Wastewater plants in California

486 plants indexed. Showing 485 matching current filters.

485 plants matching filters

Alberhill WWTP

Lake Elsinore, California

Alberhill WWTP serves approximately 28,000 residents in Lake Elsinore, California. The plant operates under the U.S. Clean Water Act, with a designed capacity of 1.00 million gallons per day.

Not Reported 28,000 Low

Railroad Canyon WWTP

Lake Elsinore, California

Railroad Canyon WWTP serves Lake Elsinore, California, treating wastewater for a population of 11,250. The plant has a designed capacity of 1.00 million gallons per day and operates under US EPA and state regulations.

Not Reported 11,250 Low

Michelson WRP

Irvine, California

Michelson WRP in Irvine, California serves approximately 143,000 people. The plant operates under the U. S. Clean Water Act, with NPDES permits regulating its discharge into local waterways.

Not Reported 143,072 Medium

RUNNING SPRINGS WWTF

Running Springs, California

Running Springs WWTF serves approximately 12,000 residents in Running Springs, California. The plant operates under the US Clean Water Act, which mandates secondary treatment for municipal wastewater facilities.

Not Reported 12,065 Low

COLTON WWTF

Colton, California

Colton WWTF is a municipal wastewater treatment facility serving approximately 60,100 residents in Colton, California. The plant operates under the U.S. Clean Water Act framework, discharging treated effluent into the Santa Ana River watershed.

Not Reported 60,100 Medium

OCSD WWTP No 2

Costa Mesa, California

OCSD WWTP No 2 in Costa Mesa, California, serves over 3.4 million people. It is a major wastewater treatment facility in Orange County, operating under the US Clean Water Act.

Not Reported 3,484,265 High

OCSD WRP No 1

Costa Mesa, California

OCSD WRP No 1 in Costa Mesa, California serves over 1.4 million people as a major wastewater treatment facility. It operates under the US Clean Water Act and EPA NPDES permitting framework.

Not Reported 1,443,610 Medium

Corona WWTP 3

Corona, California

Corona WWTP 3 serves approximately 25,000 residents in Corona, California. The plant is located inland in Riverside County and discharges treated wastewater into the local watershed.

Not Reported 25,000 Low

Corona WWTF 2

Corona, California

Corona WWTF 2 serves approximately 53,000 residents in Corona, California. The plant operates under the US Clean Water Act and NPDES permitting framework.

Not Reported 53,000 Low

Corona WWTF 1

Corona, California

Corona WWTF 1 serves approximately 99,000 residents in Corona, California. The plant operates under the US Clean Water Act, managing wastewater for this inland community.

Not Reported 99,000 Low

Yucaipa Valley WD WWTP

Calimesa, California

Yucaipa Valley WD WWTP serves approximately 52,100 people in Calimesa, California. The plant operates under the US Clean Water Act and NPDES permitting framework.

Not Reported 52,100 Low

Western Riverside Co Reg WWTP

Eastvale, California

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.

Not Reported 51,514 Low

BEAUMONT WWTF

Beaumont, California

Beaumont WWTF serves approximately 11,384 residents in Beaumont, California. The plant operates under the US Clean Water Act and EPA NPDES permitting framework for municipal wastewater treatment.

Not Reported 11,384 Low

IEUA Carbon Canyon WRF

Riverside, California

IEUA Carbon Canyon WRF is a wastewater treatment plant in Riverside, California, serving approximately 115,000 people. It operates under the US Clean Water Act and NPDES permit program.

Not Reported 115,345 Medium

IEUA Regional Plant No5

Chino, California

IEUA Regional Plant No5 in Chino, California serves 153,100 people as part of the Inland Empire Utilities Agency's water recycling network. The plant supports regional water sustainability in San Bernardino County.

Not Reported 153,100 Low

IEUA Regional Plant No4

Rancho Cucamonga, California

IEUA Regional Plant No. 4 in Rancho Cucamonga, California, serves approximately 84,000 people as part of the Inland Empire Utilities Agency's recycled water system, supporting water conservation in the arid region.

Not Reported 84,163 Low

IEUA Regional Plant No1

Chino, California

IEUA Regional Plant No1 in Chino, California serves approximately 480,000 people. The plant is part of the Inland Empire Utilities Agency's water recycling infrastructure.

Not Reported 479,792 Medium

BIG BEAR AREA REG WWTF

Big Bear City, California

Big Bear Area Regional WWTF serves Big Bear City, California, treating wastewater for approximately 29,462 residents. The plant operates under US EPA and California state regulations for inland wastewater treatment.

Not Reported 29,462 Low

Perris Valley Regional WRF

Lake Elsinore, California

Perris Valley Regional WRF in Lake Elsinore, California serves over 109,000 people. The plant operates under the US Clean Water Act and NPDES permit framework.

Not Reported 109,315 Low

Moreno Valley Regional WRF

Lake Elsinore, California

Moreno Valley Regional WRF in Lake Elsinore, California serves nearly 200,000 people. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge to local waterways.

Not Reported 196,495 Low

Frequently asked

How many wastewater treatment plants are in California?

UtilityRadar indexes 486 wastewater treatment plants in California, with treatment level, capacity, operator and discharge data on each record.

What is the largest wastewater treatment plant in California?

Among the indexed plants, Alberhill WWTP has the highest designed capacity at 1 m3/day.

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