HomeMy WebLinkAboutEngineering & Operations MINUTES 05-07-18 Page 2 of 35
_ CENTRAL SAN
CONTRACENTRAL •STA SANITARY DISTRICT 5019 IMHOFF
BOARD OF DIRECTORS:
SPECIAL MEETING OF THE JAtfESA.NEJEDLY
CENTRAL CONTRA COSTA Presrdew
SANITARY DISTRICT DAVIDRentProTem
President Pro Trrie
ENGINEERING & OPERATIONS PAUL H.CAUSE Y
COMMITTEE
MICHAEL J.M
TAD J.PILECKILECKI
PHONE: (925)228-9500
MINUTES FAX: (925)372-0192
mm.centrnlsnn.org
Monday, May 7, 2018
9:00 a.m.
2nd Floor Conference Room
5019 Imhoff Place
Martinez, California
Committee:
Chair Paul Causey
Member Mike McGill
Guests:
Staff:
Roger S. Bailey, General Manager
Katie Young, Secretary of the District
Phil Leiber, Director of Finance and Administration
Jean-Marc Petit, Director of Engineering and Technical Services
Edgar Lopez, Capital Projects Division Manager
Dan Frost, Senior Engineer
Dana Lawson, Senior Engineer (Present during Item # 3.a.)
Nitin Goel, Associate Engineer
1. Call Meeting to Order
Chair Causey called the meeting to order at 9:04 a.m.
2. Public Comments
None.
May 17, 2018 Regular Board Meeting Agenda Packet- Page 496 of 534
Page 3 of 35
Engineering & Operations Committee Minutes
May 7, 2018
Page 2
3. Agenda Items
a. Receive update on Asset Management Program
Ms. Lawson reviewed the presentation provided in the agenda material.
Member McGill questioned how assets were evaluated. Ms. Lawson
stated that staff works with the master plan team to project cost in future
project and historical costs when being tied in directly to assets at a
planning level. They provide a current replacement value and a planning
level estimate.
Chair Causey expressed his strong desires for the Enterprise Resource
Planning (ERP) system to be implemented.
Chair Causey asked if the contractors are providing the asset data. Ms.
Lawson stated that staff is working on that by creating a new version of
the tracking system as part of the improvement.
COMMITTEE ACTION: Received the update.
As an aside, Member McGill expressed his gratitude for the informative Position
Papers and PowerPoint presentations staff create. He stated that he truly
appreciates the hard work and effort.
b.* Review proposed Fiscal Year (FY) 2018-19 Capital Improvement Budget
(CIB) and Ten-Year Capital Improvement Plan (CIP)
Mr. Lopez reviewed the updated presentation (attached).
Member McGill asked if the abandoned pipes were filled with concrete.
Mr. Lopez stated that Central San normally abandons pipes and fills them
with a low-strength concrete.
Chair Causey requested a table be added that would compare the
Strategic Plan goals to the accomplishments.
There was a discussion about current year dollars versus future inflated
dollars.
Mr. Bailey stated that previous year expenditures need to be reflected in
the presentation. Mr. Lopez indicated that this information is shown on the
other tables but that this information can be provided.
Chair Causey asked if the $31.2 million amount (shown as a note on
Table 1, page 136) reflected in the presentation was already contracted
May 17, 2018 Regular Board Meeting Agenda Packet- Page 497 of 534
Page 4 of 35
Engineering &Operations Committee Minutes
May 7, 2018
Page 3
and if the plan going forward included the 3% inflation per year. Mr. Lopez
responded that this is the estimated dollar amount for commitment that
may be incurred by approving the CIB for FY 2018-19.
Regarding the 3% inflation multiplier, Mr. Petit indicated that the Tables in
the CIB and the Ten-Year CIP are expressed in current dollars (First
Quarter 2018). The financial model used to calculate the rates, includes a
3% inflation multiplier per year. Mr. Bailey advised that the financial model
is being used to figure out revenues and how much the District needs to
recover. Chair Causey suggested that staff provide the dollar figure for
future fiscal years in future dollars (i.e., inflated at the estimated 3%per
year.) While this can be done, Mr. Leiber stated that staff is unsure of the
inflation factor nine years from now and can only make an estimate. Chair
Causey stated that the effects of inflation could make it possible for bond
needs in the future.
Member McGill stated if the budget model, when looking at rate increases,
has the 3% inflation incorporated, he was okay showing project cost
estimate in current dollars.
On the slide showing future collection system projects, Chair Causey
inquired if the work in the Town of Danville was included in the project.
