Sewer System Management Plan Update
Department of Public Works
July 8, 2025
Purpose of Today’s Presentation
• Review SSMP update and compliance with State
regulations
• Highlight the City’s operational and infrastructure
efforts
• Set context for future investment and funding strategy • Council action: adopt updated SSMP per State WDR
requirements
A comprehensive plan for managing the
City’s sanitary sewer system
Required by SWRCB under Order No.
2022-0103-DWQ
Focused on preventing and responding to
sewer spills, ensuring system capacity,
and protecting health and environment
What is the SSMP?
1. Goals
2. Organization
3. Legal Authority
4. Operation & Maintenance
5. Design Standards
6. Spill Response
7. Blockage Control
8. System Evaluation & CIP
9. Monitoring & Modifications
10. Program Audits
11. Communication
SSMP Elements
Last Council adoption: October 2020
Updated every 6 years
Program audits required every 3 years
2025 update meets new requirements under
revised WDR order
Regulatory Compliance & Timeline
Our Goals in Sewer Management
Minimize overflows
Ensure capacity for growth and peak flows
Respond effectively to public reports
Protect public and environmental health
Maintain regulatory compliance
85 Miles of sewer lines
• System includes infrastructure dating
back to the 1920s
• Over 32% of the system was installed
or renewed between 2000–2009
10 pump stations
8,000 service laterals serving
27,500 people
Ongoing investments in newer
segments and upgrades
Our System At-A-Glance
Gravity Main by Construction Period
Installation Period Total Length (ft) Total Length (miles) Percent 1920-1929 22,235 4.2 5.28%
1930-1939 2,380 0.5 0.56%
1940-1949 9,957 1.9 2.36%
1950-1959 52,889 10.0 12.55%
1960-1969 23,782 4.5 5.64%
1970-1979 37,408 7.1 8.88%
1980-1989 11,669 2.2 2.77%
1990-1999 75,334 14.3 17.87%
2000-2009 137,285 26.0 32.57%
2010-2019 41,098 7.8 9.75%
2020 to present 5,737 1.1 1.36%
Unknown 1,722 0.3 0.41%
Total 421,498 79.8 100.00
%
Condition of Our System
Proactive cleaning of
mains and highmaintenance areas
Routine CCTV
inspections
GIS & asset
management
tools
Staff training and
spill response
readiness
Operational Highlights
2024 Sewer Master Plan Update completed
and Adopted by Council on February 11,
2025
CIP prioritizes:
- High-risk segments
- Hydraulic deficiencies
- Lift station upgrades
- Projects based on growth
and 2040 projections
Infrastructure Investment
Collaboration with residents and
businesses
Fats, Oils, Grease (FOG)
education campaign
Blockage prevention outreach
Sewer lateral inspection
requirements
Sewer lateral emergency
response support
Public Outreach & Blockage Prevention
Funded
through Sewer
Enterprise
Fund
Reviewed/adopted
annually with City
budget
Supports
future grant
and funding
opportunities
Fiscal Responsibility
Continued audits
and performance
tracking
Support
proactive system
management and
planning
Continued best
practices in
system
operations &
maintenance
Targeted capital
improvements
Enhanced
community
engagement
Funding strategy
to support
resilience &
compliance
Looking Ahead
Recommendation
• Adopt resolution approving 2025 SSMP
Update to maintain compliance with SWRCB
Order No. 2022-0103-DWQ
Questions & Discussion