Clearlake Oaks WWTF - Lake County, California Wastewater Treatment Plant

Clearlake Oaks WWTF is a municipal wastewater treatment facility located in Lake County, California, serving a population of approximately 1,607 residents. The plant is part of the region's infrastructure for managing domestic wastewater in a rural, inland setting. As a small-scale facility in the United States, 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 plants serving fewer than 10,000 people, secondary treatment is typically required, though specific treatment processes may vary based on local discharge requirements. The plant's treated effluent is discharged into local water bodies that drain into the Sacramento River system and ultimately to the San Francisco Bay and Pacific Ocean. The region supports diverse aquatic habitats and is important for migratory fish species, making effective wastewater treatment essential for protecting downstream water quality.

The plant discharges into tributaries of the Sacramento River, which flows through California's Central Valley into the Sacramento-San Joaquin Delta and San Francisco Bay. This watershed supports critical habitats for salmon, steelhead, and other native species, and is a key resource for agriculture and drinking water. Proper treatment helps prevent nutrient pollution and protects the ecological health of this interconnected system.