Overview
Caldwell Sewage Treatment Facility serves approximately 45,898 people in Caldwell, Idaho. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge to protect local waterways.
The Caldwell Sewage Treatment Facility is a municipal wastewater treatment plant located in Caldwell, Idaho, serving a population of about 45,898. Situated in Canyon County, the plant is part of the region's infrastructure for managing domestic and industrial wastewater from the growing community. As a US facility, the plant operates under the Clean Water Act, with discharge regulated by an EPA NPDES permit issued through the Idaho Department of Environmental Quality. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Snake River, a major tributary of the Columbia River. This river system supports diverse aquatic life and is important for irrigation and recreation in the region.
Environmental context
The Caldwell Sewage Treatment Facility discharges into the Boise River watershed, which flows into the Snake River and then the Columbia River before reaching the Pacific Ocean. The Snake River is a critical habitat for salmon and steelhead, and the plant's discharge must meet water quality standards to protect these species and downstream ecosystems.
Frequently asked questions
The plant is located at 235 Johnson Lane, Caldwell, Idaho, in Canyon County.
The plant serves approximately 45,898 people in the Caldwell area.
The plant discharges treated effluent into the local watershed, which flows into the Boise River and eventually the Snake River.
As a US plant, it operates under the Clean Water Act, with an NPDES permit issued by the Idaho Department of Environmental Quality.
Under the Clean Water Act, plants of this scale typically require secondary treatment, which includes biological processes to reduce organic matter and suspended solids.
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