Overview
Ridgefield WWTP serves approximately 5,175 residents in Ridgefield, Washington, USA. The plant treats municipal wastewater and discharges into the local watershed.
Ridgefield WWTP is a municipal wastewater treatment facility located in Ridgefield, Clark County, Washington, United States. It serves a population of about 5,175 people, classifying it as a small to medium-sized plant under US EPA guidelines. As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Washington State Department of Ecology. The plant's treated effluent is discharged into a local water body that ultimately drains into the Columbia River, a major Pacific Northwest waterway. The Columbia River supports diverse aquatic life, including salmon runs, and flows into the Pacific Ocean. The plant's operations are important for protecting downstream water quality and ecosystem health.
Environmental context
Ridgefield WWTP discharges into a tributary of the Columbia River, which flows through the Pacific Northwest before reaching the Pacific Ocean. The Columbia River basin supports critical salmon and steelhead habitats, making water quality management essential for regional biodiversity. The plant's location in a growing suburban area near the river underscores the importance of effective wastewater treatment to prevent nutrient and pathogen pollution.
Frequently asked questions
Ridgefield WWTP is located on West Division Street in Ridgefield, Clark County, Washington, United States.
The plant serves approximately 5,175 residents in the Ridgefield area.
The treated effluent is discharged into a local water body that flows into the Columbia River, which ultimately reaches the Pacific Ocean.
As a US facility, Ridgefield WWTP operates under the Clean Water Act and is regulated by an NPDES permit issued by the Washington State Department of Ecology.
Plants of this scale in the US typically provide secondary treatment, which includes biological processes to remove organic matter and suspended solids, as required by the Clean Water Act.
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