICAL; 1000 GALLON MINIMUM)
SAMPLING
MANHOLE/BOX
PER DWG 23-05
r , r CLEANOUT
I I I I
I I I I
q I II I q
I I I I
I I I I
I I I I
I FLOW
6" INLET
I I I
I I I I
I I I I
I I I I
I I I I
I I I I
IL
I I I
L_ —_J L_______ J 6" OUTLET
PLAN VI
STANDARD TOP (MH FRAMES, COVERS & RING SHOWN
BLOCKS REQUIRED 24" CAST IRON FRAME LING SEE
AT EACH MANHOLE AND COVER HOLE/BOX NOTE 7
COVER, EXCEPT NO PER DWG 23-05
CONE FOR 9"
5' MAX
CLEANOUT
6" OUTLET
r(SEENOTET
� _
6" NEED COMBO
NOTE: WYE CLEANOUT
SEE DWG 22-07
FOR DEPTHS
OVER 5' ,
SPECIAL n
APPROVAL FOR Li 6" OUTLET
SPECIALLY Q
ENGINEERED >
INTERCEPTOR
INTERCEPTOR PER APPROVED
o MATERIAL LIST
N N
8
SEE DWG 19-01 FOR BEDDING
& FOUNDATION DETAILS
a SECTION A-A
v
NOTES:
d
1 . INTERCEPTOR SHALL BE PLACED ON A MINIMUM OF 6" TYPE I BEDDING
MATERIAL, COMPACTED TO 95% RC.
N
2. ALL ELEVATIONS SHALL BE APPROVED BY CCCSD PRIOR TO INSTALLATION.
T
"0 3. GREASE INTERCEPTORS ARE NOT INTENDED FOR THE INTRODUCTION OF
DOMESTIC SEWAGE. LOCATION AND TRIBUTARY DISCHARGE SOURCES
SHALL BE APPROVED BY CCCSD PRIOR TO INSTALLATION.
a
fn
4. INTERCEPTOR LOCATED IN AN AREA SUBJECT TO TRAFFIC MUST BE H-20
TRAFFIC RATED. NON—PRECAST INTERCEPTORS ACCEPTED UPON SPECIAL
N APPROVAL.
5. ALL INLET AND OUTLET PIPES SHALL BE 6" DIAMETER.
0
g` 6. THE USE OF CAST IRON SOIL PIPE FOR GREASE INTERCEPTOR
Y APPLICATIONS IS PROHIBITED.
N
7. SEE APPROVED MATERIALS LIST FOR TRAFFIC AND NON—TRAFFIC AREA
PRECAST UTILITY BOXES AND GRATED LIDS. SEE DWG 19-08 & 19-09 FOR
COVER REQUREMENTS.
une I b, 2U22 Regular Board Meeting Agenda PaCket- Page 681 o
Page 275 of 297
DWG 23-03
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
SAND-OIL INTERCEPTOR
(TYPICAL; 320 GALLON MINIMUM)
I jl SAMPLING
II MANHOLE BOX
II PER DWG 23-05
I I I I
II CLEANOUT
Ai clj �
A
�6" INLETFLOWII
I I I I
I I I I
I I I I
_t
I I I
I II 6" OUTLET
I I I
L___________________J
PLAN
(MH FRAMES, COVERS & 7l T SHO
STANDARD TOP BLOCKS SAMPLING
REQUIRED AT EACH MANHOLE/BOX [SEE NOTE 6
MANHOLE COVER 24" CAST IRON FRAME COVE PER DWG 23-05
m
5'
MAX
CLEANOUT
6„ 6" OUTLET
INLET
PIPE J1 I - ONE WAY
NOTES: CLEANOUT
1 . FOR DEPTHS
OVER 5' ,
SPECIAL
APPROVAL
FOR SPECIALLY
ENGINEERED
INTERCEPTOR PRECAST INTERCEPTOR
PER APPROVED MATERIAL
2. TOP OF INLET 24" LIST
TO TOP OF
m FRAME AND <
COVER. j
o` SAME AS
GREASE
INTERCEPTOR SEE DWG 19-01 FOR BEDDING
& FOUNDATION DETAILS
SECTION A-A
NOTES:
1 . INTERCEPTOR SHALL BE PLACED ON A MINIMUM OF 6" TYPE I BEDDING
MATERIAL, COMPACTED TO 95% RC.
N
T
0 2. ALL ELEVATIONS SHALL BE APPROVED BY CCCSD PRIOR TO
INSTALLATION.
U
d
9 3. SAND-OIL INTERCEPTORS ARE NOT INTENDED FOR THE INTRODUCTION OF
DOMESTIC SEWAGE. LOCATION AND TRIBUTARY DISCHARGE SOURCES SHALL
BE APPROVED BY CCCSD PRIOR TO INSTALLATION.
Ill
4. INTERCEPTOR LOCATED IN AN AREA SUBJECT TO TRAFFIC MUST BE H-20
d TRAFFIC RATED. NON-PRECAST INTERCEPTORS ACCEPTED UPON SPECIAL
'o^ APPROVAL.
a`
Y 5. ALL INLET AND OUTLET PIPES SHALL BE 6" DIAMETER.
N
N
6. SEE APPROVED MATERIALS LIST FOR TRAFFIC AND NON-TRAFFIC AREA
PRECAST UTILITY BOXES AND GRATED LIDS. SEE DWG 19-08 & 19-09
N
FOR COVER REQUIREMENTS.
