Overview
Western Riverside Co Reg WWTP serves Eastvale, California, treating wastewater for approximately 51,514 residents. The plant operates under US EPA and California state regulations.
Western Riverside Co Reg WWTP is a municipal wastewater treatment facility located in Eastvale, Riverside County, California. It serves a population of about 51,514 people, placing it in the medium-agglomeration category for US regulatory purposes. However, as a facility in California, it operates under the US Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the California State Water Resources Control Board. For a plant serving this population size, secondary treatment is typically required, with possible additional nutrient removal depending on the receiving water body. The treated effluent is discharged into the Santa Ana River watershed, which flows through Southern California to the Pacific Ocean. The Santa Ana River is a critical water resource in the arid region, supporting urban water supply, agriculture, and habitat for species such as the Santa Ana sucker fish. The plant's operations are important for protecting downstream water quality and ecosystem health.
Environmental context
The plant discharges into the Santa Ana River, which flows through Riverside and Orange Counties before reaching the Pacific Ocean at Huntington Beach. The river supports diverse aquatic life and provides water for irrigation and groundwater recharge. The downstream environment includes estuarine habitats near the coast that are important for migratory birds and fish species. Effective wastewater treatment is essential to prevent nutrient pollution and protect these ecosystems.
Frequently asked questions
The plant is located at 14737 River Road in Eastvale, Riverside County, California, United States.
The plant serves approximately 51,514 people in the Eastvale area and surrounding communities.
The treated wastewater is discharged into the Santa Ana River, which flows through Southern California to the Pacific Ocean.
The plant operates under the US Clean Water Act and is regulated by an NPDES permit issued by the California State Water Resources Control Board, which sets effluent limits to protect water quality.
For a medium-sized agglomeration like this, secondary treatment is standard, with possible tertiary treatment if the receiving water body is sensitive to nutrients or other pollutants.
Nearby plants