What We Do
Petaluma’s sewer utility collects, treats, and reuses or disposes of domestic, commercial and industrial wastewater generated by Petaluma and the unincorporated Sonoma County community of Penngrove.
The wastewater collection system is the underground piping that transports raw (untreated) wastewater from businesses and residences to the treatment plant. This system consists of more than 195 miles of sewer collection pipes and nine pump stations. The wastewater is sent to the Ellis Creek Water Recycling Facility, where it is processed and recycled for irrigation or released into the Petaluma River.
On May 2, 2006 the State Water Resources Control Board (SWRCB) issued Statewide General Waste Discharge Requirements for Sanitary Systems, Water Quality Order No. 2006-0003 (order). The order requires any public agency that owns or operates a sanitary sewer system more than one mile in length comply with the requirements of the WDR in order to reduce the number of Sanitary Sewer Overflows (SSO).
View the City's Sewer System Management Plan:
View the 2018 Audit of the City's Sewer System Management Plan: