Overview
LAFAYETTE STP serves approximately 3,925 residents in Lafayette, Oregon. The plant operates under U.S. Clean Water Act regulations, ensuring treated effluent meets state and federal standards before discharge.
LAFAYETTE STP is a municipal wastewater treatment facility located in Lafayette, Oregon, within Yamhill County. Serving a population of around 3,925, 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's National Pollutant Discharge Elimination System (NPDES) permit program. For small agglomerations like Lafayette, secondary treatment is typically required to reduce organic matter and suspended solids before discharge. The Oregon Department of Environmental Quality oversees compliance with these standards. The treated effluent from LAFAYETTE STP is discharged into a local waterway that flows into the Willamette River, a major tributary of the Columbia River. The Willamette River supports diverse aquatic life and is an important resource for recreation and agriculture in the region.
Environmental context
The plant discharges into a tributary of the Willamette River, which flows northward to join the Columbia River near Portland. The Willamette River watershed supports salmon and steelhead runs, as well as other native fish species. Protecting water quality in this basin is critical for maintaining healthy aquatic ecosystems and supporting downstream communities.
Frequently asked questions
LAFAYETTE STP is located on North Madison Street in Lafayette, Oregon, within Yamhill County.
The plant serves approximately 3,925 residents in the city of Lafayette and surrounding areas.
The treated effluent is discharged into a local tributary that flows into the Willamette River, part of the Columbia River basin.
As a U.S. facility, LAFAYETTE STP operates under the Clean Water Act and is regulated by the Oregon Department of Environmental Quality through an NPDES permit.
For small communities, secondary treatment is standard, which includes biological processes to reduce organic pollutants and suspended solids before discharge.
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