Santa Maria WWTF - Santa Maria, California Wastewater Treatment Plant

Santa Maria WWTF is a municipal wastewater treatment facility located in Santa Maria, California, serving a population of over 100,000. The plant is situated in Santa Barbara County and is part of the region's critical water infrastructure. As a large agglomeration serving more than 100,000 people, the plant is expected to meet secondary treatment standards under the U. S. Clean Water Act. The designed capacity is 1.00 million gallons per day, and the facility operates under National Pollutant Discharge Elimination System (NPDES) permits issued by the California State Water Resources Control Board. The plant's treated effluent is discharged into local waterways that ultimately drain to the Pacific Ocean. The facility plays a key role in protecting downstream aquatic ecosystems and maintaining water quality in the Santa Maria River watershed.

The Santa Maria WWTF discharges into the Santa Maria River watershed, which flows westward to the Pacific Ocean near Point Sal. The river supports diverse aquatic life and provides critical habitat for migratory birds along the Pacific Flyway. The downstream environment includes sensitive coastal ecosystems that benefit from the plant's treatment processes.