June egu ar soara meeting Agencia FaCKet- Hage o
Page 276 of 297
DWG 23-04
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
CONCRETE TRAFFIC SLABS FOR GREASE INTERCEPTORS OR
SAND - OIL INTERCEPTORS
(REQUIRED FOR NON-TRAFFIC RATED INTERCEPTORS)
#6 BARS
@ 6" O.C. (W) SEE DETAIL BELOW
FOR MANHOLE
#3 BARS REINFORCING
#4 BARS @ 6" O.0 @ 18" O.C. (L ) DETAIL
EACH WAY
-----I r -----I r-----I
I I I I I I
I I I I I I
II I II I
I I
I I I I
I I I
I I
I I I
I I I I
j 6" T I 19" THICK
SLA II j SLAB REQ'D
I REQ ED
--————————————IL-----I — --------- -----I
CASE " CASE "B"
CAR/SMALL DE Y EMI-TRUCK & GARBAGE
TRUCK ON TRUCK
0
a
v
U
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a
c
m
O
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a
, e d
V o e
C d d
N � \
lig \� I 2 - REINF. BARS
LL { SIZE EQUAL OF REINF. I I pol
IN REMAINDER OF SLAB
b,I
� I I idd' I I I l as
��. REINF. BARS SIZE I I I I
---�-- EQUAL TO REINF. IN 4al ____I I
REMAINDER OF SLAB ---- I T
M �
N
T
O
MANHOLE AREA REINFORCING DETAILS
a
M
A
c
A
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d
O
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N
O
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 683 o
Page 277 of 297
DWG 23-05
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
PRECAST SAMPLING STRUCTURES
(SEE APPROVED MATERIALS LIST)
SAMPLING MANHOLE
(OUTSIDE)
STANDARD TOP BLOCKS 24" CAST IRON BOLT-DOWN
REQUIRED, SEE DWG 19-01 FRAME & COVER WITH GASKET
FOR DETAILS. (GASTIGHT) STANDARD
FADJUSTIVENT
OR 12„
A
EDED
i
24" DIA
NON-SHRINK
24" DIA GROUT
PLAN
------- 6„ MIN.
12" MAX.
S G 19 OR BEDDIN
& TION LS.
SECTION A-A
NOTE: 1. C IRON COVE LL READ "SANITARY SEWER".
SAMPLING BOX
(INSIDE ONLY)
m
3
a
vi
METAL COVER
LIFT HOLE
---------1 1" DIA MINIMUM
c I777777,777777
a B 1 B
ti
� I I
N
N
T
Ill
U � �
24" MIN
a �
T
9
o SEE DWG 19-01 FOR BEDDING
y PLAN & FOUNDATION DETAILS. 24" MIN
�I
w
U
SECTION B-B
Y
0
N
O
N
T
R
W
June egu ar t3oarci meeting Agencla HaCKet- Hage b64 ot III
Page 278 of 297
DWG 23-06
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
TRASH ENCLOSURE DETAIL
(TYPICAL)
WALL 6" MIN
ABOVE GRADE
a d
CONCRETE
�9 PAD J
d°
4" MIN. PIPE
AREA
DRAIN
29
CLEANOUT
GRADE BREAK G�
GREASE TRAP, IF REO'D OR BERM
(40 LB. + 20 GPM) SEE NOTE
SLOP °
MAIN LINE OR GATE
2%,N
EXISTING SIDE
SEWER
CONCRETE PAD Y °
NOTES:
0 1 . ROOF REQUIRED OVER ENTIRE ENCLOSURE WITH
DOWNSPOUTS DIRECTED AWAY FROM ENCLOSURE.
2. A P—TRAP SHALL BE INSTALLED IMMEDIATELY
w` DOWNSTREAM OF AREA DRAIN IF NO GREASE
TRAP REQUIRED.
3. GREASE TRAP SHALL BE INSTALLED IF TRASH
M ENCLOSURE SERVES ANY COMMERCIAL FOOD
SERVICE USE & AS DETERMINED BY ENVIRONMENTAL
COMPLIANCE FOR ALL OTHER APPLICATIONS.
0
U
4. ALL PIPING TO BE 4" MIN. SIZE INCLUDING
INLET/OUTLET OF GREASE TRAP.
5. LOCATION OF GREASE TRAP & C/O VARIES
WITH APPLICATION.
Ill
6. IF INSTALLED OUTSIDE PF ENCLOSURE, TRAFFIC
'o
RATED LID IS REQUIRED.
Y 7. MAY ALSO BE CONNECTED TO GREASE INTERCEPTOR
N
N
O
N
T
R
N
June egu ar t3oarci meeting Agencla HaCKet- Hage bbb o
Page 279 of 297
DWG 24-01
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
INDIVIDUAL LOT PUMPING SYSTEM
(CCCSD REVIEW AND APPROVAL REQUIRED)
\ FINISHED
GRADE
THRUST BLOCK
a
® \ /
MAIN
SEWER CONTROL PANEL WITH
VI UAL AND AUDIBLE
SEE DETAIL A A MS REQUIRES
BELOW & DWG 22-07 S ELECTRICAL
ER ROM LOCAL
JU ION).
W
E P ION
DEVICE
THRUST BLOCK
FROM
BUILDING
ISOL N VALVE DRAIN
C VALVE
FLOAT SWITCHES:
SEE NOTE 5-\ W LL/ P
HIGH ALARM/ 2nd PUMP ON
1st PUMP ON
ZIP PUMP OFF
LOW ALARM
3 CLEANOUT CONCRETE BALLAST
E 6" MIN
y
PUMP
TYPE I BACKFILL
E COMPACTED TO 95% RC
a'
0
GRAVITY FROM ELEVATION
LATERAL TO PUMP (N.T.S.)
MAIN SEWER DISCHARGE NOTES:
FLOW FLOW
TEE 1 . OBTAIN PROCEDURES FOR PRIVATE, INDIVIDUAL LOT,
SEWAGE PUMP APPROVAL AND INSTALLATION BEFORE
PROCEEDING WITH DESIGN.
0
REDUCER
DETAIL A 2. CLEANOUT WITH OVERFLOW PROTECTION DEVICE SHALL
BE INSTALLED AT BUILDING CONNECTION.
NOTES:
3. PUMP INSTALLATION SHALL BE IN ACCORDANCE WITH
I . TEE SHALL BE WYE, SANITARY TEE OR SECTION 33 32 26.
COMBO WYE.
0 4. SEE SECTION 31 23 16 FOR BEDDING AND
r 2, FOR COMMERCIAL PROPERTIES, 6-INCH TEE, BACKFILL REQUIREMENTS.
CLEANOUT, AND GRAVITY LINE IS REQUIRED.
5. SEE APPROVED MATERIALS LIST FOR TRAFFIC AND
a 3. SOLVENT WELD TYPE JOINTS SHALL BE USED NON-TRAFFIC AREA PRECAST UTILITY BOXES AND
FOR PVC PIPES. GRATED LIDS.
