Skip To ContentAbout the CityCity ServicesCity GovernmentVisit PasoBusiness DevelopmentVolunteer
City of Paso Robles
DepartmentsCity CouncilAdvisory BodiesPlanning Commission
Wastewater Division Treatment Plant
3200 Sulphur Springs Road
Paso Robles, CA 93446
(805) 237-3865
(805) 237-3886 FAX
Mon-Fri 7am to 3:30pm


The Treatment Plant Process:

Wastewater Treatment Plant Upgrade Project Status Updates

The current treatment plant process consists of physical treatment, primary treatment, trickling filters, secondary clarifiers, chlorination for disinfection and polishing ponds. Then river discharge to the Salinas River. The following links describe each process:

 Physical Treatment  |  Primary Treatment  | Trickling Filters

Secondary Clarifiers  |  Bio Solids  |  Disinfection

Polishing Ponds  |  Laboratory

Plant Staffing

Staffing for the Plant currently consists of 4 operators with State required Certifications ranging from Operator I to Operator III. Operators take care of operations, mechanical maintenance, electrical, telemetry, SCADA (Supervisory Control and Data Acquisition), recordkeeping, laboratory analysis and landscape maintenance. Staff currently work five days a week with a standby operator covering the weekends.

You are here:   Home    Government     Departments    Public Works    Wastewater    Treatment