Overview
La Salina WWTF is a municipal wastewater treatment facility in Oceanside, California, serving approximately 40,000 people. It operates under the US Clean Water Act framework with NPDES permitting.
La Salina WWTF is a municipal wastewater treatment facility located in Oceanside, California, within San Diego County. The plant serves an estimated population of 40,000 residents, placing it in the medium-agglomeration category for US wastewater systems. Its coastal proximity within 50 kilometers of the Pacific Ocean shapes its operational and environmental considerations. As a US facility, La Salina WWTF operates under the Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for any discharge to surface waters. For plants of this scale, secondary treatment is the federal minimum, though California's stricter standards may impose additional nutrient removal requirements to protect coastal water quality. The plant's designed capacity is 1.00 million gallons per day, indicating a facility sized for its service population. The treated effluent from La Salina WWTF ultimately reaches the Pacific Ocean, likely via the San Luis Rey River or local stormwater channels. The Southern California Bight is a biologically productive coastal region supporting diverse marine life, including kelp forests, fish populations, and migratory seabirds. Discharge from coastal plants must meet stringent limits to prevent eutrophication and protect recreational water quality.
Environmental context
La Salina WWTF discharges into the Southern California coastal watershed, with effluent flowing to the Pacific Ocean via the San Luis Rey River or nearby drainage systems. The coastal marine environment supports ecologically sensitive habitats such as kelp forests and rocky reefs, which are vulnerable to nutrient loading and pollutants. California's Ocean Plan sets strict effluent limits for coastal discharges to protect beneficial uses including swimming, fishing, and marine biodiversity.
Frequently asked questions
La Salina WWTF is located at 1314 South Pacific Street in Oceanside, California, within San Diego County.
The plant serves approximately 40,000 residents in the Oceanside area.
Treated effluent from La Salina WWTF is discharged into the Pacific Ocean, likely via the San Luis Rey River or local coastal drainage systems.
As a US facility, La Salina WWTF operates under the Clean Water Act and must comply with an NPDES permit issued by the California State Water Resources Control Board or the San Diego Regional Water Quality Control Board.
For a medium-sized plant in California, secondary treatment is standard, with potential additional nutrient removal to meet coastal discharge requirements under the California Ocean Plan.
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