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 686 o
Page 280 of 297
DWG 24-02
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
MULTIPLE-USER, LOW-PRESSURE SEWER SYSTEM
MANHOLE
3" SCHEDULE 40 PVC DRAIN TO
VALVE AND SPLASH BLOCK AT
DAYLIGHT WHERE SHOWN ON PLANS
12"m X 4" DEEP a
SUMP, AS REQUIRED
4" PVC PIPE: AWWA
C-900 (DR 14), IF 14O
3' TO 4' . COVER, DR
18 IF OVER 4' MIN. (TYR)
COVER. O
7
FLOW — -- _
SCHEDULE 40 1 "
® BRASS PIPE (AT
FLUSHING INLETS
3 ONLY)
3 °
a
ai
0
L
C
R d
E ° °
a I�
3
TYPICAL SERVICE
CONNECTION (PRIVATE)
d 1 4" HDPE (SDR 1 1 )
(4 CONNECTIONS MAX )
(SEE DWG 24-05)
d
d
AL
PLAN
NOT TO SCALE
e
N
N
T
Ill
O
U
U
d
a
y
T
`m
9
NOTE:
Ill
1 . @ REFERS TO SPEC 33 31 26
'o MATERIAL LIST
a`
Y
0
N
O
N
T
R
W
une egu ar soarci meeting Agencia HaCKet- Hage bs i ot III
Page 281 of 297
DWG 24-03
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
MULTIPLE-USER, LOW-PRESSURE SEWER SYSTEM
FLUSHING INLET
8' MIN
STANDARD MANHOLE FRAME
AND COVER (DWG 19-08)
(ADJUST PER DWG 19 10 IN
/SLOPED AREAS) /1 " MIPT PLUG
34
9 34' ' 8P EN 1 7" GRADE RINGS
�24 4
VARIES
15 0 Ln z
a M HOOP L 1 0
10 '(3'
® 13
z
m
60' ° a
PRECAST MANH CL 2-#4 EACH WAY
B ISCHEDULE 40 1 "
6 CO E Fl OPE BRASS PIPE
20 SUMP 1 " 45° ELBOW
® / 2" SCH 80 PVC DRAIN
$., SCHEDULE 40 1 " BRASS PIPE
1 " 45° ELBOW
6"s CAST-IN OR CORE
z m DRILLED HOLE, TYP. FILL
a ANNULAR SPACE WITH
Ll
F- BAS BE PRECAST OR NON-SHRINK GROUT
CDz CAST-IN-PLACE PER SEC. (AT FLUSHING INLET ONLY)
03 30 00
T
N
d
3
d
6"m CAST-IN OR CORE
DRILLED HOLE, TYP. FILL
ANNULAR SPACE BETWEEN
3 MANHOLE WALL AND CASING
0
PIPE WITH NON-SHRINK GROUT
d
_a
3
SANITARY SEWER FORCE MANHOLE AND FLUSHING MANHOLE
NOT TO SCALE
T
O
U
U
d
,n NOTES:
1 . IF WATER OR SOFT GROUND IS
PRESENT, PLACE COARSE BEDDING
MATERIAL IN GEOTEXTILE WRAP
o (12" OVERLAP AT FABRIC ENDS)
a`
Y 2. (g REFERS TO SPEC 33 31 26
MATERIAL LIST
N
a
N
June 16, 2U22 Regular Board Meeting Agenda PaCket- Page 688 o
Page 282 of 297
DWG 24-04
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
MULTIPLE-USER, LOW-PRESSURE SEWER SYSTEM
CONNECTION AT GRAVITY MANHOLE
MANHOLE
BARREL `d ~
11w__1
o �w
N MAIN SEWER
FLOW FLOW
TYPICAL LOCATION CHANNEL ON SHELF WITH
OF ECCENTRIC CONE �� 2 RI K GROUT
13 1, SHELF
®EXTEND TRACER WIRE TO `
TERMINAL BOARD IN
THROAT 1 ' BELOW COVER
6" CORE—DRILLED HOLE AT SHELF,
FILL BOTH ANNULAR SPACES WITH PE ( 11 ) PRESSURE MAIN SEWER
NON—SHRINK GROUT 4" 00 PVC, OR DIP
3
a
d
0
L
N
T
° a
N
�? 6" CORE—DRILLED HOLE AT
a SHELF, FILL BOTH ANNULAR
MANHOL w SPACES WTH NON—SHRINK GROUT
BARREL w
`o ow
U J� = 2
e SEWER MAI � N�
1a HDPE (SDR11 ) PRESSURE
y MAIN SEWER IN 4" C900—PVC,
3 OR DIP (CLASS 52)
OW F
a FORM CHANNEL
J ON SHELF WITH
y NON—SHRINK
GROUT ®EXTEND TRACE WIRE TO
AL SHELF TERMINAL BOARD IN THROAT
a 13 BELOW COVER
° TYPICAL LOCATION OF ECCENTRIC
A CONE, FRAME, AND COVER
0
U
NOTES:
d
a
9 1 . STANDARD MANHOLE DETAILS ARE
SHOWN ON DWG 19-01
N' 2. @X REFERS TO SPEC 33 31 26
d MATERIAL LIST
0
a`
Y
s CONNECTION MANHOLE
N
NOT TO SCALE
une egu ar soarci meeting Agencia HaCKet- Hage bdg o
Page 283 of 297
DWG 24-05
CENTRAL CONTRA COSTA SANITARY DISTRICT
MARTINEZ, CALIFORNIA
MULTIPLE-USER, LOW-PRESSURE SEWER SYSTEM
MISCELLANEOUS DETAILS
12"
M >ANHOLE zwDWG 19-02 3.4' �'�0
4" PVC P7T�_VC7
VC VC
WITH HDPE(TYP) PRC
TYPICAL PROFILE"
AT MANHO'
NOT TO SCAT
Y" BRASS MACHINE "x3"xYz PE
BOLT WITH ONE HEX RD
NUT (2 EACH BOARD)
O°
3
w 1.75' 1.75' 1.25°
FACE OF
° NOTE: MH THROAT
0
1 . @ REFERS TO SPEC 33 31 Y" EXP. ANCHOR
MATERIAL LIST BOLT WITH 2 NUTS
(2" MIN EMBEDMENT)
E
w
T
3 TRACER WIRE
13 TERMINAL BOARD
3
NOT TO SCALE
a`
0
J
12" 18" 12'
16
✓ 3� I MINI I MIN
z
a 12
N 100% TYPE I - ?
16 BACKFILL
g �� 1 1 90% + R.C. +1
3" WIDE "SEWER"
Un 6�� O5 PRIVATE MARKING TAPE
PUBLIC (PUBLIC R/W)
PRIVATE (PRIVATE R/W) HDPE PRESSURE MAIN °
AND TRACER WIRE IN 4" MINIMUM
4" C900 PVC CASING TYPE 1
TYPICAL SERVICE BEDDING
Y
CONNECTION DETAIL TRENCH DETAIL
a NOT TO SCALE
NOT TO SCALE
une I b, 2022 Regular Board Meeting Agenda PaCket- Page 6yu o
Page 284 of 297
Part Vill . Glossary
Section 25. Acronyms, Abbreviations and Terms
Wherever in these Specifications, or in any documents or instruments where these
Specifications are referenced, any of the following acronyms, abbreviations, or terms
is used, the intent and meaning shall be interpreted as stated in the following
sections unless the context clearly indicates that another meaning is intended.
