Overview
Angel Island State Park WWTF is a secondary treatment plant in Novato, California, serving 130 people. It discharges 37.85 m³/day of treated wastewater near the San Francisco Bay.
Angel Island State Park WWTF is a municipal wastewater treatment facility located in Novato, Marin County, California. It serves a small population of 130 people, primarily supporting the state park and its visitors. The plant is situated near the coast, within 10 km of the San Francisco Bay. The facility provides secondary treatment, which is the standard level required by the US Clean Water Act for most municipal plants. Its designed capacity is 94.64 m³/day, with an actual discharge volume of 37.85 m³/day, indicating it operates well below capacity. As a small plant in a sensitive coastal area, it likely holds an NPDES permit issued by the California Regional Water Quality Control Board. The treated effluent is discharged into the San Francisco Bay watershed, a major estuary that supports diverse aquatic life and migratory birds. The plant's location on Angel Island, a state park, underscores the importance of protecting the surrounding marine environment from nutrient pollution and pathogens.
Environmental context
The plant discharges into the San Francisco Bay, a large estuary that connects to the Pacific Ocean via the Golden Gate. The bay supports critical habitats for fish, birds, and marine mammals, including the endangered California Ridgway's rail. As a coastal facility, the plant must meet stringent discharge limits to prevent eutrophication and protect recreational waters.
Frequently asked questions
The plant is located in Novato, Marin County, California, on Angel Island in the San Francisco Bay.
The plant serves a population of 130 people, primarily park visitors and staff.
The treated effluent is discharged into the San Francisco Bay, a major estuary connected to the Pacific Ocean.
The plant operates under the US Clean Water Act and is likely permitted through the National Pollutant Discharge Elimination System (NPDES) by the California Regional Water Quality Control Board.
Small coastal plants like Angel Island State Park WWTF typically provide secondary treatment, which is the minimum required by the Clean Water Act to protect sensitive marine environments.
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