Overview
Toppenish Treatment serves approximately 6,888 people in Yakima County, Washington. The plant operates under the US Clean Water Act, managing wastewater for the local community.
Toppenish Treatment is a municipal wastewater facility located in Yakima County, Washington, serving a population of about 6,888 residents. The plant is situated in the Yakima Valley, an agricultural region in central Washington, and plays a key role in managing local wastewater. As a US facility, Toppenish Treatment operates under the Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for wastewater discharges. For a plant serving approximately 6,888 people, secondary treatment is typically mandated to meet water quality standards. The plant's treated effluent is discharged into the Yakima River basin, which flows into the Columbia River and eventually reaches the Pacific Ocean. The Yakima River supports diverse aquatic life and is critical for irrigation in the region.
Environmental context
The plant discharges into the Yakima River watershed, which drains into the Columbia River and ultimately the Pacific Ocean. The Yakima River is a vital water source for agriculture and supports salmon and steelhead populations, making proper wastewater treatment essential for maintaining water quality and ecosystem health.
Frequently asked questions
Toppenish Treatment is located at 515 Annahat Road in Yakima County, Washington, United States.
The plant serves approximately 6,888 people in the Yakima County area.
The plant discharges treated effluent into the Yakima River basin, which flows into the Columbia River and eventually the Pacific Ocean.
As a US facility, Toppenish Treatment operates under the Clean Water Act and must comply with NPDES permits issued by the Washington State Department of Ecology.
For a plant of this size, secondary treatment is typically required under the Clean Water Act to meet water quality standards before discharge.
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