25-01 Acronyms and Abbreviations
Acronym Definition
AASHTO American Association of State Highway and Transportation Officials
AB Aggregate Base
AC Asphalt Concrete
ACI American Concrete Institute
ANSI American National Standards Ins e
APN Assessor's Parcel Number
ASME American Society of Mechanical E s
ASTM American Society of Testing an ateri
AWS American Welding Society
AWWA American Water Works As iati
BC Beginning of Horizont
BVC Beginning of Vertic I rve
CAD Computer d
Cal/OSHA California Di of ational Safety and Health Act
Caltrans State of epa int of Transportation
CCTV Closed uit Tele n
Central Central tra Cost itary District, also sometimes referred to as
San the Distric CC
CISPI Cast Iron So stitute
CLSM Controlled Low Strength Material
CPC California Plumbing Code - The California Plumbing Code adopted by
the State of California Building Standards Commission, latest edition.
CRSI Concrete Reinforcing Steel Institute
CTM California Test Method
DR Dimension Ratio (pipe O.D. divided by minimum wall thickness)
EC End of Horizontal Curve
EVC End of Vertical Curve
FNPT Female National Pipe Thread
FLIE Fixture Unit Equivalents - The unit equivalent of plumbing fixtures as
tabulated in the Uniform Plumbing Code.
GOE Grant of Easement
gpd Gallons per Day
gpm Gallons per Minute
June Vert ffiW968PBoard Meeting Agenda Packet- Page 691 of 771 261
Page 285 of 297
GRD Grease Removal Device
GWI Groundwater Infiltration
HDD Horizontal Direction Drilling
HGI Hydromechanical Grease Interceptor
HWA High Water Alarm
HWL High Water Level
I.D. Inside Diameter
ILPS Individual Lot Pumping Systems
IOD Irrevocable Offer of Dedication- a legal document used to create
easements
ISO International Standards Organization
LWA Low Water Alarm
LWL Low Water Level
MH Manhole
MNPT Male National Pipe Thread
MULPSS Multiple User Low Pressure Sewer S m
NEMA National Electrical Manufacturers Ass
NRTE Nationally Recognized Testing Entity `
0.D. Outside Diameter
OPD Overflow Protection Device (Se trict 9.1! )
PSSE Private Sanitary Sewer Ease
PTFE Polytetrafluorethylene (Teflon
PUE Public Utility Easement
RC Relative Corr tion- ercent of the field dry density of
the soil or soil at ermine y ASTM D6938) to the
maximum dry s d ined by laboratory test ASTM D1557.
RI Rodding Inle to ry a s structure to a main sewer
RUE Residential it Equiva
RV Recreational icle
ROW Right-of-way
RWQCB Regional Water Quality Control Board
SDR Standard Dimension Ratio (pipe O.D. divided by minimum wall
thickness)
SSE Sanitary Sewer Easement
TMH Trunk Manhole
UL Underwriters Laboratory
UPC Uniform Plumbing Code
USA Underground Services Alert
VOC Volatile Organic Compound
Pipe Types
ABS Acrylonitrile Butadiene Styrene
CI or CIP Cast Iron Soil Pipe or Cast-Iron Pipe
CIPP Cured-In-Place Pipe
DI or DIP Ductile Iron Pipe
Jk�16, 2022 Regular Board Meeting Agenda Packet- Page 692 of 771 Part VIII.Glossary
Page 286 of 297
HDPE High Density Polyethylene
PE Polyethylene
PVC Polyvinyl Chloride
RCP Reinforced Concrete Pipe
VC or VCP Vitrified Clay Pipe
25-02 Terms
Annexation - The inclusion of property within Central San boundaries by proper legal
procedures.
Accessory Dwelling Unit (ADU)- a self-contained, residential unit located on the
same lot as an existing single-family home and includes a kitchen, bathroom, and
sleeping area; where a kitchen is defined as a space with a sink outside of a
bathroom. If the ADU is 1200 square feet or greater, then it will be treated as a
separate residential unit on the property.
Approved Materials List - The current list of a terials allowed by Central
San for use in the construction and/or repair an' ewers in accordance with
these Specifications.
Bedding and Backfill — Material, herein specifi to re material excavated
from trenches during sewer installation. T use ifferentiate between zones
of Bedding and Backfill are:
Pipe Zone: the portion of the e e va tween the bottom of the
trench or the top of required n ati mat a and a horizontal plane 12"
above the highes int o outsid e of the pipe barrel excepting
bells.
■ Bedding ' ion a Pipe Zone between the bottom of the
trench o e top quir foundation material and the lowest point
on the o ide surf f the pipe barrel excepting bells;
■ Haunchin ion of the Pipe Zone between the top of the
Bedding an orizontal centerline of the pipe;
■ Shading is that portion of the Pipe Zone between the top of the
haunching and a horizontal plane 12" above the highest point on the
outside surface of the pipe barrel excepting bells.
Trench Zone: the portion of the trench excavation between the top of the
shading and the ground surface in unpaved areas, and the horizontal plane at
lowest point of the pavement structural section in paved areas.
■ Trench Backfill is that portion of the Trench Zone between the top of
the shading and the ground surface in unpaved areas or a horizontal
plane 2 feet below the lowest point of the pavement structural section
in paved areas;
■ Final Backfill is that portion of the Trench Zone in paved areas
between the top of the trench backfill and the lowest point of the
pavement structural section.
June IPO,�2l��A966UKXBoard Meeting Agenda Packet- Page 693 of 771 263
Page 287 of 297
Board of Directors - The governing body of Central San.
Building Drain - The building drain is the lowest part of a wastewater piping system
and connects other wastewater pipes from within a building with the side sewer.
Central San - The Central Contra Costa Sanitary District, Contra Costa County,
California, and its employees, and/or authorized representatives.
City - Any incorporated municipality lying partly or entirely within Central San.
Contractor - Any contractor who meets Central San requirements and is licensed by
the State of California to enter into contracts for and to perform the work of installing
sewers under Central San jurisdiction.
