HomeMy WebLinkAbout14.a. Agenda and PowerPoint for Comprehensive Wastewater Master Plan Workshop-Collection System Update14.a.
CCCSD Board Meeting - October 6, 2016
Comprehensive Wastewater Master Plan
Collection System Update
Agenda
1. Collection System Master Plan
A. Sewer Rehabilitation and Replacement - 30 minutes
1. InfoMaster.® Risk Model Using ESRI GIS, CCTV, and Cleaning Data
2. Recommended Sewer Rehabilitation & Replacement Program
B. Wet Weather Capacity Improvements - 45 minutes
1. InfoWorks® Modeling Process
2. InfoWorks® Model Calibration & Design Criteria
3. Model Results & Recommended Wet Weather Capacity Improvements
C. Planning and Rate Setting Schedule - 15 minutes
miCP.
.; 7.
• •-•.c.• . •
COMPREHENSIVE WASTEWATER
MASTER PLAN -
COLLECTION SYSTEM UPDATE
Board Meeting
October 6, 2016
Jean -Marc Petit, Director of Engineering and Technical Services
Danea Gemmell, Planning & Development Services Division Manager
Dan Frost, Senior Engineer, Planning and Applied Research
14.a.
COLLECTION SYSTEM MASTER PLAN
LEVERAGES DISTRICT -WIDE RESOURCES
Planning &
Development
Services Division
Capital Projects
Division
Collection System
Operations
Division
Plant
Maintenance
Division
RMCTa I ave ra &
water and Richardson
Engineers... Working Wonders With Water ®
:Ili V&A
Consulting Engineers
Z
OUTLINE
A. Sewer Rehabilitation & Replacement Program
InfoMaster® Risk Model Using ESRI GIS, CCTV, and Cleaning Data
2. Recommended Sewer Rehabilitation & Replacement Program
B. Wet Weather Capacity Improvements
1. InfoWorks® Modeling Process
2. InfoWorks® Model Calibration & Design Criteria
3. Model Results & Recommended Wet Weather Capacity Improvements
C. Planning and Rate Setting Schedule
3
PART A:
SEWER
REHABILITATION & REPLACEMENT
PROGRAM
C aproskintoi Tim Loper, P.E.
Associate Vice President
Engineers...Working Wonders With Water°
OUTLINE
A. Sewer Rehabilitation & Replacement Program
InfoMaster® Risk Model Using ESRI GIS, CCTV, and Cleaning Data
Recommended Sewer Rehabilitation & Replacement Program
B.
1.
2.
3.
C.
5
INFOMASTERO RIsK MODEL USING ESRI
GIS, CCTV, AND CLEANING DATA
DESCRIPTION OF SEWER SYSTEM
• 145 square mile service area
• 2nd largest collection system in
Bay Area after San Jose
• 1,500 miles of gravity sewers
• 37,000 pipe segments
• 31,000 manholes
• Pipe Diameters: 4" — 102"
• Oldest Pipe: 1913 (103 years old
• Pipe Materials: Concrete, Clay,
Plastic, Metal
7
GRAVITY SEWER SYSTEM AGE PROFILE
BY PIPE MATERIAL
70.00
60.00
50.00
w 40,00
30.00
0-50 years ip 50+ years
(960 miles) (530 miles)
s
20.00 .
HOPE III
1 . a
le
11111 I II IJiJ - - II III 11111111 1 I 1
_
m tr. r.... c) q--( rn ul N. q-4 rn Lrl N. Chi r -r fn Lt N. crl. ,,I rr Ln N CU , -i re) LA N. m ril m ir) N
.--i Cr),.N NJ iN r N rn rfl rft rel tr) si.1. ier 'Ker kin irt ul ul Ln ko ko ko t.o
1
10.00
Age (as of 2016)
qq.
