Overview
Pismo Beach WWTF serves approximately 9,175 residents in Pismo Beach, California. The plant is located within 50 km of the Pacific coast and operates under US EPA and California state regulations.
The Pismo Beach Wastewater Treatment Facility (WWTF) is a municipal wastewater treatment plant serving the city of Pismo Beach, California, located in San Luis Obispo County. With a population served of about 9,175, the plant is classified as a small-to-medium agglomeration under US regulatory frameworks. Its designed capacity is 1.00 million gallons per day, reflecting the scale of the community it supports. As a US facility, the plant operates under the Clean Water Act's National Pollutant Discharge Elimination System (NPDES) permit program, administered by the California State Water Resources Control Board. The plant's discharge must meet state water quality standards to protect receiving waters. The plant's treated effluent is discharged into the Pacific Ocean via the Pismo Beach area, contributing to the coastal marine environment. The nearby waters support diverse marine life, including kelp forests and fish populations, and are part of the California Current Large Marine Ecosystem. Proper treatment is essential to prevent nutrient pollution and protect coastal water quality.
Environmental context
The plant discharges into the Pacific Ocean along the central California coast, a region characterized by upwelling ecosystems that support rich marine biodiversity. The receiving waters are part of the California Current system, which sustains fisheries, marine mammals, and seabirds. Effluent management is critical to avoid eutrophication and maintain water quality in this ecologically sensitive coastal zone.
Frequently asked questions
The Pismo Beach Wastewater Treatment Facility is located at 550 Frady Lane in Pismo Beach, California, within San Luis Obispo County.
The plant serves approximately 9,175 residents of Pismo Beach, classifying it as a small-to-medium municipal wastewater treatment facility.
The plant discharges treated effluent into the Pacific Ocean along the central California coast, where it must meet state and federal water quality standards to protect marine ecosystems.
As a US facility, the plant operates under the Clean Water Act's NPDES permit program, enforced by the California State Water Resources Control Board, which sets discharge limits and monitoring requirements.
For plants of this scale in California, secondary treatment is typically required, often involving biological processes like activated sludge or trickling filters, followed by disinfection before ocean discharge.
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