Comply with State Water Resources Control Board regulations and requirements regarding sanitary system overflows (SSO). Operate and maintain 193 miles of sanitary sewers, two sewer lift stations, and 4,250 manholes. Activities include videoing, cleaning/flushing and repairing sanitary sewer infrastructure to prevent SSO’s.

Sewer System Management Plan

The State Water Resources Control Board (SWRCB) requires publicly owned sanitary sewer systems to develop and implement a Sewer System Management Plan (SSMP).  The SSMP serves as a plan to manage, operate, and maintain the City’s sanitary sewer system and to help reduce and prevent emergency spills, as well as mitigate any sewage spills that do occur. The City maintains and periodically updates its SSMP in accordance with SWRCB requirements. You may access the City’s current SSMP by clicking on the link below.  Should you have any comments or questions related to the SSMP, please contact the Public Works Department at 562-904-7110.

Sewer System Management Plan (SSMP) PDF     

Public Works Department - Utilities Division
11111 Brookshire Avenue
Downey, CA 90241-7016
T: (562) 904-7202
F: (562) 869-9832