•
: 75+ years
1.! (9 miles)
1
N Cr) mtn rc") N 47, q-1 re)
N 00 CO CO CO CO Cr) Crl q c)
GRAVITY SEWER SYSTEM ASSET VALUE
Asset Value = $2.9 Billion*
Plastic
�$826
M
Metallic
$162 M
concrete
$974 M
9
(*Value based in 2016$)
WHAT IF GRAVITY SEWER REPLACEMENT
ESTIMATE WAS ONLY BASED ON PIPE AGE
70
60
50
40
30
20
10
- u Calculated Pipe Replacement (miles) based on
install date and assumed service life
-Annual Pipe Replacement (miles)
20 years
NEED TO DEVELOP A RISK-
BASED MODEL FOR
VALIDATING SEWER
REHABILITATION &
REPLACEMENT PROGRAM
j
THE CWMP INCLUDES DEVELOPMENT OF A
RISK MODEL USING INFOMASTFR
Likelihood
of Failure
CCTV11111
Data
Pipe Ag� S
Pipe
Material
Cleaning ��
Data
Multiple
Calculation
Options
Calculation
L._ of Risk
Risk Class Example Capital Action
Extreme
High Priority in CIP / Yearly Operational
Frequency
High
Standard Priority in CIP / Biannual Operational
Frequency
Medium
Low Priority in CIP / 1 in 5 Years Operational
Frequency
Low
1 in 10 Years Operational Frequency
Negligible
Wait for a problem to arise
Consequence
of Failure
• Q/Qmax Capacity
• Hospitals, Schools
• Streets, Rails,
\vaterways
• Pipe Diameter
Hydraulic Model
Results
GIS Data
GIS Data
Other
COF - High
COF - M. High
COF - Medium
COF - M Low
COF - Low
LOF - Low
270 Pipes, 21.3 miles
LOF - M. Low
ipes, 8.4rei
LOF - Medium LOF - M. High
LOF - High
885 Pipes, 44.4 miles 376 Pipes, 20.5 miles 213911PipallMIMPIR PiPgs, 1.2 mil
5918 Pipes, 246.5 miles 2403 Pipes107.6 miles 1232 Pipes, 51.5 mil
IR •
Pipes, 2
3631 Pipes. 145.9 miles 1410 Pipes, 60.7 miles 963 Pipes, 38.8 miles 579 Pipes. 28.4 milesili8 Pipes, '9.All
2
10867 Pipes. 396.1 mile;
3815 Pipes. 141.5 mile: 2117 Pipes. 77.9 mile! 997 Pipes, 37.5 mile! 438 Pipes. 13.8 mile!
EXAMPLE PIPE RISK SUMMARY
COF - High
COF - M. High
COF - Medium
COF - M. Low
10867 Pipes, 396.,1 riles 3815 Pipes 141.5 rile; 2117 Pipes, 77.9 riles 997 Pipes, 37.5 mile
COF - Low
LOF - Low LOF - M. Low
270 Pipes, 21.3 miles
107 Pipes, 8.4 mils
865 Pipes, 44.4 miles 376 Pipes. 20.5 riles
LOF - Medium LOF - M. High
5918 Pipes, 246.5 miles 2403 Pipes, 107.6 mile! 1232 Pipes, 51.5 riles 488 Pipes, 23.
3631 Pipes, 145.9 miles 1410 Pipes, 60.7 miles 963 Pipes. 38.8 miles 579 Pipes. 28.4 miles
-11
LOF - High
!!'"11
IMIllipes _
L
"218 Pipes, 9.2 miles
Pipes. 13.8 miles
RECOMMENDED SEWER REHABILITATION &
REPLACEMENT PROGRAM
1-3
100 -YEAR SEWER REHABILITATION &
REPLACEMENT FORECAST
Period Cost ($M)
60,000,000
50,000,000
40,000,000
0
Ili
30,000,000
cou
20,000,000
10,000,000
