Overview
Williams WWTF serves approximately 5,245 residents in Williams, California. The facility operates under the US Clean Water Act, with NPDES permits regulating its discharge into local waterways.
Williams WWTF is a municipal wastewater treatment facility located in Williams, Colusa County, California. Serving a population of around 5,245, the plant is part of the region's infrastructure for managing domestic wastewater in this agricultural community. 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 community of this size, secondary treatment is typically required, with possible additional nutrient removal depending on the sensitivity of the receiving water body. The plant's treated effluent is discharged into local waterways that drain into the Sacramento River system, eventually reaching the Sacramento-San Joaquin Delta and San Francisco Bay. This watershed supports diverse aquatic life and is critical for regional water supply and ecosystem health.
Environmental context
The plant discharges into tributaries of the Sacramento River, which flows into the Sacramento-San Joaquin Delta and ultimately San Francisco Bay. This estuarine environment supports a rich diversity of fish, birds, and other wildlife, including several species of conservation concern. Nutrient loading from wastewater can contribute to algal blooms and hypoxia in the Delta, making effective treatment important for downstream water quality.
Frequently asked questions
Williams WWTF is located in Williams, Colusa County, California, United States.
The plant serves approximately 5,245 residents in the city of Williams and surrounding areas.
The plant discharges treated effluent into local waterways that flow into the Sacramento River system, eventually reaching the Sacramento-San Joaquin Delta and San Francisco Bay.
As a US facility, Williams WWTF operates under the Clean Water Act and is regulated by an NPDES permit issued by the California State Water Resources Control Board.
For a population of this size, secondary treatment is standard under the Clean Water Act. Depending on the sensitivity of the receiving water, additional nutrient removal may be required to protect water quality.
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