County - The County of Contra Costa, State of California.
Cut Sheets - Sheets of tabulated data, indicating stations, structures, fittings, angle
points, beginnings of curves, points on curves, ends u es, sewer slopes, staking
offsets, various elevations, offset cuts, and sewe p
Definition of Words - Wherever, in these Specifi , th rds directed, required,
permitted, ordered, designated, or words of like i nce a a they shall be
understood to mean the direction, requirement, a mi , or of designation
of Central San. Similarly, the words approv tab tisfactory, shall mean
approved by, acceptable to, or satisfacto Ce San.
District - The Central Contra Costa S to D' ct, a Costa County,
California, and its employees, and/ thori rep entatives.
DWG # - Refers to the dra as ered i VI. Standard Drawings.
Easements - Rights in rea gra or dedicated to Central San for the
purposes stated in the d men! lis h the easement. Generally, these rights
include the right to const t, recons , renew, alter, operate, maintain, inspect,
repair and replace Centra Faci with the reasonable right of access to such
easements for these purpos a remaining lands of the grantor. See also
District Code §7.15.
Existing Building/Structure — a structure that has a finalized building permit at least
three years prior to the date of application with Central San
Final Inspection - The formal written acceptance by Central San of an entire job
which has been completed in all aspects in accordance with the Plans and
Specifications and any modifications thereof previously issued.
Inspector - The person for Central San duly authorized and responsible for
inspections and enforcement of Central San regulations relating to construction of
public and private sewers, including pipelines, structures, materials, instruments,
and appurtenances.
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Job Engineer - The Engineer licensed by the State of California as a civil engineer,
under whose direction Plans, profiles, and details for the work are prepared and
submitted to Central San for review.
Owner - Any individual, partnership, firm, or corporation by whom the Job Engineer
has been retained or who, as the Property Owner, is making arrangements with
Central San.
Parcel Number - An arbitrary number assigned to each parcel of right-of-way,
including easements and miscellaneous encroachments, as shown in the right-of-
way log and/or on the sewer construction plans.
Paved Surface - Any form of pavement used on street, sidewalk, or other areas
composed of concrete, asphalt, oil, brick, or treated crushed rock or any combination
of said forms of pavement having a dense, cohesive, stable surface.
Permits or Licenses - Documents indicating permi 'on or authorization to perform
specific work under specific conditions at spe ' S.
Person - Any individual, firm, company, corp ciation.
Plans - Construction plans, including system ewer nd profiles, cross
sections, detail drawings, etc., or reproduc ' s the which show the location,
character, dimensions, and details for be and which constitute a
supplement to these Specifications.
Plumbing System - Plumbing fixt d s, and vent pipes, and all sewer
pipes within a building d ext g to th o or side sewer connection two feet
outside the foundation r b wall.
Profile - Cross-section ide ) drawing which show the vertical
relationship between sew e in , the ground surface at time of construction
and the finish surface d other ting and/or proposed underground facilities.
Property Owner - The holds record title to a parcel of property.
Private Sewer - A sewer owned, operated, and maintained by the Property Owner
(i.e. not owned by Central San).
Public Sewer - A sewer located in a public right-of-way, easement or dedicated
reservation which has been accepted by Central San or is maintained and controlled
by the Central San.
Right-of-way - All land or interest therein which by deed, conveyance, agreement,
easement, dedication, usage, or process of law is reserved for or dedicated to the
use of the general public, within which Central San shall have the right to construct,
alter, replace, repair, maintain, and operate sewer pipes, appurtenances, and
appliances together with the reasonable right of access to such easement for said
purposes over the remaining lands of the grantor.
Roadway - All right-of-way dedicated, granted, used, or to be used for vehicle
movement.
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Sanitary District - The Central Contra Costa Sanitary District, Contra Costa County,
California.
Sanitary Sewer System Map - Scale maps on the first sheet or sheets of the Plans
showing the relationship and ties between the properties to be improved and the
nearest intersection of existing county or city improved road on each side of the
property. The system maps also show all proposed sewer improvements and all
parcels to be served by the improvements.
Section - Any reference to a Section which is not accompanied by further reference
refers to a Section or Sections of these Specifications.
Sewers: A pipe or conduit for holding and carrying sewage, and includes manholes,
rodding inlets, pressure relief valves and all other facilities appurtenant which are
necessary or convenient to the holding or carrying of sewage.
• Trunk Sewers - a public sewer which is 12" or re in diameter and
accommodates more than one main sewe
• Main Sewer - a sewer which has one or rs connected to it
• Side Sewer - the privately owned and mai sew e connects the
plumbing system of a building to the sew e a Sid ewer begins at
the point-of-connection to the main ter es at the point-of-
connection to the building plumbin Ste et o ide the foundation line
or building wall. "Side sewer" i lu t ate wer and the building
sewer:
o Later we t porti a side sewer which is within the
public ri f-w hich may also be referred to as the "lower
latera "
o Buil Se we at portion of the side sewer from the lateral
sew its con on to the building plumbing system, which
may a r ed to as the "upper lateral"
Single-Family Residence (SFR) - A single living structure designed to accommodate
one family.
Special Approval - Approval given by Central San, either in writing or as approved
on the plans, for special construction considerations which may not meet the
regulations and/or standards set forth in these Specifications or District Code.
Specifications - The Central San Standard Specifications for Design and
Construction, latest edition.
Standard Drawings - The drawings of structures or devices commonly used on
Central San work and referred to on the plans and in these Specifications.
State - The State of California
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State Standard Specifications - The Standard Specifications of the State of
California, Business and Transportation Agency, Department of Transportation
(Caltrans), current edition.
Streets or Roads - Any public or private highway, road, street, avenue, alley, way,
easement, or right-of-way used or to be used for vehicle movement.
Structures - Those structures or devices commonly used in Central San work such
as manholes, rodding inlets, etc., as mentioned in these Specifications.
Subcontractor - Any individual, partnership, firm, or corporation entering into a
contract with the Contractor to perform part of the work.
Superintendent - The representative of the Contractor, present and responsible for
the work at all times.
Surveyor - A Professional Land Surveyor or Profe ional Engineer (Civil) licensed by
the State of California to perform land surveyi
Travelled Way - The portion of the roadway h ent of vehicles, exclusive
of shoulders and auxiliary lanes.
Variance —A variance is a deviation from District or S ications for Design
and Construction requested by an Appli ing t sign or plan review stage.