‘,, 75-lOOYears $561
0-5 Years
•
5-10 Years
10-20 Years
$68
x$124
$302
Mileage
38
43
184
20-30 Years
30-50 Years
50-75 Years
$499 284
$800 404
$393
206
N N• rJ N r4 r r r r r rJ N r N. c
1 rwCNI rn c t lin to t.o o0 0o can cn o
c o o c o 0 o o o o a c
NINNNNJNINNNININNINNINNININININ
Forecast Year
z77
2016-18 STRATEGIC PLAN
GOAL FIVE
MAINTAIN A RELIABLE INFRASTRUCTURE
111. STRATEGY 3 - PROTECT DISTRICT PERSONNEL
AND ASSETS FROM THREATS
AND EMERGENCIES
Enhance our capability to mitigate, prepare, respond and reco
from emergencies.
Key Success Measures
tne minimum reader w uinis or trki
• Add one contifitlieV, held and treatrnem plan t practk-
the Erneigencv Marlagerne7 TrainT9 Piogtann
▪ Conlpie the tee -year LI-Pdate to thQ multi jar
Hazard Mitigation Pram 1_1-1101,) (Conn Contra
' Update the Emergency CiDerations Plan.
• Plovide an annual Emefgency Manager"-,
rf,iocate th,e data Miter to A mote SE
• Explu'e cloud -based systems suiti
solutions.
Evaluate and Implement a
Security Program to mee
Key Success Measu
Develop J COM PC(
* Conduct pilysic
Walnut Creek
• Consoled I
• tnhanc
• tipgr
:DORI I • •
dfltSiJtt
4 fetxrt to the atJ
icy:;:kon r` 18i
.rrrallz,cd Mut, boc_kur
roprlate Improvements to OUr
ew or evolving threats
,s,ve Stmirily Pirtisief i.nan
assewrients of the Martinez an.:,
Acutitv mOnliut !tog at ail Wiict fat:Arlt
ie Se(.1.1,1tY uw ttt((jUhitiggrelfed Co
rEitlic)ft,
!ferment piant.urie naworit ana notwm t1.11WritIfIi
aft troinclyTi p.ArTr..
ancl Onoirrtent rr -aIfl seCuttly polKYrproco_lure.
KEY METRICS FOP Go
Ot ; -11- •
Ditat ‘?gooftc,
rrrS upiv7v:
'737'1Y
itAik
IVE
MI
KEY METPICS FOP GOAL FIVE
Safety work orders complete° on time
. Regulatory Title V work orders completed on time
Planned treatment plant preventative maintenance
completed on time
I ,41t1111...11111111111- 'I -UM.'
100%
100%
Greater than 9596
I1° 1 ipi 0 1
1
•
• 1
1
Miles of pipeline replaced
Greater than 196 of assets
• .
•
•
cash flow
Information Systems uptime (excluding planned
maintenance)
Data backup and recovery
100%
Zero lost data
Loco Greater thafs9S13
liVfliSiAU.111C101201;
Cfpa:01 tri411 l'Ocr,f .tit;
tr.n. ir; :in
SEWER REHABILITATION & REPLACEMENT
RATE
• Current Rate: -0.3% per year
• Strategic Plan: 1% per year
• CWMP: -0.5 to 2%/year
\
Legend
1=ClIV 6c...n. Renewal Period Replace 30-50 Year,
C.9 CI Service Are. . - qecia, ‘re&r.,, - 5Z-75 Years
CCCSO SOI ReOwe 05-10 TOM RePleze 75-. Years
Replace 10-20 'fears Replace 100+ Yea' s
Replace Yea r$
COr..."".* •
Efi.
