HomeMy WebLinkAbout09.a. Sewer System Management Plan (SSMP) Five-Year Update as mandated by the California State Water Resources Control Board (SWRCB) (Handout)Z'tcn 9. a
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Item 9.a.
Sewer System Management Plan
5 Year Update
Justin J. Waples
Collection System Planner
December 20, 2012
Central Contra Costa Sanitary District
Sewer System Management Plan
State Water Resources Control Board:
Order No. 2006 -003 Waste Discharge Requirements
for Sanitary Sewer Systems
Documents activities for effectively managing the
wastewater collection system
District's initial SSMP adopted 2007
A SSMP must be updated every 5 years
r
➢ Responsibly manage, operate and maintain all parts
of the wastewater collection system and adhere to the
components of the SSMP
➢ Provide adequate capacity to convey design peak
flows
➢ Mitigate impact of Sanitary Sewer Overflows (SSOs)
➢ Minimize frequency of SSOs
Elements of SSMP
1) Introduction and Goals
2) Organization
3) Overflow Emergency Response Plan
4) Fats, Oils and Grease Control Program
5) Legal Authority
6) Operation and Maintenance Program
7) Design and Construction Standards
8) Capacity Management
9) Monitoring, Measurement & Program Modifications
10) SSMP Audits
11)Communication Program
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Notable Program Updates
➢ Changes to Capital Project Budget since 2007
➢ Initial CCTV inspection of entire District completed
2010
➢ Collection System Master Plan updated 2010
➢ Senior Engineer position added to CSOD
➢ Standard Specifications updated 2011
➢ Pump Stations Inventory updated 2011
➢ Collection System Asset Management Plan 2011
➢ Overflow Volume Estimation Chart 2012
Overflow Estimation Chart
OVERFLOW RATESQ�
for 16 3/8" r� y
RI COVER
1 GPM 2 GPM S GPM
_ 7
-10 GPM 15 GPM 20 GPM
Program Effectiveness
1999-2011
Number of Overflows
180
162
160
143 141
185
Lowest in
140
123
Central
120100
107
San
100
73 $1 S6 historyl
80 .
63
60
43 37
40 -
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0
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1999
2000 2001
2002
2003 2004 2005
2006 2007 2008 2009 2010 2011
Recommendation
➢Accept Sewer System Management Plan
5 Year Update
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