Wastewater Services

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Wastewater collection and treatment service is mandatory in the City of Santa Maria. You may start all your City services simultaneously at the City of Santa Maria Finance Department located at 110 East Cook Street, Room 6. Click the following link for more information:

Starting and Discontinuing Service

Sewer System Management Plan

Sewer System Management Plan Biennial Audit - June 2020

Hauled Wastewater Discharge Permit Application

Wastewater Discharge Permit Application - Restaurants

Wastewater Discharge Permit Application - General Industry


How does the Santa Maria wastewater collection and treatment system work?

3113-wastewaterEach improved lot in Santa Maria has a privately maintained sewer lateral connection to the city maintained sewer line located in the public street or alley fronting the properties. The sewage discharged into the lateral is conveyed by the City sewer to a "trunk sewer." The main trunks discharge to a state-of-the-art wastewater treatment plant operated by Santa Maria in conformance with all regulatory standards. After about 90 percent of the impurities are removed and treated, the remaining treated "effluent" is percolated back into the groundwater basin. The process removes any remaining contamination.

Wastewater Treatment Plant brochure


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