Quincy Industrial STP, Quincy

Overview

Quincy Industrial STP serves approximately 3,738 people in Quincy, Washington. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge to protect local water quality.

Quincy Industrial STP is a municipal wastewater treatment facility located in Quincy, Washington, serving a population of about 3,738. The plant is situated in Grant County, an inland area in the central part of the state, and is part of the regional infrastructure managing wastewater from residential and industrial sources. As a U.S. facility, the plant operates under the Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for any discharge to surface waters. Its scale suggests it handles moderate flows. The plant's treated effluent likely discharges to a nearby water body, eventually reaching the Columbia River basin, which drains to the Pacific Ocean. The Columbia River supports diverse aquatic life, including salmon runs, and is a critical resource for irrigation, recreation, and hydropower. Proper treatment helps protect downstream water quality and ecosystem health.

Environmental context

The plant is located in the Columbia River basin, which drains a vast area of the Pacific Northwest. Treated wastewater from the plant likely enters a local tributary that flows into the Columbia River, ultimately reaching the Pacific Ocean. The Columbia River supports important fish species such as salmon and steelhead, and maintaining water quality is essential for their migration and spawning. The region's semi-arid climate means that water resources are carefully managed for agricultural and municipal use.

Frequently asked questions

Quincy Industrial STP is located at 18599 Road 9 Northwest, Quincy, Washington, 98848, United States, in Grant County.

The plant serves approximately 3,738 people in the Quincy area.

The plant likely discharges treated effluent to a local water body that flows into the Columbia River basin, eventually reaching the Pacific Ocean.

As a U.S. facility, the plant operates under the Clean Water Act and is required to have an NPDES permit issued by the Washington State Department of Ecology, which sets limits on pollutants in the discharge.

For small communities, secondary treatment is standard under the Clean Water Act, often using biological processes like activated sludge or lagoons to reduce organic matter and solids.