McCloud WWTF - Secondary Wastewater Treatment in McCloud, California

McCloud WWTF is a municipal wastewater treatment facility located in McCloud, Siskiyou County, California. It serves a small community of approximately 1,700 residents, providing essential sanitation services in this rural area of the state. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal wastewater. With a designed capacity of 1,135.62 megaliters per year, the facility operates well within its capacity, treating an average of 681.37 megaliters annually. As a US plant, it operates under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the California State Water Resources Control Board. The treated effluent is discharged into local waterways that ultimately drain into the Sacramento River watershed. This river system flows south through California, supporting diverse aquatic life and providing water for agriculture and communities. The plant's location inland, away from sensitive coastal areas, reduces direct marine impact.

The plant discharges into tributaries of the Sacramento River, which flows through the Central Valley before reaching the Sacramento-San Joaquin Delta and San Francisco Bay. This watershed supports critical habitats for salmon and other native fish species. The plant's secondary treatment helps protect water quality in this important river system.