PIPELINE RENEWAL PERIOD
FIG,E 4
CEIVIrRAIC,01,11,,,A 5..17.0.SY OPSTRICT
Timeframe
Miles/Year
%/Year
0-5
7.6
0.5
5-10
10-20
20-30
30-50
50-75
8.6
18.4
0.6
1.2
28.4 1.9
20.2 1.4
8.2
0.6
75 100
0.7
/6
UPDATED CIP COSTS TO ADDRESS SEWER
REHABILITATION & REPLACEMENT NEEDS
Existing CIP already anticipated elevated spending in pipeline rehabilitation &
replacement (FY15/16 budget was $6.1M compared to $15M in FY16/17)
$100
$80
.69. $60 -
..d)(1)
0
(-) $40
a
U
$20
so
CI P Drivers
■Aging Infrastructure -Sewers
Current 0 -5 -Year CIP
/7
CWMP 0 -5 -Year CIP
UPDATED CIP COSTS TO ADDRESS SEWER
REHABILITATION & REPLACEMENT NEEDS
$160
$140
$120
.09. $100
•c
$80
0
$60
Z.75
$40
$20
so
CIP Drivers
Aging Infrastructure - Sewers
Current 5-10 Year CIP
.1. II I II 1111 III...11 I I I
DRAFT
CWMP 5-10 Year CIP
..........
UPDATED CIP COSTS TO ADDRESS SEWER
REHABILITATION & REPLACEMENT NEEDS
$350
CI P Drivers
$300 • Aging Infrastructure - wers
$250
.c $200
3 $150
$100
$50
$0
+$160M
".111111P
4
1
Current 10-20 Year CIP
DRAFT
CWMP 10-20 Year CIP
/9
UPDATED CIP COSTS TO ADDRESS SEWER
REHABILITATION & REPLACEMENT NEEDS
$550
$500
$450
$400
2 $350
.(nE $300
8 $250
$200
$150
$100
$50
so
CIP Drivers
E Aging Infrastructure -wers
+$220M
onsommilin
id
DRAFT
Current 20 -Year CIP CWMP 20 -Year CIP Total
111,111,1111111.11111111111
20
11
SOME KEY TAKEAWAYS
System is Well -
Maintained & in
Relatively Good
Condition
• 64% of pipes are
< 50 years old
• CCTV'd 90% of pipes:
•
2%-VeryBad
lid hi
LIP
SIPS
/•w
•. �+Y.hP
1 •us.
Developed Data -
Supported Risk
Model to Confirm
Sewer Needs
• Uses ESRI backbone
• Uses LOF and COF to
calculate risk
• LOF based on District
CCTV and cleaning data
• Used data to build
statistical model to
estimate service life
ade
Optimized
Rehabilitation &
Replacement
Forecast
• Forecasted CIP:
— --$68M in 5 years
— --$494M in 20 years
• Forecast will be
updated routinely by
staff for CIP updates
60,000,00
S0,00C1,000
4.000
r000,00)
2o.000.00
e-+ ,A e+1 h 4 Of1P
QUESTIONS?
PART B:
WET WEATHER
CAPACITY IMPROVEMENTS
.ateif and en, ironrnent
Complex Challenges Innovative Solutions
Gisa M. Ju, P.E.
Senior Civil/Environmental Engineer
Principal
23
A.
2.
OUTLINE
B. Wet Weather Capacity Improvements
1. InfoWorks® Modeling Process
2. InfoWorks® Model Calibration & Design Criteria
3. Model Results & Recommended Wet Weather Capacity Improvements
INFOWORKSO MODELING
PROCESS
THE CWMP INCLUDES DEVELOPMENT OF A
CRITICAL TOOL FOR DAY-TO-DAY OPERATIONS
• Under the Master Plan, a new collection system
hydraulic model was implemented: InWo®ICM
• Transition from ArcSNAP -> InfoWorks® ICM
• Collection System Model is used to:
➢ Identify Wet Weat ger Capacity Deficiencies
➢ Size Pipes for Capita Projects
➢ Eva uate Impacts from New Deve opment
➢ Eva uate Potentia Limitations for Specia
Disc urges
26.
