Angels Camp WWTF | Wastewater Treatment Plant in Angels, California

Angels Camp WWTF is a municipal wastewater treatment facility located in Angels, Calaveras County, California. The plant serves a population of about 5,030 people, placing it in the small-to-medium agglomeration category. It is situated inland, approximately 50 kilometers from the Pacific coast, and discharges into the local watershed. As a US facility, the plant 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 of this scale, secondary treatment is typically required, and the permit sets limits on effluent quality to protect receiving waters. The treated effluent from Angels Camp WWTF likely flows into the Stanislaus River system, which is part of the San Joaquin River basin. This river system supports diverse aquatic life and provides water for agriculture and recreation. The plant plays a key role in maintaining water quality in this ecologically sensitive region.

The plant discharges into the Stanislaus River, a tributary of the San Joaquin River, which ultimately flows into the Sacramento-San Joaquin Delta and San Francisco Bay. This watershed supports critical habitats for salmon and other native fish species. The plant's operations help protect downstream water quality in a region affected by agricultural runoff and seasonal droughts.