Any variances requested at the time of rmit r co uction shall be through a
Special Approval only.
Work - All work to be done and ntral n pe it or inspection, in accordance
with the Plans, these ifica , and/o conditions.
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Part IX Index
100 linear feet of trench, 72, 128 Application
11.250, 162 air test, 9
24 hours, 92, 101, 145 Dye Test, 9
AASHTO, 134, 137, 149, 178, 261 Public Sewer Locating, 9
AB, 136, 137, 261 Pump Review, 8
abandonment, 7, 74 Right-of-Way, 9
ABS, 166, 167, 188, 195, 262 Surveying, 9
AC, 134, 136, 137, 140, 261 Approved Materials List, 18, 40, 77,
Acceptance of Proposed Public 78, 87, 88, 94, 97, 104, 105, 107,
Facilities, 76, 93 119, 120, 149, 151, 156, 158, 164,
ACI, 82, 83, 84, 85, 87, 88, 90, 91, 261 1 1 , 180, 182, 183, 186, 187,
Acrylonitrile Butadiene Styrene. See 8 , 191, 194, 195, 196, 198,
ABS
Aggregate Base. See AB ist R
alignment, 8, 18, 42, 44, 50, 95, 106, c th, 4
151 SM 261
all-weather access road, 47, 140, 141 halt rete. See AC
amalgam separator, 25 or's Parcel Number. See APN
American Association of State AS 8, 82, 83, 87, 88, 94, 95, 99,
Highway and Transp rtation , 101, 104, 106, 107, 1197 120,
Officials. See AASH 21, 123, 124, 125, 132, 134, 136,
American Concrete Instit ee 137, 142, 143, 145, 148, 1497 155,
American National Sta titu 160, 161, 163, 164, 165, 166, 167,
See ANSI 1687 1697 170, 173, 175, 1767 177,
American Society of hanical 179, 180, 261, 262
Engineers. See AS AWS, 104, 106, 1077 1627 261
American Society of Tes AWWA, 142, 145, 157, 158, 160, 161,
Materials. See ASTM 1627 163, 164, 173, 175, 176, 261
American Water Works Association. backfill
See AWWA final backfill, 126, 131, 132, 263
American Welding Society. See AWS trench backfill, 96, 131, 132, 136,
angle of intersection, 18 263
annexation, 4, 263 BC, 261
request and petition, 55 bedding, 124, 125, 263
ANSI, 21, 104, 162, 261 Beginning of Horizontal Curve. See
APN, 4, 50, 261 BC
Applicant, 7, 17, 29, 31, 33, 38, 41, Beginning of Vertical Curve. See BVC
140, 185, 193 benchmark, 34, 184
application, 7, 30 Board of Directors, 50, 51, 264
Building Permit Plan Review and bolts, 104, 105, 107, 1627 1717 204
Encroachment Verification, 9 boring and jacking, 16, 186, 194
Service Request Applications, 9 building drain, 264
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building sewer, 266 Concrete Reinforcing Steel Institute.
building waste plumbing, 17, 18 See CRSI
BVC, 261 connections to existing structure, 45
C900, 19, 41, 42, 164 Contra Costa County Fire Protection
CAD, 261 District, 140
California Division of Occupational Contra Costa County Health Services
Safety and Health Act. See OSHA Department, 21
California Plumbing Code. See CPC Contra Costa Local Agency Formation
California Test Method. See CTM Commission, 4
Caltrans, 71, 124, 134, 135, 137, 138, Controlled Low Strength Material. See
140, 261, 267 CLSM
Capacity Study, 35, 55 Corner Record or Record of Survey, 3
car wash, 23 coupling, 156, 162
casings, 41 cover
Cast Iron Pipe. See CI or CIP allow le cover, 19, 42
Cast Iron Soil Pipe Institute. See b& anhole frames and
CISPI ov
CCTV, 10, 16, 31, 68, 76, 142, 143, r, 18, 185, 193
146, 261 cov
centerline, 42, 43, 49, 50, 59, 130 m n 138
Central San, 48, 50, 105, 261, 264 por 49, 152
Central San job number, 50 v 138
Central San's emergency dispatch, 75 c r frames
Certificate of Compliance, 79 ast , 106
Certification Report, 123 C , 261
check dam, 46 , 42, 43, 44, 75
check valve, 20, 196, 198, 2 sewer crossings at creeks, 43
Cl, 262 top of creek bank, 42
CIP, 155, 156, 262 C RS 1, 82, 83, 261
CIPP, 16, 17, 186, 262 CTM, 125, 261
CISPI, 261 cul-de-sac, 45
Class 2 Aggregate Base, 12 Cured-In-Place Pipe. See CIPP
130 curve
Class 52, 42, 158 curve data, 40, 204
cleanout, 8, 191, 204, 205 horizontal, 40
clearance, 18 vertical, 39, 40
vertical and horizontal, 39 cut sheet, 58, 59, 60, 70, 184, 264
Closed Circuit Television. See CCTV cut stakes, 58, 59, 184
Closure Report, 50 datum, 34
CLSM, 94, 95, 96, 125, 130, 261 deflection at structures, 45
Coarse Bedding Material, 125, 132, deflection/delta angle, 40
150 dental, 25
cold or hot mix temporary asphalt, 133 DI, 42, 262
commercial sewer, 18 diatomaceous earth filters, 28
Competent Person, 69, 127 Dimension Ratio. See DR
Computer Aided Design. See CAD DIP, 40, 43, 145, 157, 262
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directional drilling, 168, 172 easement, 4, 7, 15, 29, 42, 43, 48, 49,
dishwasher, 21, 22 50, 51, 52, 53, 59, 71, 150, 152,
District Code, 1, 2, 4, 5, 10, 11, 12, 20, 191, 264
21, 25, 26, 35, 48, 49, 63, 67, 68, EC, 261
69, 76, 189, 191, 262, 264, 266, 267 electrofusion coupling, 172
DR, 42, 261 emergency, 122
DR-14, 197 emergency work, 10
drain rock/foundation rock, 125, 126 encroachments, 15
drainage fixture units, 21 End of Horizontal Curve. See EC
drop across structure, 44 End of Vertical Curve. See EVC