INFOWORKSO DYNAMIC MODEL
IS MORE ROBUST & MORE ACCURATE
✓ Dynamic Model instead of Static Model
✓ Commercially Available Software
✓ Builds on District's new GIS (ESRI)
✓ New Model Uses Updated:
• GIS Data
• Topographic & Survey Data
• Parcel Consumption Data
• General Plan & Development Projections
✓ New Model Provides More Detailed & Accurate Information:
• Hydraulic Grade Line
• Predicted Extent of Deficiency (SSO vs. Surcharge)
• Quantifies Deficiencies (Gallons of SSO, Feet of Surcharge)
• Uses Rainfall Event & Area -Specific 1/1 characteristics from flow
monitoring
STEPS FOR USING INFOWORKSO TO CONFIRM
WET WEATHER CAPACITY DEFICIENCIES
Network
Configuration
& Parcel
Loading
Flow
Monitoring
Model
Calibration
Input
Future
Parcel
Loads
Apply
Design
Criteria
Identify
Deficiencies
Resolve
Deficiencies
eZ 8
INFOWORKSO MODEL
CALIBRATION & DESIGN CRITERIA
�9
PREVIOUS DESIGN CRITERIA & APPROACH
FOR IDENTIFYING CAPACITY DEFICIENCIES
• Peak 1/1 flows based on pipe age
• 5 -year event triggered need for capacity relief projects for CIP
• Triggered if peak flow exceeded full pipe capacity (i.e. no surcharge)
• Ultimate level of service goal was to achieve capacity for 20 -year event
• 20 -year event used for design of relief pipes
• Replacement pipe
designed to District ,n,
depth/diameter (dID)
standards wco e
b▪ Y
• Not all wet weather capacity = �NPH
��
deficiencies were identified in
current CIP to achieve a 20 -
year system capacity
MZ -A
Con Ind
Ei
•
•
X
1,950
1955
180
./
ES
Pil
a
l bl Yrvw PS
1945
1970 !975
Aviv hgt Pvt. Conrwtion Year
1990
Latin k
Pitai at HO
34•Ramo,
Witt
AI
',11.9art°F i 1
SR -13 9R•H
SRA �#
199,3
1995
30
2010 COLLECTION SYSTEM CAPACITY
MASTER PLAN
➢ 14 wet weather capacity
projects identified:
1 Project Completed
(Pleasant Hill Road, Lafayette)
1 Project in Progress
(Grayson Creek)
Some Projects Partially
Addressed in Renovation and
Rehabilitation Projects
A-. 12 Projects Currently Remaining
in Existing CIP
Pleasant Hifi -
Pleasanl HilUGraytson Crook
Lafayette,
Pleasant Hill Road
C+II., Ca,F
74r
C
If A
040
74
04-0
00.0
_Welnut Creek.
Walnut Blvd
Muraga
Moray. Way
Legend
Capacity parficl.nay Group
Per...0 i*uO Pips Capocdty
(2040 Otava Moprn.rrf. 11.year Event)
erc, w;1., 4]r inner thy.
-1iX1,
-.100.4 1 - 1
130%
geo 04 J!
