HomeMy WebLinkAbout12.b. CWMP Workshop-Collection System Master Plan Update 12 . b .
COMPREHENSIVE WASTEWATER
MASTER PLAN UPDATE
Board Workshop
Part B
Collection System Master Plan Update
June 16, 2016
PART B
COLLECTION SYSTEM MASTER
PLAN UPDATE
1
06/10/16
WORKSHOP OUTLINE
�. i reatmem Mani (i N) Master Mian 5-Laws ow—taie,
• "?5[el Pldfl [)rIV2f'S & CSO:
• Tre:aVr-,&nt Plant c)j the FL!,Lire
• Key Findings and Preh,n�n�
• Preliminary Updated CIP C•r_4_
B. Brief Status Update on Collection System Master
Plan
• Collection System Model Update
• Introduction to Sewer Replacement Program using
InfoMaster
• Next Steps
a
s w
COLLECTION SYSTEM MASTER PLAN
MAJOR ELEMENTS
• InfoWorks° Model using Flow Monitoring Data
• Collection System Design Criteria & Capacity
Evaluation
• lnfoMaster° Pipeline Degradation/Replacement Risk
Model
• Pump Station Condition Assessments
• Asset Management Program Recommendations
I
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06/10/16
DYNAMIC MODEL IS A CRITICAL
DISTRICT TOOL
■ ArcSNAP -> InfoWorks ICM 1n1 Wbd&1CM
■ Parcel Consumption Data
■ General Plan / Development Info
■ Topographic & Survey Data
■ Model used to:
y Identify Capacity Deficiencies
Pipe Sizing for Capital Projects
New Development Capacity Evaluations
y Source Control—Special Discharges
2014/2015 FLOW MONITORING
,Y n
a s 36 meters,5 rain gauges, 9 weeks
48 miles tributary piping/meter
• Installed February 4-6, 2015
• Gained valuable dry weather flow
• Data for base wastewater flow rates
• Identified some areas of high 1/1
• Improved planning for future metering
• Limited data for wet weather model
calibration
Lack of saturated soil conditions
.r
}V
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06/10/16
2015/2016 FLOW MONITORING
0) • 70 meters, 5 rain gauges
_— -' • 18 miles tributary piping/meter
~' '• Increase coverage with more meters
1a
Capture storm with saturated soils
Capture larger storm event, if possible
- "' ' • Refine 1/1 high response areas
-: Improve model confidence &accuracy
Y Confirm Peak Flows to Treatment Plant
v Evaluate Design Criteria
' ➢ Identify/Confirm Capacity Deficiencies
y Day-to-Day Model Use
Additional Features(Pump-Arounds,
Emergency Flow Routing,etc.)
2015/2016 FLOW MONITORING
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06/10/16
MARCH 4 - MARCH 11 RAINFALL
2-YEAR, 24-HOUR EVENT STORM (UP TO 5.2
Fuld Dila Ciiitbin
f
§alai
9
4A
i
•GLV 'I I
im
kI WOV L�W.90 Sm-.m lOmW 3'1 COW ]a W:W Y1WW Yle W.01 Y11 a1M _.�.. ..
MASTER PLAN WILL UPDATE THE PREVIOUS COLLECTION
SYSTEM CAPACITY RECOMMENDED PROJECTS
Pleasant Mill-
PteasantMilV6Myson�Mek Note:Master Plan will be
(inplDgtess) updated and projects
r= verified after dynamic
hydraulic model completed
f.atayane- ` c
Pleasant Mlll Roatl �' r
�7.
(Completed in FY 2A71/12) C—
®J-o e
2 a u•G .
Walnut CMek-
aa-c Walnut Bova
- l
r—
rao�r o+way t~'=
oa�
..Legend - - — -- San Rankan- .n -
C:apeclly nehclency G`oup Pircan[Full Pip.Capacity San P:atnOn SChidule C \w
O , (M,G D.v.lapm.nF,a-year.ennt)
No 91op® El— NM �
5
06/10/16
CURRENT APPROACH FOR CAPACITY
DESIGN CRITERIA BASED ON 2010 CSMP
• Return period criteria
• 5-year event triggers deficient sewers & relief project in CIP
• 20-year event used for design of replacement pipe
• Historical event
• Based on peak flow return period (PICS/MOST results)
• Capacity deficiency criteria
• Deficiency if q/Q > 100% (highest priority if >130%)
• Design —d/D per District Design Standards
• Master Plan Team evaluating all existing criteria
for Design Standard recommendations
COLLECTION SYSTEM INSTALLATION PROFILE
BY PIPE MATERIAL
400
1�
3lO
150
nu
150
fro
50
1910.1919 19:V•2959 1.1999 19W 1949 79541459 11.1. 197619]9 1940.1989 1490-i999 70003009 201 fl—
6
06/10/16
COLLECTION SYSTEM REPLACEMENT PROFILE
OF GRAVITY SYSTEM IN MILES
70
. Okulaled Npo Rap"—(WqO )Laxd o
--4 dere aM a—ed wrvieo We
G0
—AnRIJI Dip.,Replxemml{milaa)
So
40
)11
Ye
INFOMASTER® ALLOWS INTEGRATED
PLANNING FOR PIPELINE REPLACEMENT
1. Utility GIS 2. CMMS
• Pipes Cleaning frequency/method
File geodatabase E 3. CCTV
/InfoMastero\ • District Scoring
5. Engineering #Arc Method ESRI • Scores
• Budget&cost data GIs
• Failure scores 4. GIS
• Reliability method • Waterways
• Risk matrix settings • Schools,Hospitals
• Rehab logic layout • Major Roadways
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06/10/16
INFOMASTERO RISK ANALYSIS
Multiple Consequence
Likelihood Calculation q
of Failure options of Failure
CCN -acma cap arty Hydraulic Model
Data Results
Pipe Aye i—— - Rosasu.scna= GIS Data
pipe •, SOWL:.Rs�s.
