The City of Manhattan Beach owns and operates a sanitary sewer collection system that serves the community by safely conveying wastewater to a publicly owned treatment facility. With a population greater than 10,000, the City is required to comply with the State Water Resources Control Board (SWRCB) Order No. 2022-0103-DWQ, Statewide General Waste Discharge Requirements (WDR) for Sanitary Sewer Systems.

This Order requires all federal and state agencies, municipalities, counties, districts, and other public entities that own or operate sanitary sewer systems greater than one mile in length to develop and implement a Sewer System Management Plan (SSMP). The SSMP establishes policies, programs, and procedures to properly manage, operate, and maintain sewer systems, with the goal of reducing the frequency and severity of Sanitary Sewer Overflows (SSOs) unintentional discharges of untreated or partially treated wastewater that can occur due to blockages, structural failures, equipment malfunctions, or other causes.

The City of Manhattan Beach Utilities Division has completed its 2025 SSMP Update in compliance with the SWRCB requirements. This comprehensive plan outlines the City’s ongoing efforts to protect public health and the environment through effective sewer system management. The SSMP includes detailed information on:

• City goals and organizational structure
• Preventive maintenance and inspection programs
• Legal authority and enforcement mechanisms
• Spill response and reporting procedures
• System evaluation, capacity assurance, and capital improvement planning

The 2025 Update documents the City’s continued commitment to responsible wastewater management, regulatory compliance, and the reduction of SSOs through proactive operation, maintenance, and infrastructure investment. To view the complete document, please click below:

 to download the 2025 Sewer System Management Plan Update (PDF).

For additional information or to obtain a hard copy, please contact the Public Works Department at (310) 802-5304.