Overview
Evanston WWTP serves approximately 12,359 people in Evanston, Wyoming. The plant operates under the US Clean Water Act framework, discharging treated wastewater into the Bear River watershed.
Evanston WWTP is a municipal wastewater treatment facility located in Evanston, Uinta County, Wyoming. The plant serves a population of about 12,359 residents, placing it in the small-to-medium agglomeration category for US inland communities. Under the US Clean Water Act, wastewater treatment plants of this scale are typically required to meet secondary treatment standards through National Pollutant Discharge Elimination System (NPDES) permits issued by the Wyoming Department of Environmental Quality. These permits set effluent limits for biochemical oxygen demand, total suspended solids, and other pollutants to protect water quality. The plant's treated effluent discharges into the Bear River watershed, which flows southwest into Utah and eventually into the Great Salt Lake. The Bear River is an important water resource for agriculture and wildlife in the region, supporting diverse aquatic life and migratory birds along its course.
Environmental context
The treated effluent from Evanston WWTP enters the Bear River system, which drains into the Great Salt Lake via the Bear River Migratory Bird Refuge area. This watershed supports critical habitat for fish species such as Bonneville cutthroat trout and provides water for irrigation and municipal use downstream. The plant's discharge must comply with state water quality standards to protect these ecological and human uses.
Frequently asked questions
Evanston WWTP is located at 199 12th Street, Evanston, Uinta County, Wyoming, United States.
The plant serves approximately 12,359 residents in the Evanston area.
The plant discharges treated effluent into the Bear River watershed, which flows southwest into Utah and eventually reaches the Great Salt Lake.
As a US facility, Evanston WWTP operates under the Clean Water Act, with NPDES permits issued by the Wyoming Department of Environmental Quality that set effluent limits to protect water quality.
Plants of this scale in the US typically employ secondary treatment processes such as activated sludge or trickling filters, followed by disinfection, to meet NPDES permit requirements.
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