Mr. Lopez responded that the design efforts for sewer renovation projects
in the upcoming fiscal year include areas in Danville. Those renovations
may be listed in the future as their own phase if the project in that area
were to exceed approximately 5,000-10,000 linear feet of sewer pipe
replacement. Chair Causey asked when the contract would be awarded.
Mr. Lopez responded early 2019.
Mr. Bailey advised that he tries to meet with the city managers and
mayors in our service area on an annual basis to advise of upcoming
projects in their respective cities.
There was a discussion on climate change which is addressed in the
master plan and is a current concern of the San Francisco Regional Water
Quality Control Board.
Chair Causey asked about the Plant Operation Building (POB) seismic
upgrade and asked why it was not included with the Pump and Blower
Seismic Upgrade. Mr. Petit stated that this project is completed, and that
the POB seismic upgrades will be done with the server room project. Chair
Causey asked if there will be other seismic project retrofits required in the
future. Mr. Frost explained that seismic evaluations, and upgrades
associated with mounting new equipment and water containing structures,
will need to be evaluated.
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Engineering &Operations Committee Minutes
May 7, 2018
Page 4
Chair Causey asked where the cost for future master plan updates and
cost of service updates were budgeted. Mr. Petit stated that the Ten-Year
CIP included budgeted amounts for updates to the master plan. The
update for the cost of service study will be included as part of a future
Operations and Maintenance budget.
When reviewing CIB Tables 2 and 3, Chair Causey asked that if projects
take up multiple lines in a chart that the numbers all be formatted the
same.
Mr. Bailey requested that staff provide an update on the Library for
Pleasant Hill. Mr. Frost stated that he met with the City regarding this and
will bring the information back to the Committee at a future meeting.
COMMITTEE ACTION: Reviewed provided input to staff.
C.* Introduction to the Energy Recovery and Blower Replacement Project
Mr. Petit reviewed the updated presentation (attached).
Chair Causey requested a box be added to the slide regarding pre-design,
entitled improve energy efficiency and sustainability.
Mr. Bailey stated that optimization should present scenarios relative to the
treatment issues that will need to be addressed for both the Recycled
Water Exchange Project and the Energy Recovery and Blower Project.
Mr. Bailey requested slide numbers on the actual slides.
Member McGill asked if the electric blowers would utilize waste heat
generated by the furnace. Mr. Petit explained the process of the blowers
recovering heat to produce power, and that yes, heat recovery equipment
will be evaluated in lieu of increasing the PG&E load.
Chair Causey asked if the contaminated soil relocation can be done in
smaller increments over the next ten years, as it would be cheaper than in
ten years. Mr. Petit stated this will be evaluated as part of the Energy
Recovery and Blower Replacement Project and that doing the soil
remediation over ten years would likely not save money in the long run.
There was a discussion on the future reduction of nutrients and the impact
on this project.
Member McGill inquired as to the length of time to replace the boiler feed
water valve. Mr. Goe/responded an entire day. Mr. Frost stated that this
required an increase in involvement of the Operations Division.
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Engineering &Operations Committee Minutes
May 7, 2018
Page 5
Chair Causey asked what the estimated cost of the preliminary design
would be. Mr. Petit stated$1.2 million is budgeted for next fiscal year in
the CIB and approximately$1.5 million the following year.
COMMITTEE ACTION: Reviewed and provided input to staff.
d. Report on Capital Project budget transfers [Continued from March 13,
2018]
This item was not reviewed due to time constraints.
COMMITTEE ACTION: Requested staff to bring back the report in
July for quarterly review.
e. Receive Capital Projects Division Quarterly Report (January to March) on
Capital Projects, Active Consultant Contracts, Change Order Log, and
Schedule of Bids and Awards
This item was not reviewed due to time constraints.
COMMITTEE ACTION: Requested staff to bring back the report in
July for quarterly review.
f. Receive list of Scheduled/Parking Lot items
COMMITTEE ACTION: Received and provided input to staff.
4. Announcements
None.
5. Future Scheduled Meetings
Monday, June 11, 2018 at 9:00 a.m.
Monday, July 9, 2018 at 9:00 a.m.
Monday, August 13, 2018 at 9:00 a.m.
Member McGill suggested the Committee have double meetings in June
and July due to the number of projects being considered.
6. Suggestions for Future Agenda Items
a. Chair Causey stated that he would like to review the process of the
authorization to go to bid, as it was recommended from a consultant that
the Board authorize projects at time of pre-bid and he would like more
information on the process.
May 17, 2018 Regular Board Meeting Agenda Packet- Page 500 of 534
Page 7 of 35
Engineering & Operations Committee Minutes
May 7, 2018
Page 6
7. Adjournment— at 11:30 a.m.
May 17, 2018 Regular Board Meeting Agenda Packet- Page 501 of 534
Page 8 of 35
Item 3.b.