Ductile Iron Pipe. See DI or DIP enforcement, 1
dump stations, 46 Engineer, 1
Durability Index, 125 Geotechnical Engineer, 39, 43, 132
DWG 19-01, 18, 45, 148, 150, 152, Job Engineer, 34, 35, 36, 41, 43, 49,
153, 187 JL1, 58, 59, 70, 184, 192, 265
DWG 19-02, 45 nal Engineer, 23, 24, 33,
DWG 19-05, 181 5 73, 123
DWG 19-06, 45 es, 22, 24
DWG 19-08, 106 261
DWG 19-09, 46 e p ' n, 9, 3, 55
DWG 19-11, 152 terio conditioning unit, 27
DWG 19-12, 149 10, 31
DWG 19-13, 152 ection, 8, 30
DWG 19-14, 153 i ction, 146
DWG 20-01, 35, 178 pection charges and permit, 3
DWG 20-05, 46, 127, ermit, 26
DWG 20-06, 131 plan review, 58
DWG 20-07, 39 re-television inspection, 147
DWG 20-08, 141 Female National Pipe Thread. See
DWG 21-01, 40, 165, 8, 181 FNPT
DWG 21-03, 127 filter backwash, 28
DWG 21-04, 46, 182, 18 Final Inspection, 75, 76, 123, 264
DWG 21-08, 143 Final Review for Construction, 61
DWG 22-01, 18, 59 fittings
DWG 22-05, 190 deflection fittings, 162
DWG 22-07, 19 Fixture Unit Equivalents. See FUE
DWG 22-08, 191, 195 floor drain, 21, 23, 26
DWG 23-01, 27 flow control fitting, 22, 24
DWG 23-02, 21, 23 flow restrictor, 28
DWG 23-04, 22, 24 flushing inlet, 45, 196, 198, 199
DWG 23-05, 25 FNPT, 198, 261
DWG 23-06, 27 food service, 21, 27
DWG 24-01, 205 frames and covers, 143, 148, 149,
DWG 24-02, 45, 196, 198, 199 151, 153
DWG 24-03, 45, 199 FUE, 17, 261
DWG 24-04, 197 Gallons per Day. See gpd
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Gallons per Minute. See gpm inspection, 3, 10, 16, 21, 22, 24, 31,
garbage disposal, 22 67, 68, 76, 77, 90, 105, 109, 120,
gasket, 149, 151, 159, 162, 164, 165, 142, 146, 173, 174, 176, 183, 186,
167, 173, 178, 180 187, 194, 201
Geotechnical Report, 42, 55 Inspector, 7, 10, 12, 31, 67, 68, 69, 70,
geotextile, 119, 120, 121, 129, 138, 71, 72, 73, 74, 75, 77, 78, 90, 100,
150 105, 108, 123, 124, 125, 127, 128,
foundation rock, 119, 121, 126 129, 142, 143, 144, 145, 146, 147,
paving, 120, 121, 122 150, 151, 153, 155, 161, 170, 174,
GOE, 261 184, 185, 187, 192, 193, 195, 200,
gpd, 261 201, 264
gpm, 17, 22, 24, 200, 261 insurance
Grant Deed, 49, 53 general liability insurance, 11
Grant of Easement. See GOE workers' compensation insurance,
GRD, 23, 262 11
grease interceptor, 8, 21, 22, 25, 27 inte 22, 23, 24, 25
Grease Removal Device. See GRD In ati tandards Organization.
grease trap, 8, 21, 22, 23, 27
grinder, 22 IOD 50, 2
Groundwater Infiltration. See GWI Irre cOffer edication. See
GWI, 262
H-20, 22, 24, 97, 106, 129, 149, 178, IS 26
190, 202 j0. tions, 165, 178
Hair/Fiber/Lint Traps, 25 ral r, 8, 18, 192, 266
haunching, 126, 130, 263 w er Alarm. See LWA
HDD, 16, 34, 185, 193, 2 ater Level. See LWL
HDPE, 16, 42, 143, 168, Z7 , LWA, 203, 262
172, 197, 198, 199, 20 LWL, 200, 262
HGI, 22, 262 main sewer, 8, 9, 17, 18, 21, 24, 30,
High Density PolyethylenHD 31, 33, 36, 37, 39, 42, 45, 46, 55,
High Water Alarm. See H 58, 63, 71, 74, 75, 78, 144, 150,
High Water Level. See H 170, 171, 186, 187, 188, 193, 194,
hillside, 42, 43, 129 195, 196, 199, 262, 266
Horizontal Direction Drilling. See HDD main sewer extension, 33, 55, 58, 63,
hubless pipe, 156 71, 78, 123
HWA, 202, 203, 262 Male National Pipe Thread. See
HWL, 203, 262 MNPT
Hydromechanical Grease Interceptor. manhole, 8, 17, 31, 45, 106, 121, 128,
See HGI 136, 144, 145, 148, 149, 150, 151,
1.D., 262 152, 153, 197, 262
ILPS, 196, See Individual Lot Pumping connection of new sewer to the
Systems existing sewer system, 38
indemnify, 12 connection to existing, 45, 187
Individual Lot Pumping Systems, 15, downward adjustment, 153
196, 200, 262 future sewer line extensions, 40
Inside Diameter. See I.D. installed at creek crossings, 44
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lateral connections, 18 Overflow Protection Device. See OPD
located on slopes, 152 Owner, 29, 31, 48, 51, 67, 71, 265
metering, 46 Property Owner, 1, 4, 7, 10, 20, 29,
MULPSS manholes, 45, 196, 198, 48, 49, 52, 68, 72, 127, 190, 191,
199 192, 201, 265
precast, 148, 149, 150, 151, 198 Owner's Sewer/Recycled Water
protect openings during Improvement Agreement, 58
construction, 151 parcel number, 265
side sewer connection to public parking structure, 26
sewers over 12" in diameter, 17 passive overflow drain, 28
special cul-de-sac, 45 PE, 263
SS markings, 106 permit
standard, 33 Abandonment/Demolition/Sewer
stationing of, 45 Capping, 7, 191
trunk, 46, 262 B 'Idling Connection Permit, 30
upward adjustment, 153 ty permit, 31
VCP entering and leaving, 181 ff Period, 9, 10
maximum allowable deflection, 18 oa ent permit, 12, 71, 75,
MH. See manhole 3, 90, 102, 106, 110,
microbes, 21, 22, 24 127, , 132, 134, 135,
M N PT, 198, 262 1 50, 156, 158, 162, 167,
MULPSS, 45, 196, 198, 262 171, , 180, 199, 203
Multi-Family Residence, 36 vation Permit, 3, 12, 127
Multiple User Low Pressure Sew e and/or Sand-Oil Interceptor,
System. See MULPS
NACE, 111 ndustrial User Permit, 26, 27
