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.