(Handout)
PROPOSED FISCAL YEAR (FY) 2015-19
CAPITAL IMPROVEMENT BUDGET
Engineering and Operations Committee
May 7, 2018
Presented by
Edgar J. Lopez, PE
Capital Projects Division Manager
�rCENTRALSAN—
May 17, 2018 Regular Board Meeting Agenda Packet- Page 502 of 534
Page 9 of 35
FY 2017-18 MAJOR ACCOMPLISHMENTS
• Completed construction of the Pleasant Hill-Grayson Creek Trunk Sewer
Project. Replaced and installed up to 10,000 feet of trunk sewers in
Pleasant Hill. Abandoned the deteriorated original trunk sewer along
Grayson Creek.
• Replaced approximately five miles of sewers in the Collection System;
achieved 93% overall customer satisfaction rating on surveys received to
date this fiscal year.
• Continuing construction of the Headworks Screening Upgrade Project;
installed two new bar screens and disposal facility, which allows the
screening materials to be removed from the wastewater.
• Completed construction of the Pump and Blower Building Seismic Upgrade
Project.
• Completed Pre-Design of the Solids Handling Facility Improvements,
including scrubber pilot and Pump Station Upgrades.
• Started Pre-Design of the Filter Plant and Clearwell Improvements Project.
• Started construction of the water upgrades under Piping Renovation —
Phase 9.
2
May 17, 2018 Regular Board Meeting Agenda Packet- Page 503 of 534
Page 10 of 35
PROPOSED FY 2418-19
CAPITAL IMPROVEMENT BUDGET
Fut re FY Under Total Estimated
U S Budget to FY 2018
FY 2018-19 Active 2018-19 CIB Complete Active Ten Year CIPProjects Projects CoT_parison System $19,347,000 $109,085,540 $128,432.540 $308.958.000
Treatment Plant $16,865,000 $158,460.500 $175.325.500 $428.207.000
General Improvements $4,750,000 $11,418,800 $16.168.800 $25.432,000
Recycled Water $2,857,000 $20,387.500 $23 244 500 $23675,000
Contingency $1,500,000 $8,000,000 $9.500.000 $19,500,000
Totals: $45,319,000* $307,352,340* $352,671,340 $805,772,000
=1
*Approval of FY2018-19 projects may commit approximately
$31.2 million in the following fiscal years.
boo
- . .
LSAN3
May 17, 2018 Regular Board Meeting Agenda Packet- Page 504 of 534
Page 11 of 35
FY 2018-19
COLLECTION SYSTEM (CS) PROGRAM
MAJOR PROJECTS FOCUS
Sewer Renovation:
• Construction Lafayette, Ph. 12 includes 8,800 feet of sewers
• Construction Walnut Creek, Ph. 12 includes 8,500 feet of sewers
• Construction of Orinda projects includes 17,300 feet of sewers
Designs for Danville, Lafayette, Martinez, Orinda, Pleasant Hill,
Walnut Creek, and other communities in the Service Area
Pump Stations:
• Final Design of Pump Stations Upgrades - Phase 1 for Moraga,
Orinda Crossroads, and Flush Kleen Pump Stations
No capacity driven projects (not including developer and CAD)
CENTRALSAN
4
May 17, 2018 Regular Board Meeting Agenda Packet- Page 505 of 534
Page 12 of 35
FY 2018-19 CS PROGRAM
TOTAL ESTIMATED COSTS PER PROJECT
Project Project Budget-tc, FY 21118-19 FY 2019-20 Futum FYs Total Project
Number,i- Date Cost
5991 Pleasant Hill Sewer Renovation-
Phase 2 $460,000 50 $0 $0 $460,000
6602 South Jackson Contractual
Assessment District ICADI $411,290 $0 50 50 $411,290
6603 North Jackson Contractual
Assessment District lCADI $400,000 00 50 $0 $400,000
8249 CSO Dump Pad Modifications $00000 $0 $D $D $00DDD
8419 Collection System Planning
5870,000 s1:h 000 $zoQDDo $412,060 $1,588,000
8433 S.Orfnda Sewer Renovation-Phase 6 $1.962,127 $2,758,873 $0 $0 $4,721,000
8435 Walnut Creek Sewer Renovation-
Phase l2 $1,450,000 $3.100000 $0 50 54,550,000
8436 Pump Station Upgrades-Phasel $1,300,000 $2697000 $5,315,000 $17,868,000 $27,180,000
8441 OPP Contract 2017-2920 $300,000 $110000 $103,000 $0 $503,000
8442 Pump Station Equipment B Piping
Replacement-Phase 2 $36,000 525.000 $103,000 $436,000 $600,000
8443 large Diameter Pipeline Inspection
Program S20QOOD MDOD $515,000 $1,030,000 51,795,000
8444 Force Main Inspection Program $75000 $50000 $0 $0 $125,000
8445 North Orinda Sewer Renovation-
Phase 7 $636,000 $3,731,1100 $0 $0 54,367.000
8446 Lafayette Sewer Renovation-Phase
12 $636,000 $3,397,600 $0 50 5kD33,600
8447 Pump Station Security Improvements 00
$131, 0 $25,000 $51.500 $360,500 $568.000
8448 Manhole Modifications 5t00000 $300,000 $309,000 $1,236,000 $2,245,000
.` 8449 Collection System Modeling Support $100,000 $100,1100 $103,000 $206,000 SSD5.000
8450 Development Sewerage Support 5100000 $250,000 $309,000 $1,236,000 $2,195.000
Collection System Sewer Renovation
00
8451 phase I $50, 0 $2,612,527 $18,181,540 $35,535,000 $56,379,067
i80 Pump Stations Upgrades Phase '
$D 550,000 $907,000 $24,663.000 $25,620,000
Total P $9,877,417 $39,347,000 $26,103,040 $a4982,s00 $138,309,957
5
May 17, 2018 Regular Board Meeting Agenda Packet- Page 506 of 534
Page 13 of 35
FY 2018-19
TREATMENT PLANT (TP) PROGRAM
MAJOR PROJECTS FOCUS
Rehabilitation and Replacement:
• Headworks Screenings Upgrade (Construction)
• Piping Renovation - Phase 9 (Construction)
• Equipment Replacement (Construction)
• Solids Conditioning Bldg. Roof Replacement (Construction)
• Plant Operations Building Seismic Upgrade (Construction)
• Plant Control System 1/0 Replacement (Construction)
■ Mechanical & Concrete Renovations (Design and Construction)
■ Solids Handling Facility Improvements (Final Design)
• Energy Recovery and Blower Replacement (Planning and
Pre-Design); retitled from Aeration and Energy Upgrades
■ Ultraviolet Disinfection Repairs
No new proiects
6
May 17, 2018 Regular Board Meeting Agenda Packet- Page 507 of 534
Page 14 of 35
FY 2018-19 TP PROGRAM
TOTAL ESTIMATED COSTS PER PROJECT
P.rap R Blower Building Seismle
)MI UPgmde 56.582 am 50 m so Sr.58-1 n
]292 Switchgepr Relurhlihment Pnase2 5)]g03] 52m'1131 5226,0p $0 51,196.600
]361 PEC Systems Upgrade 55]5.0?] 5110,0X3 5113.3(0 5226,(n0 51,020,901
7315 App lied Rc:0arsh 6 lnnpvat on. S55],1)4 5300,1[m 551500 5103Q(W $2,x02,2)4
Plant Cpn[Ipl Sy.tem flrtwnrt
)31] Upgrades 5330.(M Swam so 5a Sa3Q001
]320 Plant Energy OptimUatl--• Gen 51.(MYs010 $0 5o m 51,011,009
7
322 sire PratrshOn System Phsr 2 51,ZZ 50 $o SD 51.4m.000
7326 Enuipmert Replxe-0 51,IW= 5250.m0 m 50 S,Air,
1322 Udwdr kk Ssreenings Upf'.rnde SR.1.am 5)6,000 SO So 58,22[000
Ieanll,,-t Pump(lcnrhal
MR Improvrmer.t: SIOUOm SW..am 513.%. $2.]5X8(10 54.78000
;]329M
329 rurnxcI flume r!'pgIIdrs 52M.000 $0 SO 50 522QM*
]30 Pipmft Pnnvat on Ph-952,W,am 56110D m m 531sa m
Plan Carmol 5yen•m I/O
7339 Rrplxement samara S9(gsav 51133.(%10 51,153'3 W) 54,}120(10
W'1-t Cre,k/Onvs0-Creek Icvcr
]341 R•hah SIM" SO 5515.am s515(3m 51 Im0m
W d:llandlingrarillty -
7
34q Improve merle 54,9)5010 S5,)15.MM $1113 OM $CA.M IM S821m,1a)f3
Energy R--,and Blown
7349 Rrpl4rement 53010m $1 2.OU1 S3113a m SS1,917 M 5m.1s0.0a1
7351 R1ech,m r41•ted Co-1,R— rte- 5:300.010 53 000,6%1 53 OOO,am $0 57 30Q
)352 W Dlsinfenion Upgrades so $Sm.(ag1 Mara 53M(Lm $1100.M1
7353 Outfull lmpr0vements Ph-7 so SAV-W 52240031 51812.f[I' 54.x52001
Trestmrn t Plant Security
7354 Ira pr9vcment. S97 am sso M, 5]&9000 5915 000 sl PA=
7155 D4 dr COmr0l llpq•ade. Phw,1 Su0 x) 5201001 5824 m(1 52'9350m 54.033000
