Overview
Mountain Home Sewage Lagoon serves approximately 14,206 people in Mountain Home, Idaho. The facility operates under the U.S. Clean Water Act, which mandates secondary treatment for municipal wastewater.
Mountain Home Sewage Lagoon is a municipal wastewater treatment facility located in Mountain Home, Elmore County, Idaho. The plant serves a population of about 14,206 residents, classifying it as a medium-sized agglomeration under U.S. regulatory frameworks. As a U.S. facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Idaho Department of Environmental Quality. These permits set effluent limits to protect water quality. The plant discharges treated wastewater into local waterways that ultimately drain into the Snake River basin, a major tributary of the Columbia River. The Snake River supports diverse aquatic life and is an important resource for irrigation and recreation in the region. Proper treatment helps maintain water quality in this semi-arid environment.
Environmental context
The plant's discharge enters the local watershed, which flows into the Snake River and eventually the Columbia River, reaching the Pacific Ocean. The Snake River basin supports critical habitat for salmon and steelhead, species that rely on clean water for migration and spawning. Protecting this downstream environment is essential for regional biodiversity and ecosystem health.
Frequently asked questions
Mountain Home Sewage Lagoon is located in Mountain Home, Elmore County, Idaho, United States.
The plant serves approximately 14,206 people, making it a medium-sized municipal wastewater treatment facility.
The plant discharges treated effluent into local waterways that flow into the Snake River basin, part of the larger Columbia River watershed.
As a U.S. facility, it operates under the Clean Water Act and is regulated by an NPDES permit issued by the Idaho Department of Environmental Quality, which sets effluent limits to protect water quality.
Under the Clean Water Act, municipal plants of this scale are generally required to provide secondary treatment, which removes at least 85% of biochemical oxygen demand and suspended solids.
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