Wastewater plants in California

486 plants indexed. Showing 121 matching current filters.

121 plants matching filters

REDWOODS CC WWTF

Eureka, California

Redwoods CC WWTF is an advanced treatment plant serving 2,176 people in Eureka, California. It discharges 567.81 units of treated wastewater near the Pacific coast.

Advanced 2,176 Medium

Mendocino City WWTF

Mendocino, California

Mendocino City WWTF is an advanced treatment plant serving 2,256 people in Mendocino, California. It discharges 492.10 megaliters annually and is located within 10 km of the Pacific coast.

Advanced 2,256 Medium

LOLETA WWTF

Loleta, California

Loleta WWTF is a secondary treatment plant serving 750 people in Loleta, California. It discharges 151.42 megaliters of treated wastewater annually, operating under the US Clean Water Act framework.

Secondary 750 Medium

Redwood Park CSD WWTP

Del Norte County, California

Redwood Park CSD WWTP is a secondary treatment plant in Del Norte County, California, serving 160 people. It discharges 34.07 million gallons per day and is located within 10 km of the Pacific coast.

Secondary 160 Medium

Shelter Cove WWTF

Shelter Cove, California

Shelter Cove WWTF is an advanced wastewater treatment facility serving 1,045 residents in Shelter Cove, California. It discharges 673.80 units of treated wastewater daily, with a designed capacity of 1,022.06 units.

Advanced 1,045 Medium

ANCHOR BAY WWTF

Anchor Bay, California

Anchor Bay WWTF is a secondary treatment plant serving about 100 people in Anchor Bay, California. It discharges 37.85 m³/day of treated wastewater near the Pacific coast.

Secondary 100 Medium

POINT ARENA WWTF

Point Arena, California

Point Arena WWTF is a secondary treatment plant serving 1,275 people in Point Arena, California. It discharges 681.37 million gallons per year and is located within 10 km of the Pacific coast.

Secondary 1,275 Medium

MIRANDA WWTF

Eureka, California

Miranda WWTF is a secondary treatment plant in Eureka, California, serving 825 people. It discharges 151.42 volume units and is located within 10 km of the coast.

Secondary 825 Medium

Westport STF

Mendocino County, California

Westport STF is a secondary wastewater treatment plant in Mendocino County, California, serving 285 people. It discharges 94.64 million gallons per year and is located within 10 km of the Pacific coast.

Secondary 285 Medium

4S Ranch Wastewater Treatment Plant

Carlsbad, California

4S Ranch Wastewater Treatment Plant in Carlsbad, California serves approximately 59,518 people. The facility is located within 50 km of the Pacific coast and operates under U.S. EPA and California state regulations.

Not Reported 59,518 Medium

Los Alisos WRP

Dana Point, California

Los Alisos WRP in Dana Point, California serves 46,500 people. The plant is within 50 km of the coast and discharges into the San Juan Creek watershed, ultimately reaching the Pacific Ocean.

Not Reported 46,500 Medium

MNWD WWTP 3 A

Mission Viejo, California

MNWD WWTP 3 A serves Mission Viejo, California, treating wastewater for approximately 63,100 residents. The plant operates under the US Clean Water Act and discharges into the local watershed.

Not Reported 63,100 Medium

OSO CREEK WWRF

Mission Viejo, California

Oso Creek WWRF in Mission Viejo, California serves about 31,400 people. The plant is located within 50 km of the coast and discharges into the local watershed.

Not Reported 31,398 Medium

San Luis Rey WWTP

Oceanside, California

San Luis Rey WWTP in Oceanside, California serves approximately 178,575 people. The plant operates under the US Clean Water Act and EPA NPDES permit program.

Not Reported 178,575 Medium

LA SALINA WWTF

Oceanside, California

La Salina WWTF is a municipal wastewater treatment facility in Oceanside, California, serving approximately 40,000 people. It operates under the US Clean Water Act framework with NPDES permitting.

Not Reported 40,000 Medium

San Clemente WRP

San Clemente, California

San Clemente WRP is a municipal wastewater treatment plant in San Clemente, California, serving approximately 48,000 people. The facility is located within 50 km of the Pacific Ocean coast.

Not Reported 48,000 Medium

South Bay WRP

San Diego, California

South Bay WRP in San Diego, California serves over 134,000 people. The plant operates under the US Clean Water Act and EPA NPDES permitting framework.

Not Reported 134,433 Medium

North City WRP

San Diego, California

North City WRP is a major wastewater treatment plant in San Diego, California, serving over 330,000 people. It operates under the US Clean Water Act and NPDES permitting framework.

Not Reported 330,339 Medium

Point Loma WWTF

San Diego, California

Point Loma WWTF is a major wastewater treatment facility in San Diego, California, serving over 2 million people. It operates under the US Clean Water Act and discharges treated effluent into the Pacific Ocean.

Not Reported 2,066,532 Medium

San Elijo WRF

Encinitas, California

San Elijo WRF in Encinitas, California serves 26,600 people. The plant operates under the US Clean Water Act NPDES program, discharging treated wastewater into the Pacific Ocean via the San Elijo Lagoon.

Not Reported 26,600 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.

Who operates wastewater treatment in California?

Among the plants on this page, the most-referenced operator is City of San Diego Public Utilities Department. UtilityRadar's records show 3 plants linked to this operator.

What is the largest wastewater treatment plant in California?

Among the indexed plants, Mendocino City WWTF has the highest designed capacity at 1,173 m3/day.

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