]35] Plant Wide l n'UumentA-W gi4d.s S1m0m SIM" $515 m0 51236000 520110m
735911,01,11-Renewable Energy P!-n 53m3 m 511111000 520(1]0 $61(L010
SoildsCundih��n�ng Bu1lElnq R sof
7359 Rrp'—.— Sun m0 $1X11 m0 5o SO 5730.010
)3m Ea sty g Plant l..,fil ens is Drawings $1010rm swan 5103001 :SE 501 535450'1
p,_0pa111,0ns 0ullding 1P081
7362 Seismic Upgrades 540,0m Sl 1m.m/ st 4.3(1011 So :2 Man
]363 Treatment Plant Planning $450000 S4solm S%6 Sm $1133113 $2599,5m
Treatment Plant Safety Enhamement '
7364 Phases 50 SIMM) Stm" 51t 524140.
TOW Pm11am 532.636,314 514665,000 524292,400 S13gULM SMALM
O a
2
7
May 17, 2018 Regular Board Meeting Agenda Packet- Page 508 of 534
Page 15 of 35
FY 2018-19
GENERAL IMPROVEMENT (GI) PROGRAM
MAJOR PROJECTS Focus
Asset Management Program:
• Continue Program Management Information System (PMIS)
Implementation
IT Development:
• Enterprise Resource Planning (ERP) Improvements
• Infrastructure Improvements
• Cyber Security
Building Improvements:
• Server Room Relocation (Construction)
• Security and Public Facilities Improvements (Design)
s
May 17, 2018 Regular Board Meeting Agenda Packet- Page 509 of 534
Page 16 of 35
FY 2018-19 GI PROGRAM
TOTAL ESTIMATED COSTS PER PROJECT
8207 General Security and Access $194,616 $500,000 $103,000 $103,000 $900,616
Geographic Data Integration(GDI)
8227 Treatment Plant $425,000 $0 $0 $0 $425,000
8230 Capital Legal Services $158,665 $20,000 $20,600 $41,200 $240,465
8236 District Easement Acquisition $208,047 $50,000 $51,500 $103,000 $412,547
Asset Management Program
8238 Development $2,969,185 $400,000 $0 $0 $3,369,185
Information Technology(IT)
8240 Development $2,148,794 $1,750,000 $2,420,500 $1,005,500 $7,324,794
8243 Server Room Relocation $955,430 $880,000 $0 $0 $1,835,430
8247 Property and Building Improvements $400,000 $300,000 $257,500 $1,030,000 $1,987,500
8248 Cyber Security $75,000 $0 $103,000 $309,000 $487,000
8516 Equipment Acquisition $676,000 $200,000 $206,000 $1,030,000 $2,112,000
8517 Vehicle Replacement Program $1,199,000 $650,000 $772,500 $3,862,500 $6,484,000
Total Program $9,409,737 $4,750,000 $3,934,600 $7,484,200 $25,578,537
4
CENTRALSAN
� 1
9
May 17, 2018 Regular Board Meeting Agenda Packet- Page 510 of 534
Page 17 of 35
FY 2018-19
RECYCLED WATER (REW) PROGRAM
MAJOR PROJECTS FOCUS
Rehabilitation and Replacement:
Filter Plant and Clearwell Improvements (Pre-Design)
Planning:
• Zone 1 Recycled Water System (Ongoing program)
• ReW Distribution System Renovations (Planning)*
• Surge Tank (Pre-Design)
*New Project
CENTRALSAN
10
May 17, 2018 Regular Board Meeting Agenda Packet- Page 511 of 534
Page 18 of 35
FY 2018-19 RECYCLED WATER (REW) PROGRAM
TOTAL ESTIMATED COSTS PER PROJECT
7306 Zone 1 Recycled Water $497,894 $35,000 $51,500 $103,000 $687,394
7346 Recycled Water Distribution System
Surge Analysis $155,000 $50,000 $0 $0 $205,000
7361 Filter Plant&Clearwell Improvements
$330,000 $2,457,000 $8,180,000 $11,393,000 $22,360,000
7365 ReW Clearwell Repairs $1,400,000 $300,000 $0 $0 $1,700,000
TBD' ReW Distribution System Renovations
$0 $15,000 $60,000 $600,000 $675,000
Program
Total Program $2,382,894 $2,857,000 $8,291,500 $12,096,000 $25,627,394
*New Project
11
May 17, 2018 Regular Board Meeting Agenda Packet- Page 512 of 534
Page 19 of 35
TEN-YEAR CAPITAL IMPROVEMENT PLAN (2018-2028)
$808 MILLION (M) TOTAL
Treatment Plant ($428 M)
• Liquid Treatment Process $ 185 M
• Solids Handling Process Treatment $ 97 M
• General Projects/ Safety/ Regulatory $ 146 M
Collection System ($309 M)