San Ramon
San Raniurr Schedule C
NSA
1O -YEAR DESIGN EVENT IS COMMON
5 -Year Design Event
EBMUD Satellite Agencies
SFPUC
San Mateo
Palo Alto
Gilroy
West County Wastewater District
Sausalito Marin City Sanitary District
North San Mateo County Sanitation District
Fairfield Suisun Sewer District
10 -Year Design Event
Union City
San Jose
Union Sanitary District
Orange County
San Diego
Sac Sewer
Regional San
Silicon Valley Clean Water
Santa Clara
Santa Rosa
Modesto
Hayward
Burlingame
San Bruno
San Carlos
Pacifica
20 -Year Design Event
Central Contra Costa Sanitary District
Dublin San Ramon Services District
Fairfield Suisun Sewer District
(high risk areas of collection system)
jz
DESIGN CRITERIA MAKES USE OF
AVAILABLE SYSTEM CAPACITY BY
ALLOWING SOME SURCHARGE
4
14
'' ..,e0eid
Manhole
4
-� 1E1117-ill1=-1111E I
1 1--III--I I !=1 1 1=1 11:::
•
Q`
Sewer
Available
System
Capacity Not
Used
EXISTING CRITERIA
•
Manhole
Flow Kept
within Pipe
Sewer
4
4
NEW CRITERIA
-I 11==.7 II, I II:7711
ii-iii-µ��,
- Maintain at least
5 -ft Freeboard
Allow
Surcharge
to Use
Available
System
Capacity
3_3
DESIGN CRITERIA & APPROACH FOR
IDENTIFYING CAPACITY DEFICIENCIES
• Capacity Trigger & Design Events:
10 -year event used to trigger need for and design of relief projects
• Capacity Deficiency & Design Criteria:
Deficiency triggered if surcharge reaches within 5 feet of rim
(i.e. 5 -ft freeboard)
Replacement pipe designed to District d/D Standards
Continue to confirm pipe size during predesign size pipes to avoid
upstream/downstream bottlenecks
• Peak RDI/I flows calibrated to flow monitoring & applied to
design rainfall pattern
ADVANTAGES OF NEW CRITERIA
✓ Criteria more consistent witi other agencies
✓ Capacity project trigger criteria consistent wits design
criteria
vt. New Criteria:
Maximizes use of available system capacity
Reduces size of improvements
Improves dry weather flow characteristics
3 s
2015/2016 FLOW M0NIT0RING
CCC401.4.4aar
ill Aro
11
a
Al
R(1
.1MC 44
wR JA
f11, 4
4
4lMi
2O16f11E Flow Monitoring Program
ctook44 wok.' Ott*,
Cettit,1aYtlSr ,11EVItalitkilAk
• 70 meters
• Gauge -adjusted radar rainfall data
• Captured wet weather events &
f saturated soil condition
• Refined 1/1 high response areas
• Improved model confidence
36
FLOW MONITORING FOR MARCH 2016
SELECTED FOR WET WEATHER CALIBRATION
Example Calibration: Meter OR -1, Peaking Factor = 12.5
Rainfall intensity (in/hr)
o_ooa---.--,- 1
0 050 •
a_ 100
0.150 •
0203
0250
Flow (MGD)
6,0
4.0
2.0 r
3/512016
Example Calibration: Meter SR -5, Peaking Factor = 2.6
3,7!2016
3/9/2016
3/11/2016
Legend:
BIue Line = Actual Rainfall
Green Line = Actual Flow
Red Line = Model Predicted Flow
Fainta(( intensity(inlhr)
0,00 •
T —.Tr
.�.• . .
0 10
0.20
0.30
0.40
Flow (MGD)
5.0
4.0
3.0
0.0
3/5/2016
37
r-
3,7/2016
3/9/2016
3/11/2016
3/13/2016
3/15/2016
DECEMBER 30-31, 2005 "NEW YEAR'S EVE"
STORM SELECTED FOR DESIGN RAINFALL PATTERN
• Recent large storm event, approximate 24-hour duration
• Typical California storm pattern and reasonable peak rainfall
intensity
• Rainfall adjusted to simulate a peak flow consistent with
predicted treatment plant flow
06a
0:00 200 4:00 6.00 8C0 10.00 1200. 14 00 16:00 18:00 20:00 22:00 000 2:00 4:00 6:00 8:00 1000 1700 14:00 1600 18:00.20.00 2200
3?
