Wastewater plants in California

486 plants indexed. Showing 93 matching current filters.

93 plants matching filters

OJAI VALLEY SD WWTF

Weldons, California

Ojai Valley SD WWTF serves approximately 20,000 people in Weldons, California. The plant operates under the US Clean Water Act and EPA NPDES permitting framework.

Not Reported 20,000

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

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

CALIF MENS COLONY WWTF

San Luis Obispo County, California

CALIF MENS COLONY WWTF serves San Luis Obispo County, California, treating wastewater for approximately 11,637 people. The plant operates under U.S. EPA and state regulations, discharging treated effluent into local waterways.

Not Reported 11,637

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

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

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

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

Summerland WWTP

Summerland, California

Summerland WWTP serves approximately 2,000 residents in Summerland, California. The plant has a designed capacity of 1.00 million gallons per day and is located within 50 km of the Pacific coast.

Not Reported 2,000

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

Cambria WQCP

Cambria, California

Cambria WQCP serves 6,500 residents in Cambria, California. The plant is located within 50 km of the Pacific coast and operates under US EPA and California state regulations.

Not Reported 6,500

Pismo Beach WWTF

Pismo Beach, California

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.

Not Reported 9,175

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

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

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

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

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

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

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

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

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, OJAI VALLEY SD WWTF has the highest designed capacity at 1 m3/day.

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