National Electrical Manuf ers Manhole Only (Public), 8
Association. See N new connection, 7
Nationally Recognize esting Y. Recycled Water Connections Only,
See N RTE 9
native material, 125 Recycled Water Main Extensions, 8
NAVD88, 34 Sewer Extension Permit, 51, 55
NEMA, 202, 204, 262 Side Sewer Building Connection, 30
NGVD29, 34 Side Sewer Extension, 8
no sag, 16 Side Sewer Repairs and Alterations,
nominal diameter, 85, 144, 149 8
non-domestic, 21, 24 Side Sewer Tap and Lateral, 8
NRTE, 201, 202, 203, 262 Special Discharge Permit, 17, 28
0.D., 178, 261, 262 Trash Enclosure, 8
OPD, 15, 20, 190, 191, 192, 203, 262 Permitted Industrial User, 25
open-cut, 15, 34, 184, 185, 193 pet waste, 28
optimum moisture content, 124, 131 pipe anchor, 46
OSHA, 12, 69, 128, 182, 200, 261 pipe bursting, 16, 168, 172, 186, 194
outdoor area, 26 pipe zone, 130, 263
outdoor shower area, 28 Plans, 264, 265, 266, 267
Outside Diameter. See O.D. Final, 57, 61, 69
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plaster trap, 25 Reinforced Concrete Pipe. See RC or
plugs, 31, 40, 142, 144, 145, 146, 150 RCP
temporary, 149 reinforced concrete utility box, 20
plumbing system, 265 relative compaction, 98, 128, 129, 132,
plywood, 10, 129, 152 140, 150, 262
point-of-connection, 1, 8, 17, 18, 19, relative density, 124, 137
38, 74, 184, 186, 187, 192, 194, repair couplings, 187, 188, 195
195, 200 Residential Unit Equivalent. See RUE
pollution prevention, 74 Review for Construction, 69
Polyethylene. See PE RI. See rodding inlet
Polytetrafluorethylene. See PTFE or right-of-way, 12, 71, 72, 134, 262, 265
Teflon Right-of-Way Submittals, 55
Polyvinyl Chloride. See PVC RMA. See Road Maintenance and
pothole, 70 Access Agreements
pressure main sewer, 199 road 265
pretreatment devices, 25 rod g , 45, 149, 150, 153,
Private Main Sewer Systems, 33, 55, , 2
63, 106 R r of-way
Private Sanitary Sewer Easement. RU 262
See PSSE RV, 262
profile, 265 CB, 62
Project Cost Estimate, 57 sa str re, 22, 24, 25
Project Security Deposit, 57 s 28
PSSE, 262 d-o erceptor, 8, 23, 24, 25, 26
PTFE, 198, 262 nit Sewer Easement. See SSE
p-trap, 28 ry Sewer System Map, 266
public sewer, 1, 2, 4, 7, 17, , 5 scale, 85, 107, 108, 1099 143, 173,
52, 106, 191, 265 196
Public Utility Easement. e P schedule 40, 167, 175, 197, 204
PUE, 262 Schedule 40, 19, 115
PVC, 169 42, 143, 163, 16 5, 1 SDR, 262
175, 188, 195, 197, 198, SDR-11, 197, 204
263 SDR-179 16, 19, 42, 169
C900, 42, 163, 164, 197 SDR-26, 18, 19, 41, 42, 164, 165
C905, 429 1639 164 separator, 23, 24, 259 111
schedule 80, 197 septic tank, 191
radius, 40, 106, 1419 1659 1729 178, septic tanks and leach fields, 2
181, 186, 194 sewage pumping systems, 46
RC. See relative compaction Sewer Service Charges, 27
RCP, 145, 173, 175, 177, 178, 195, shading, 126, 130, 263
263 shell building, 25
Record of Survey, 53 side sewer, 4, 7, 8, 17, 18, 21, 24, 71,
Recreational Vehicle. See RV 123, 1459 190, 191, 192, 1939 1959
Regional Water Quality Control Board. 200, 204, 205, 266
See RWQCB Single-Family Residence, 36, 266
sink
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floor sink, 21 pipeline deflection test, 143
mop sink, 21, 23 pipeline leakage test, 144
siphons, 46 vacuum testing, 146, 148
slope, 17, 42 time-restrictions, 68
solids separation/filtration system, 28 T-lock, 202
spa, 27, 28 TMH. See manhole:trunk
Special Approval, 8, 17, 18, 34, 266 tracer wire, 197
Special Structures, 46 trash compactor, 21
Specifications, 266 trash enclosure, 8, 21, 24, 25, 27
SSE, 9, 262 trench dam, 46
stakes, 70 trench plate, 10, 71, 73, 96
Standard Dimension Ratio. See SDR Trench Zone, 126, 131, 132, 263
Standard Drawings, 105, 106, 150, trunk sewer, 8, 38, 42, 145, 266
151, 266 Type 316 stainless steel, 104, 105,
State of California, Department of 17AL, 175
Transportation. See Caltrans ing and Backfill Material,
stationing, 45, 59 98, 126, 130, 140, 151
steel pipe, 16, 43, 160, 161, 162 ing and Backfill Material,
stub, 150 , 126
subbase, 41 262
Subcontractor, 267 der d Services Alert. See USA
subdivision, 72, 75, 192 rwn Laboratory. See UL
subdivision map, 49, 51 n Plumbing Code. See UPC,
subdrain, 43 S PC
Superintendent, 267 u rmitted, 10
survey monuments, 3, 38 C, 21, 22, 23, 262
Surveyor, 3, 50, 58, 59, 2 USA, 69, 70, 262
suspended pipe, 41 utility equipment area, 27
swimming pool, 27, 2 Variance, 17, 21, 22, 23, 24, 33, 38,
taps, 8, 17, 172, 195 44, 267
T-cut, 136 VC, 42, 263
tees, 8, 17, 194, 199 VCP, 145, 179, 180, 181, 188, 195,
Teflon, 198, 262 263
test vehicle service, 23, 27
air or hydrostatic testing, 195 Vitrified Clay Pipe. See VC or VCP
air test, 31, 144, 191 VOC, 109, 262
CCTV inspection, 142, 146, 147, Volatile Organic Compound. See VOC
191, 195 warning tape, 130
compaction testing, 123, 124, 131, warranty period, 76, 147
137 wash area, 21, 24, 27
hydrostatic testing, 145 wyes, 8, 17, 45, 194, 195, 205
manhole, 145
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