material Calculation , w GIs Data
Cleaning apo owwa
Data of Risk �- Other
ami n xg 19yR11 Risk Class Example Capital Action
_._.__..
Lar-Lee �i�� wF.yMw,ler'-rrr w.xy,
fjEpp,t3Gmb 1B s'val ZJ irl
[NgM1
Iz ae.'ess ea.t1p"�01 loiaan m� High Standard Prionty in LIP/Biannual Operational
r-...c .ea x�xee Frequency
9pp.0.3�1e Iger,0.12x1-alrr..aao,tr.
Medium tow Priority in CIP/1 in S'kars Operational
s woman mre waae alx 1;,o.nniaer 'Frequency
(. a-Yeew Ls
13pw assts. vcoasn ea� , Low i in 20 Years Operational Frequency
cm.»aLee
Negl4eible Wait for a problem to arix
EXAMPLE OF INFOMASTERO DEGRADATION
MODELS
Survival Probability
t DI t AC t Steel
120-
110-
1004
20110100
SO
*� 80
Go-
20
50
40-
30-
20-
I I
D3020D 6 1D 15 211 25 30 35 40 45 50 55 60 65 70 75 80 55 90 95 100105110115120125
Age
1
8
06/10/16
EXAMPLE OF INFOMASTERO RISK MAPS
�4
d�
l� _
4-
ler,��-
EXAMPLE OF INFOMASTERO RISK CHARTS
- — -- - ox
:?x;0. hAQ* Q D hft Caueby/p,P= M 9-r b/UWAW.Rs2083_M 00*MCein W 96.6Y.N.MUPe b,I
Average Risk by Diameter
■Aruye 9b.t
a,0
126
140
30.
35C
3,q
aa-
We-
290
dqWe7811
a 2�
7w
770
11D
16q
150
tw
l2D
tqq
60
w
.c
7 1 5 6 8 10 12 14 16 t6 16 M 2< 22 2+ k 33 36 a 12 s5
DI8111M+
9
06/10/16
EXAMPLE OF INFOMASTER® PIPELINE
REPLACEMENT PROGRAM SCENARIOS
Baseline Regg valent Lost -
.w. mi6i earW Gay!.5.�.+>rry Rpw 0.b1RF,o-t C�d P.Nar.r Aryan __
[j SMxeestircRKae[emml USYtW M1 tnflgrn
Baseline Replacement Cost
wuam
MASTER PLAN & STAFF COMPLETED CONDITION
ASSESSMENT OF DISTRICT'S PUMP STATIONS
10
06/10/16
ASSET MANAGEMENT PROGRAM
RECOMMENDATIONS WILL BE DEVELOPED
• Large Diameter Pipeline Assessments
• Forcemain Assessments
• Long-Term Flow Monitoring
THE CWMP IS ON TRACK TO FINISH IN
FY2016/2017
Board Board Board Present
Meeting Workshop Workshop CIB/CIP
1 1 1
t tt ttt
NTP Draft Final Prop Final Adopt
20-Year CIP 20-Year CIP 218 CWMP CIB/CIP
Notice Report
Develop Revenue
Requirements Adopt
Rates
11
06/10/16
NEXT STEPS
• Complete Model Calibration
• Evaluate Design Criteria & Capacity Deficiencies
• Complete InfoMaster Model & Pipe Replacement
Program Recommendations
• Package Projects, Draft CIP, Develop Rate Scenarios
• Collection System Master Plan Board Updates
• Present Draft CIP & Rates November 2016
• Draft Master Plan Report December 2016
• Final Draft Master Plan Report April 2017
I'
QUESTIONS?
12