Oakhurst WWTF - Secondary Wastewater Treatment Plant in Oakhurst, California

Oakhurst Wastewater Treatment Facility (WWTF) is a municipal treatment plant located in Oakhurst, Madera County, California. Serving a population of approximately 1,726 residents, the plant provides secondary treatment for the community's wastewater. As a small-scale facility in the Sierra Nevada foothills, it plays a key role in local sanitation and water quality management. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater discharges. With a designed capacity of 946.35 units and an average daily discharge of 416.40 units, the facility operates well within its capacity. The treatment process meets federal and state standards for effluent quality before discharge. The treated effluent from Oakhurst WWTF is discharged into the Fresno River watershed, which flows into the San Joaquin River and ultimately reaches the Pacific Ocean via the Sacramento-San Joaquin Delta. The plant's operations help protect downstream aquatic habitats and support water quality in the region's river systems.

Oakhurst WWTF discharges into the Fresno River, a tributary of the San Joaquin River system. The San Joaquin River flows through California's Central Valley before entering the Sacramento-San Joaquin Delta and San Francisco Bay, an ecologically important estuary. The plant's secondary treatment helps reduce nutrient loads and protect downstream aquatic life in these water bodies.