Overview
WILLOWS WWTF is a municipal wastewater treatment plant serving Willows, California. It operates under the US Clean Water Act's NPDES permit program.
WILLOWS WWTF is a municipal wastewater treatment facility located in Willows, Glenn County, California. The plant serves a population of approximately 6,107 residents in the Willows area, providing essential wastewater management for this inland community in the Sacramento Valley. As a US-based facility, the plant operates under the Clean Water Act and is regulated through the National Pollutant Discharge Elimination System (NPDES) permit program. For a plant serving a population of this size, secondary treatment is typically required, with possible additional nutrient controls depending on the receiving water body's sensitivity. The plant's treated effluent is discharged into local waterways that ultimately drain into the Sacramento River system, which flows through the Central Valley to the Sacramento-San Joaquin Delta and San Francisco Bay. This watershed supports diverse aquatic life and is an important ecological corridor in Northern California.
Environmental context
The plant discharges into the Sacramento River watershed, which flows through the Sacramento Valley to the Sacramento-San Joaquin Delta and ultimately San Francisco Bay. This downstream environment supports critical fish species including Chinook salmon and steelhead trout, and the delta is a vital estuarine habitat. The region's Mediterranean climate with seasonal rainfall influences flow patterns and pollutant concentrations.
Frequently asked questions
WILLOWS WWTF is located on Highway 99W in Willows, Glenn County, California, in the United States.
The plant serves approximately 6,107 residents in the Willows area.
The plant discharges treated effluent into local waterways that drain into the Sacramento River system, which flows to the Sacramento-San Joaquin Delta and San Francisco Bay.
As a US facility, WILLOWS WWTF operates under the Clean Water Act and is regulated through the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the California State Water Resources Control Board.
For a plant of this size, secondary treatment is typically required under the Clean Water Act, which includes biological treatment to remove organic matter and suspended solids. Additional nutrient removal may be needed if the receiving water body is sensitive.
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