TO: LINDA REICH, CITY MANAGER
FROM: HYE JIN LEE, PE, DIRECTOR OF PUBLIC WORKS
SUBJECT
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2025 Sewer System Management Plan (SSMP) Update.
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RECOMMENDATION
1) Adopt Resolution No. 2026-013 approving the 2025 Sewer System Management Plan (SSMP) update for the City of Chino to comply with the State Water Resources Control Board’s Sanitary Sewer Systems Waste Discharge Requirements (Order No. 2022-0103-DWQ); and 2) authorize the Public Works Director to execute all necessary documents on behalf of the City.
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FISCAL IMPACT
There is no fiscal impact associated with the approval of the updated SSMP.
CITY OF CHINO MISSION / VISION / VALUES / STRATEGIC ISSUES
The recommendation detailed above further the City’s values and strategic issues that serve as key pillars on which identified priorities, goals, and action plans are built, by fostering:
• Responsible Long-Range Planning
• Public Service Excellence through Internal and External Partnerships
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BACKGROUND
The City of Chino’s Sewer System Management Plan (SSMP) requires an update to maintain compliance with the State Water Resources Control Board’s Sanitary Sewer Systems Waste Discharge Requirements (Order No. 2022-0103-DWQ). This order establishes the General Waste Discharge Requirements (WDR) applicable to all publicly owned and operated sanitary sewer systems that include more than one mile of sewer line within the State of California. The WDR serves as the regulatory framework for agencies responsible for the ownership or operation of sanitary sewer collection systems that convey untreated or partially treated wastewater to publicly owned treatment facilities.
Under the WDR, each agency must report all Sanitary Sewer Overflows (SSOs) and develop, implement, and maintain a written SSMP. On December 6, 2022, the State Water Resources Control Board issued Order No. 2022-0103, which amended monitoring and reporting requirements for sanitary sewer systems. The new regulations went into effect on June 5, 2023, and mandates the City to conduct a self-audit of their SSMP every three years and complete a comprehensive update every six years. The SSMP was last updated in 2021.
The primary objective of the WDR is to reduce both the frequency and volume of SSOs by ensuring agencies effectively operate, maintain, and manage their wastewater collection systems. SSOs include any overflow, spill, release, discharge, or diversion of untreated or partially treated wastewater from a sanitary sewer system. Such events can contaminate surface and groundwater, pose risks to public health, harm aquatic life, and diminish the recreational and aesthetic value of surface waters.
ISSUES/ANALYSIS
To comply with the State regulatory requirements, staff entered into a Professional Services Agreement with Fischer Compliance, LLC to prepare the required update to the City’s SSMP. Fischer Compliance, LLC possesses the technical expertise and regulatory knowledge necessary to ensure the City’s SSMP is fully aligned with the current Waste Discharge Requirements (WDR), including the 2022 amendments to monitoring and reporting standards.
Pursuant to the WDR, all SSMPs, and any subsequent updates, must be formally adopted by the agency’s governing body. As such, City Council approval is required to maintain compliance and to demonstrate the City’s continued commitment to the proper operation, maintenance, and management of its wastewater collection system. Therefore, staff recommends that the City Council adopt Resolution No. 2026-013 approving the updated SSMP as presented.
Attachments: Resolution No. 2026-013
Sewer System Management Plan (SSMP)