Imhoff Dr. bridge looking south along
Grayson Creek
MODEL RESULTS & RECOMMENDED WET
WEATHER CAPACITY IMPROVEMENTS
3
1O -YEAR EVENT MODEL PREDICTED OVERFLOW
LOCATIONS (BEFORE IMPROVEMENTS)
MODEL RESULTS FOR 1O -YEAR, 5 -FT
FREEBOARD CRITERIA
• <5 miles of improvements required
compared to -12 miles in 2010
Capacity Master Plan
• Project areas compared to 2010
Capacity Master Plan:
• Portions of 8 projects still required
• 4 projects eliminated
• Several new project areas
identified
• No dry weather flow capacity
deficiencies
• No overflows predicted for 20 -Year
Event when deficient pipes are
corrected
• Pump stations have sufficient
reliable capacity
Legend
CCCSD modeled sewers
Initially proposed projects
Grayson Creek Project
PRELIMINARY WET WEATHER CAPACITY
IMPROVEMENTS
Area
Improvements
Required
(feet of pipe)
Improvement Locations
(New areas not identified in 2010 Capacity Study
shown in bold)
Martinez
Pleasant Hill
Walnut Creek
Lafayette
Moraga
Orinda
2,500
5,000
8,500
4,500
2,000
3,500
Total
26,000
Alhambra, Embarcadero
2nd Ave, Virginia Hills Rd, Starlyn Dr/ Barocio
Ct, Marlee Rd, Ardith Dr
Walnut Blvd, Palmer Rd, Lancaster/ Moraga
Rd, Golden Rain/ Tice Creek, Geary
Rd/Camino Verde
Pleasant Hill Rd, Pleasant Hill Buchanan,
Moraga Rd, Happy Valley Rd, Deer Hill Rd
Brookfield/Hodges/Camino Pablo
Moraga Way, Moraga Way & Ei Camino
Moraga, Camino Sobrante
49:2
UPDATED CIP DRIVER DEFINITIONS
Current CIP includes improvements for wet weather capacity
deficiencies under "Capacity" CIP subprogram.
Going forward, all capacity deficiencies identified triggered by
rainfall -dependent 1/1, not planned growth, will be classified
under "Regulatory" driver.
• Capacity: Projects to address capacity deficiency for
planned growth
• Regulatory: Projects to ensure regulatory compliance and
prevent potential wet weather sewer system overflows
(SSOs)
y3
UPDATED CIP COSTS TO ADDRESS
CAPACITY DEFICIENCIES
$5O-
$40
$10
so.
CI P Drivers
• Capacity Expansion
• Regulatory (Capacity Deficiencies)
DRAFT
Current 10 -Year CIP CWMP 20 -Year CIP Total
Vfl
NEXT STEPS
• Prioritize improvements used on severity of deficiencies
and potentia impacts
• Coordinate capacity wits pipe condition priorities to
optimize CIP
■ Deve op recommendations to confirm needs:
• Leve Monitoring
• Micro -Basin F ow Monitoring & 1/1 Studies
• Insta 1 Permanent Meters
■ Projects wi 3e imp emented witiin tie 20 -Year CIP
SOME KEY TAKEAWAYS
More Robust Model
• Critical day-to-day tool
• Commercially -available
• Calibrated using flow
monitoring data
• Improved accuracy
• More detailed results
allowing for prioritization
& higher confidence
InfoWorks® ICM
•
Justified Less
Conservative
Criteria
• 10 -year event design
criteria selected
• Clarified trigger & design
criteria
• Consistent with other
agencies
• Leverages model
capabilities & allows some
surcharge
Maintain High Level
of Service at
Reduced Costs
• New criteria & projects
will prevent SSOs for 20 -
year event
• Reduced length of pipe
replacement required
• Flow monitoring & new
model reduced CIP
needs
I/4
QUESTIONS?
