Fillmore WWTF - Los Angeles, California Wastewater Treatment Plant

Fillmore WWTF is a municipal wastewater treatment facility located in Los Angeles, California, serving a population of around 15,145. The plant is situated in the Northridge South neighborhood and is part of the broader Los Angeles wastewater infrastructure. As a US facility, Fillmore WWTF operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the California State Water Resources Control Board. For a plant serving this population size, secondary treatment is typically required to meet effluent standards before discharge. The plant's treated effluent is discharged into the local watershed, which ultimately drains to the Pacific Ocean via the Los Angeles River or nearby channels. This coastal discharge requires careful management to protect marine ecosystems and comply with water quality standards.

Fillmore WWTF discharges into the Los Angeles River watershed, which flows through the Los Angeles Basin and empties into the Pacific Ocean at the Port of Los Angeles. The downstream environment includes sensitive coastal habitats and marine ecosystems that support diverse aquatic life. Effluent from the plant must meet stringent nutrient and pollutant limits to prevent eutrophication and protect beneficial uses of the receiving waters.