Terminal Island WWTP - Los Angeles, California Wastewater Treatment Plant

Terminal Island WWTP is a municipal wastewater treatment facility serving approximately 130,000 people in the Los Angeles area, California. Located at 463 Ferry Street within the Port of Los Angeles, the plant is a key component of the region's wastewater infrastructure. As a coastal facility, it plays a critical role in protecting the marine environment of the Pacific Ocean. The plant operates under the US Clean Water Act, which requires NPDES permits for all discharges. For a facility of this scale serving over 100,000 people, secondary treatment is typically mandated, with additional nutrient removal in sensitive coastal areas. The designed capacity is 1.00 million gallons per day, indicating a moderate-scale plant. Treated effluent from Terminal Island WWTP is discharged into the Los Angeles Harbor, which connects to the San Pedro Bay and ultimately the Pacific Ocean. This coastal discharge requires careful management to protect marine ecosystems, including local fisheries and the diverse aquatic life of Southern California's coastal waters.

The plant discharges into Los Angeles Harbor, a part of San Pedro Bay that flows into the Pacific Ocean. This coastal environment supports diverse marine life, including fish, seabirds, and benthic communities. The harbor is also a major shipping port, so the plant's effluent must be managed to avoid impacts on water quality and aquatic habitats.