Overview
San Luis Rey WWTP in Oceanside, California serves approximately 178,575 people. The plant operates under the US Clean Water Act and EPA NPDES permit program.
San Luis Rey WWTP is a municipal wastewater treatment facility located in Oceanside, California, serving a population of about 178,575. The plant is situated near the coast in San Diego County, within 50 kilometers of the Pacific Ocean. As a large agglomeration serving over 150,000 people, the plant is expected to provide at least secondary treatment under the US Clean Water Act. The facility operates under an EPA NPDES permit issued by the California State Water Resources Control Board, which sets discharge limits to protect water quality. The plant's treated effluent is discharged into the Pacific Ocean via an outfall, contributing to the coastal marine environment. The surrounding watershed includes the San Luis Rey River, which supports diverse aquatic life and flows into the ocean near Oceanside. Proper treatment is essential to protect coastal ecosystems and public health.
Environmental context
The plant discharges into the Pacific Ocean near the mouth of the San Luis Rey River, a coastal stream that drains parts of San Diego County. The receiving waters support marine habitats including kelp forests and rocky reefs, which are important for fish and invertebrate populations. The area is also used for recreation and is ecologically sensitive to nutrient loading and pollutants.
Frequently asked questions
San Luis Rey WWTP is located in Oceanside, California, United States, near the coast of San Diego County.
The plant serves approximately 178,575 people, classifying it as a large agglomeration under US EPA guidelines.
The plant discharges treated effluent into the Pacific Ocean via an outfall, likely near the San Luis Rey River mouth.
The plant operates under the US Clean Water Act and is regulated by an EPA NPDES permit issued by the California State Water Resources Control Board.
Plants of this scale typically provide at least secondary treatment, and may include advanced treatment to meet NPDES permit limits for nutrients and other pollutants.
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