Wastewater plants in California

486 plants indexed. Showing 92 matching current filters.

92 plants matching filters

SO SAN LUIS OB CO WWTF

Oceano Beach, California

SO SAN LUIS OB CO WWTF serves Oceano Beach, California, treating wastewater for approximately 70,000 residents. The plant operates under the US Clean Water Act and EPA NPDES permitting framework.

Not Reported 70,358 Medium

GUADALUPE WWTF

Santa Barbara County, California

GUADALUPE WWTF serves 7,000 people in Santa Barbara County, California. The plant operates under the US Clean Water Act and NPDES permitting framework.

Not Reported 7,000 Medium

Carpinteria WWTF

Carpinteria, California

Carpinteria WWTF serves 16,000 people in Carpinteria, California. The plant is located within 50 km of the Pacific coast and operates under U.S. Clean Water Act regulations.

Not Reported 16,000 Medium

MONTECITO WWTF

Montecito, California

Montecito WWTF serves approximately 9,500 residents in Montecito, California. The plant operates under U.S. EPA and state regulations, discharging treated wastewater into the local watershed.

Not Reported 9,500 Medium

Lompoc Regional WRP

Lompoc, California

Lompoc Regional WRP is a municipal wastewater treatment plant serving approximately 57,000 people in Lompoc, California. The facility operates under the U.S. Clean Water Act and discharges treated effluent into the Santa Ynez River watershed.

Not Reported 57,123 Medium

Watsonville WWTF

Watsonville, California

Watsonville WWTF serves approximately 64,622 residents in Watsonville, California. The plant is located near the coast and discharges treated wastewater into local waterways.

Not Reported 64,622 Medium

SANTA BARBARA WWTF

Santa Barbara, California

Santa Barbara WWTF serves 89,082 people in Santa Barbara, California. The plant is located within 50 km of the coast and discharges treated wastewater into the Pacific Ocean.

Not Reported 89,082 Medium

Goleta WWTF

Santa Barbara, California

Goleta WWTF serves 73,500 people in Santa Barbara, California. The plant operates under the US Clean Water Act, discharging treated wastewater into the Pacific Ocean via a coastal outfall.

Not Reported 73,500 Medium

CARMEL WWTF

Monterey County, California

CARMEL WWTF is a municipal wastewater treatment facility serving approximately 30,600 people in Monterey County, California. The plant is located within 50 km of the Pacific coast and operates under U.S. EPA and state regulatory frameworks.

Not Reported 30,600 Medium

Morro Bay Cayucos WWTF

Morro Bay, California

Morro Bay Cayucos WWTF serves 17,284 people in Morro Bay, California. The plant is located within 50 km of the Pacific coast and operates under US EPA and California State Water Resources Control Board regulations.

Not Reported 17,284 Medium

MRWCPA WWTF

Monterey County, California

MRWCPA WWTF serves Monterey County, California, treating wastewater for approximately 373,000 people. The plant is located near the coast and discharges into the Monterey Bay.

Not Reported 373,273 Medium

SANTA CRUZ WWTF

Santa Cruz, California

Santa Cruz WWTF serves approximately 146,000 people in Santa Cruz, California. The plant is located within 50 km of the Pacific coast and operates under US EPA and California state regulations.

Not Reported 145,995 Medium

SCOTTS VALLEY WWTF

Scotts Valley, California

Scotts Valley WWTF serves approximately 12,121 residents in Scotts Valley, California. The plant operates under the US Clean Water Act framework, discharging treated wastewater into the local watershed.

Not Reported 12,121 Medium

San Luis Obispo WRF

San Luis Obispo, California

San Luis Obispo WRF serves approximately 43,000 people in San Luis Obispo, California. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge to local waterways.

Not Reported 43,000 Medium

S MARIN SUBREG OUTFALL

Mill Valley, California

S MARIN SUBREG OUTFALL is a wastewater treatment plant in Mill Valley, California, serving approximately 28,000 people. It is located within 50 km of the coast and discharges into the San Francisco Bay watershed.

Not Reported 28,000 Medium

S BAYSIDE WWTP

Redwood City, California

S Bayside WWTP in Redwood City, California serves over 211,000 people. The plant is located within 50 km of the coast and discharges treated wastewater into the San Francisco Bay.

Not Reported 211,108 Medium

SF International Airport WQCP

Lomita Park, California

SF International Airport WQCP in Lomita Park, California serves 80,000 people. The plant operates under US EPA NPDES regulations for wastewater treatment.

Not Reported 80,000 Medium

PINOLE WWTF

Pinole, California

PINOLE WWTF serves approximately 43,000 residents in Pinole, California. The plant operates under the U.S. Clean Water Act and NPDES permit program, discharging treated wastewater into the San Francisco Bay watershed.

Not Reported 43,287 Medium

LAS GALLINAS VALLEY WWTF

San Rafael, California

Las Gallinas Valley WWTF serves approximately 30,500 residents in San Rafael, California. The plant is part of the Las Gallinas Valley Sanitary District and discharges into the San Francisco Bay.

Not Reported 30,500 Medium

Alvarado WWTF

Brisbane, California

Alvarado WWTF in Brisbane, California serves approximately 350,000 people. The plant operates under the US Clean Water Act and NPDES permit program.

Not Reported 350,000 Medium

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, SO SAN LUIS OB CO WWTF has the highest designed capacity at 1 m3/day.

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