• Replacement and Rehabilitation $ 210 M
• Pumping Stations $ 60M
• Regulatory Compliance $ 36 M
• CAD's and Developer Sewers $ 3 M
General Improvements ($25 M)
• IT Development $ 11 M
• Vehicles and Equipment $ 9 M
• Buildings/ Properties/ Others $ 5 M
'N Recycled Water($24 M)
• Filter Plant and Clearwell 23 M
Distribution and Zone 1 1 M
CIP Contingency ($20 M)
12
May 17, 2018 Regular Board Meeting Agenda Packet- Page 513 of 534
Page 20 of 35
UESTI 0N
i
mrKNOSITIN M.
13
May 17, 2018 Regular Board Meeting Agenda Packet- Page 514 of 534
INTRODUCTION
'w '1
ENERGY
• -
BLOWER REPLACEMENT PROJECT
DP 7349
Jean-Marc Petit
r�
- - Director of • • & Technical Service, 7
r
- . : Operations
icAso,
Condition Address
Assessments/ Replace Aging/
Remaining Unreliable Assets Equipment
Redundancy
Useful Life
Improve Energy Optimization/ Prepare for
Efficiency/ Performance/ Water Exchange/
Nutrient
Sustainability Water Quality Removal
�� S
Page 22 of 35
THERE IS AN INTER-RELATIONSHIP
BETWEEN THREE PROJECTS
Energy Recovery
& Blower
Replacement
Water Nutrient
Exchange Removal
WATER EXCHANGE PROJECT
HAS MANY BENEFITS
Regional
Maximize Collaboration
Resource Recovery (Central San,
CCWD, SCVWD,
Reduced
Nutrient Loads to Sustainable
future
Suisun Bay
I
i
2
May 17, 2018 Regular Board Meeting Agenda Packet- Page 516 of 534
Ali'A
n t R•_ r
r4.
it
Csm
Page 24 of 35
0 Secondary Treatment/Electrical Considerations
sus g -- '
Elegtrieal Upgrades 4�
saw
'r
Mixed Uquor
Hydraulic
Splitter Box
RehabOarifiars
SUB 33&34
*'( Electrical Upgrades } Generator
_ � S
4
k
_�
Planning for Water Exchange
SUB 812
Electrical Upgrades ;`•.'
20 MGD Water Exchange:
:NR/MBR or Nereda"GAS i
+Microfiltration+Blended Reverse Osmosis
y`
f
' Divert 20 MGD Conventional Activated Sludge
4
May 17, 2018 Regular Board Meeting Agenda Packet- Page 518 of 534
Page 25 of 35
0 Planning for Future Nutrient Removal Level 1
SUB-82
Electrfcal Upgrades r; a
- � W
- # New
Blower
Building V
Y
., 4
CEPT
Seasonal Nutrient
Optimize Seteetor Removal:New
Diffusers&Pipirig&
Aeration Tank Rehab q y
Re-Use Biower-Buifdirrg ■
for New Blowers? SUB S2 Electrical UpERN'
0 Planning for Future Nutrient Removal Level 2
SUB 82 al Upgrades CooWminated Soil
ElectricFuture Nutrient Relocation
Ftr[ure Glarifiets Removal BNR Tank
New
Blower
Building M _
Alk f
CEPT
1JQ
�K
Seasonal Nutri"
Optijni r, Removal:New
Diffusers&Piping&
Aeration Tank Rehab
w
Re-i lseu Blow a a-4diog
for New Blowers? SUB 52 Electrical Up -'
5
May 17, 2018 Regular Board Meeting Agenda Packet- Page 519 of 534
Page 26 of 35
Coordinated Efforts for Secondary Improvements&Water Exchange
SUB 82 Corrtaminated Soil
Electrical Upgrades Fume Nutrierst RelotatiOR
Water Exchange Future Uarifiers Removal Tanks Steam Generation
New Bbikarfeed Water
I Blower
❑ Building Steam&
Condensate
htixed l'squor Rehab darifiers
Hydraulic Add
Soitter Box �e Generator
CEPT #
5US 33&# I 1
Eleci�Ccal Upgrades
New Diffusers&Piping
Optirrsize Selector &Aeration Tank Rehab Dedicated
r
Aerated Grit
T Blowers
Re-Use Bfower Building
for New Blowers? SUB S2 Electrical UpgraOt%-
CONSIDERATIONS FOR
THE WATER EXCHANGE PROJECT
ProjectConfirm
QualityEstablishing IVIOUs Elements
Identify
with CCWD & (e.g.Quantity Alternatives
SCVWD
Outreach, the Refineries)
Proceed with
Water Exchange Perform Business
Select Best Case Analysis of
(Demonstration the Alternatives
Agreements, (including$/AFY)
6
May 17, 2018 Regular Board Meeting Agenda Packet- Page 520 of 534
Page 27 of 35
HOW DOES THE ENERGY RECOVERY &
BLOWER REPLACEMENT PRE-DESIGN FIT IN?