y7
OUTLINE
C. Planning and Rate Setting Schedule
PLANNING & RATE SETTING SCHEDULE
ID Tia;Iesrs
1 Continued Master Plan Outreach
7 Stak+tholder Advrsoiy Group - Workshops
3 li rvelop Preliminary Draft (IP
ttate Modal Planning/Prep
s Tl3tun Draft CIP/Itate StenarIos
6 Board Meeting - Present Draft CSMP
Tinchngs
7 Lhe►relop Draft (IP/Rales
8 Board Wor kstvop - Present Oraf l
CIP/Rates
9 ' foar d Meeting
10 Board Meeting
11 Board Meeting
12 ,Board Workshop - Rat & CWMP 011-4
13 Board Meeting
14 Board Meeting
15 Board Meeting
16 Board Workshop - Nates 6 CWMP (111)
17 Board Meeting Select Hates for Prop
Nntke
11 Board Meeting - Last Pow
Select Kates for Prop 218 N
Start
f
CCCSD
DRAFT PLANNING & RATE SE'T'TING MILISTOMIS
Mon 11/02/15 Wed 0S/31/17
Mori 10/03116 Wed 01/18/11
Mcti /01/16 Wed08/31/16
Mon 08/01/16 WedO8/31/16
Thu C*/01/16 Fr! 10/07/16
Thu 10/06/16 Thu 10/06/16
Mbn 10110/16
Thu 11/00/16
Mu 12/01/16
Zhu 12/15/16
Thu 01/12/17
Thu 01/26/17
Thu 02/02/17
Thu 02/16/17
Mu 03/02/17
Thu 0
Mon 10/31/16
Yfru 11/10/16
Ihu 12/01/16
Thu 12115/16
thu 01/12/17
Thu 01/26/17
Thu 02102/17
Thu 0
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6
07/02 •
02/16•
01/02 }
03/16**
03/23**
04/06 *
Iii Drop Dead Date to Mail Prop
e S hays Before t'ubk Hearing
Tue 04/18/17
H
20 Board Meeting Thu 041/10/17 Thu 04/10111
21 Board Meeting - Reserved for Flr►al CWMP Thu 05/04/17 Thu 05/04/17
22 Board Meeting
73 Board Meeting - Public Hear. to Se SSC
Approve 11ud1 t
24 Board Meetlrtig
2S Sewer Servl[e Charge tffecthnr
Project CCICSO
GAP' PLANNING & RATE SETTING MItESTONES
bate: Thu 09/22i16
Thu 05/18/17 Thu 05/18/17
Thu 06/01/17 Tftu 06/01/17
1114)46/15117 Th1J06/15/17
Sat 07/01/17 Sat 01/01/17
r..
04/181. .
04/20 ,
05/04.84
05/11
06/01
06/15 •
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•
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PART C:
PLANNING AND RATE SETTING
SCHEDULE
Danea Gemmell, Planning and Development Services Division Manager
50
THE CWMP IS ON TRACK TO FINISH IN
FY2016/2017
CWMP
Draft CWMP &Rate
Board WWTP MP CS MP CIP/Rates & Rates Selection
Meeting Board Board Board Board Board
Update Workshop Meeting Workshop Workshop Workshop
1
1 1
1
Notice to proceed
Develop Revenue Requirements
si
T
Prop Adopt
218 Rates
Notice
Adopt
Final CIB/CIP
CWMP
QUESTIONS?
ACRONYMS
• ABS = Acrylonitrile -Butadiene -Styrene
• AC = Asbestos Cement
• CCTV = Closed -Circuit Television
• CIB = Capital Improvement Budget
• CIP = Capital Improvement Plan
• COF = Consequence of Failure
• CWMP = Comprehensive Wastewater Master Plan
• d/D = Depth/Diameter
• ESRI = Environmental Systems Research Institute
• FY = Fiscal Year
• GIS = Geographical Information System
• HDPE = High Density Polyethylene
• 1/1 = Inflow & Infiltration
• LOF = Likelihood of Failure
• PVC = Polyvinyl Chloride
• RCP = Reinforced Concrete Pipe
• RDI/1 Rainfall -Dependent Inflow & Infiltration
• SSO = Sewer System Overflow
• VCP = Vitrified Clay Pipe
53