Overview
SEASIDE STP serves approximately 11,820 residents in Seaside, Oregon. Located within 50 km of the Pacific coast, the plant discharges treated wastewater into the local watershed.
SEASIDE STP is a municipal wastewater treatment plant serving the city of Seaside, Oregon, United States. With a population served of about 11,820, it is classified as a medium-sized facility. The plant is situated near the Pacific coast, within 50 km of the ocean. As a US facility, SEASIDE STP operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Oregon Department of Environmental Quality. The designed capacity is 1.00 million gallons per day, indicating the plant's intended throughput. The plant's treated effluent is discharged into a receiving water body that ultimately drains to the Pacific Ocean. The local watershed supports diverse aquatic life and is part of the coastal ecosystem of the Pacific Northwest. Proper treatment is essential to protect downstream water quality and marine habitats.
Environmental context
The plant discharges into a water body that flows to the Pacific Ocean, contributing to the coastal watershed of Clatsop County. This region supports salmon runs, estuarine habitats, and migratory bird populations. The proximity to the coast means that treated effluent must meet stringent standards to prevent nutrient loading and protect marine ecosystems.
Frequently asked questions
SEASIDE STP is located on North Holladay Drive in Seaside, Clatsop County, Oregon, United States.
SEASIDE STP serves approximately 11,820 residents in the city of Seaside.
The plant discharges treated effluent into a local water body that eventually flows to the Pacific Ocean, following NPDES permit requirements.
As a US facility, SEASIDE STP operates under the Clean Water Act and is regulated by an NPDES permit issued by the Oregon Department of Environmental Quality.
Under the Clean Water Act, plants of this scale typically require secondary treatment to reduce organic matter and suspended solids before discharge.
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