Confirm Identify "P
D- . .
I Alternatives
Assessments Design 4. (Current&Future
(Current&Future W/
Prepare 10% !Develop Lifecycle
AlternativesPreclesign and Select Best Costs for
confirm Project ernatives
Cost Phasing (Current&Future
1
REASONS FOR STARTING ENERGY
RECOVERY & BLOWER REPLACEMENT
PRE-DESIGN
o Steam system is complex and aging (need to
be ready for replacement with in kind or
different system)
Maintenance on energy recovery & steam
related systems are significant
o Increasing number of reportable compliance
activities (RCAs) on Title V Air Permit related to
energy recovery & steam systems
1
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May 17, 2018 Regular Board Meeting Agenda Packet- Page 521 of 534
Page 28 of 35
BOILER FEEDWATER &
STEAM SYSTEM
Complex Boiler Feedwater& Return Condensate System
Legend
Water
Hard Steam High Pressure
CCWD Return
Water Condensate
Chemical
Ion Feed
Exchange Cogen.
�SoftenersJ System I
Return Deaerator Waw Steam
Condensate Deaerator Storage Heat Users
Tank Tank Boilers
Low Pressure Auxiliary
t- — Return Boilers
Condensate
Issues:
1. Integrated System- Complex system:2 aux.boilers,1 WHB,and 1 Cogen Boiler
2. Limited Redundancy-It is a challenge with replacing equipment/valves/etc.
3. Unknown life- Boiler feed water system components remaining useful life unknown
4. Operating Pressure-Boiler feed water operating pressure higher than design
May 17, 2018 Regular Board Meeting Agenda Packet- Page 522 of 534
Page 29 of 35
BOILER FEED WATER VALVE REPLACEMENT
TRIGGERS MAJOR PLANT COORDINATION IN 2018
➢ Shutdown Aeration Turbines
➢ Transition to Electric Blower
➢ Shutdown Cogen & WHB
(i.e. import PG&E power) t a.
➢ Shutdown Boilers & Boiler
Feed Water System
➢ Perform Repairs
➢ Start-up All Systems
Steam System is Critical for the Secondary Process
Furnace Eshaust pry Draft
rice Wet Induced
Scmhher - a ScRbber Fan
7er-r66er Water
to Pnmary
Steam Piping EfB cent
Us. Muhlpke
Hearth
undrn ass Fumaces Et.arl
Standby towam
Power
[:P.bl• Boger Feeds: Facilitywarn
Feed MHF Boilers
Water Cogen Boiler Cogen
Aua Bal lers Erid a44r
-. rrom end Turbine
Ash Channet
HandNng
System rsat,n:a.. e
FUWR Neadf'
•.._YLllellt
Backup i
Beet&_ Witer
Blower
'I
9
May 17, 2018 Regular Board Meeting Agenda Packet- Page 523 of 534
Page 30 of 35
Emergency Existing System After Solids Facilities Improvement Project
Bypass
Stack —1
Opened? Furnace Exhaust 0 y wane
ry
sHeats—
r
Low Water –
Scrubber Water
Level in to Pr maty
WHB sre�n,P"", Effluent StaaaYAerated(irk
Cake TYabwse• _ l0lem41aval
He New Bypass Duct `�
kandra aas Furnaces �•.
