Overview
NEWPORT STP serves Newport, Washington, treating wastewater for approximately 3,040 residents. The plant operates under U.S. EPA and Washington state regulations, discharging into the Pend Oreille River watershed.
NEWPORT STP is a municipal wastewater treatment plant located in Newport, Washington, serving a population of about 3,040. Situated in Pend Oreille County, the plant is part of the region's infrastructure for managing domestic wastewater from this small community. As a U.S. facility, the plant operates under the Clean Water Act, with National Pollutant Discharge Elimination System (NPDES) permits issued by the Washington State Department of Ecology. The plant's treated effluent is discharged into the Pend Oreille River, which flows north into Canada and eventually joins the Columbia River system. This watershed supports diverse aquatic life and is an important corridor for migratory fish species, including salmon and steelhead. The plant's operations are subject to state water quality standards to protect downstream ecosystems.
Environmental context
The Pend Oreille River, receiving water for NEWPORT STP, flows northward into British Columbia, Canada, before joining the Columbia River. This river system supports a variety of fish species, including bull trout and white sturgeon, and is part of a larger watershed that drains into the Pacific Ocean. The plant's discharge must comply with Washington state water quality standards to protect aquatic habitats and downstream uses.
Frequently asked questions
NEWPORT STP is located at 871 Union Avenue, Newport, Washington, in Pend Oreille County, United States.
The plant serves approximately 3,040 residents in the Newport area.
The plant discharges treated effluent into the Pend Oreille River, which flows north into Canada and eventually joins the Columbia River system.
As a U.S. facility, NEWPORT STP operates under the Clean Water Act and must comply with an NPDES permit issued by the Washington State Department of Ecology, which sets limits on pollutants to protect water quality.
For small communities under 10,000 people, secondary treatment is typically required under the Clean Water Act, which involves biological processes to reduce organic matter and suspended solids.
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