Overview
Rock Springs WWTP serves Sweetwater County, Wyoming, treating wastewater for approximately 23,000 residents. The plant operates under US Clean Water Act regulations via EPA NPDES permits.
Rock Springs WWTP is a municipal wastewater treatment facility located in Sweetwater County, Wyoming, serving a population of around 23,036. The plant is situated in the arid high desert region of southwestern Wyoming, an area characterized by coal mining and energy production. As a US facility serving a medium-sized agglomeration, the plant is subject to the Clean Water Act and operates under an EPA NPDES permit issued by the Wyoming Department of Environmental Quality. For communities of this scale, secondary treatment is the federal minimum standard, though many plants in sensitive watersheds employ advanced treatment to meet local water quality requirements. The plant's treated effluent likely discharges to a tributary of the Green River or the Bitter Creek drainage, both part of the Colorado River Basin. This water eventually flows into the Colorado River and ultimately to the Gulf of California, supporting downstream ecosystems and agricultural users in the arid West.
Environmental context
The plant discharges into the Colorado River Basin, a critical water source for the southwestern United States. The receiving waters support diverse aquatic life and are heavily managed for water supply. Downstream, the Colorado River flows through Lake Powell and Lake Mead before reaching the Gulf of California, providing habitat for endangered species like the humpback chub and razorback sucker.
Frequently asked questions
Rock Springs WWTP is located on Interchange Road in Sweetwater County, Wyoming, United States. It serves the city of Rock Springs and surrounding areas.
The plant serves approximately 23,036 people, classifying it as a medium-sized municipal wastewater treatment facility.
The plant discharges treated effluent into a local waterway within the Colorado River Basin, likely a tributary of the Green River.
As a US facility, Rock Springs WWTP operates under the Clean Water Act and is required to have an EPA NPDES permit. The Wyoming Department of Environmental Quality typically issues and enforces these permits.
For US plants serving around 23,000 people, secondary treatment is the federal minimum standard under the Clean Water Act. Many facilities in sensitive watersheds may employ tertiary treatment to meet local water quality standards.
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