�♦ to Plani steam Ajh Tanks
- I I i 'al
Uzerf
FotabrFeeds'
W—r MHF Boilers MfaedUq—
Cogen Boiler Channels
Aux Boilers Elactrlaty Meei
4om God
Final EHNtent
Ash "Channel
Handling
system
Issues:
• New Bypass Duct 4 Bypass WHB New wet scrubber system 4
Mitigate most regulatory risks
• However, if continue with steam system, root cause of bypasses
issues may continue to occur
AERATION SYSTEM
10
May 17, 2018 Regular Board Meeting Agenda Packet- Page 524 of 534
Page 31 of 35
2 STEAM DRIVEN TURBINE BLOWER &
1 ELECTRIC BLOWER
1
Schematic for Aeration Turbine-Blower System
Steam
mRNmf
Cmdenmte BLOWER I
Vacuum
Cooling Water ---
� ]WHP TURBINE 51219 I
GOVERNOR VALVF-� CIVPICAL OF_I
TRIP AND THROTTLE VALVB—
Cmtrol Valve BYPASS VALVE% TURBINE AIR INLET
s Row Vaive $ '
2W.
Check Valve N N TRAPS BYPASS/VALVE
Manual VaT,e CONTROL GL ! T I
yALVE AND SEAL — I
CONDENSER BYPASS
P&B BUILDING GROUND LEVEL FLOOR
RELIEFS DISCHARGE SILENCER
STRAINER WEIGHTSQ' -0
COOLING
FROM SEPARATOR-PURIFIER 75115 WATER CONDENSER 51104
FROM CONDENSER_
HEADERS 7WHPTO =VACUUM
SUB-COOLER
HOT HO(
WELL
CONDENSATE
VIA TRAPS CONDENSATE
TO DEAERATO0. TO 2
VIA SUMP TO
VIA HIGH PRESSURE ATMOSPHERE RETURN TANK
RETURN CONDENSATE L._ IN SCS
SYSTEM ')W ")OLER
P&B BUILDING LOWER LEVE:FLOOR VACUUM PUMP 51110 HUTWELL PUMP 51107
11
May 17, 2018 Regular Board Meeting Agenda Packet- Page 525 of 534
Page 32 of 35
ISSUES WITH STEAM & ELECTRIC BLOWERS
Ir.r ipez.
1. Reliability During Parallel Operation - Existing steam-
driven blowers (65,000 scfm ea.) don't operate reliably
in parallel, nor in parallel w/electric blower (^'45,000
scfm)
2. Turndown Limitations - Each steam-driven blower sized
for peak air demands but do not have adequate
turndown for low air demand conditions (i.e. triggers use
of air waste valve)
3. Undersize Redundancy - Electric blower is a backup for
emergencies and undersized for full range of air
demands, no redundant second electric blower
Condition of Below-Grade Aeration Piping
12
May 17, 2018 Regular Board Meeting Agenda Packet- Page 526 of 534
� 1 '
s
L rt
1r Pte+ !
�W
I'.
t
•
Blower Blower Capacity, Dedicated
Turndown Redundancy and Aerated Grit
Efficiency Blowers
Operational Improved Air Leaks &
Flexibility Monitoring & Intentional Air
Control Relief
Unknown Piping Air Flow More Efficient
Conditions Measurement Diffusers
Improvement
Page 34 of 35
PRE-DESIGN
IMIL
DRAFT LIST OF PRE-DESIGN
TECHNICAL MEMORANDA
• Tech Memo 1 - Business Case Analysis for Water Exchange
Alternatives
• Tech Memo 2 - Condition Assessment of Energy System &
Aeration/Secondary Systems
• Tech Memo 3 - Condition Assessment of Electrical &
Instrumentation Systems
■ Tech Memo 4 - Design Criteria Development & Improvements
to Meet Current & Future Regulatory Requirements
■ Tech Memo 5 - Business Case Analysis for In-Kind
Replacement & Other Alternatives
• Tech Memo 6 - 10% Pre-Design Report
1
14
May 17, 2018 Regular Board Meeting Agenda Packet- Page 528 of 534
Page 35 of 35
DRAFT PROJECT SCHEDULE
2018
Internal Kick-Off Meeting X";March 29
Draft RFP Internal Distribution May 29
Project Introduction to E&O Committee May 7
Project Introduction to Board June 7
RFP Advertisement June 8
RFP Submittal Deadline July 13
Interview&Consultant Selection August 8
Presentation to E&O Committee August 13
Presentation to Board September 6 -
Notice to Proceed for Consultant September 7 .
Planning and Pre-Design September 2018-February 2020
Final Design(Phase 1 Placeholder) February 2020-October 2021
Construction&Commissioning(Phase 1 Placeholder) October 2021-October 2024
QUESTIONS?
15
May 17, 2018 Regular Board Meeting Agenda Packet- Page 529 of 534