Wastewater plants in California

486 plants indexed.

486 plants

SAN ARDO WWTF

Valleton, California

SAN ARDO WWTF is a secondary treatment plant serving 500 people in Valleton, California. It discharges 302.83 m³/day of treated wastewater, operating under US EPA NPDES regulations.

Secondary 500 Low

Oak Shores WWTF

Oak Shores, California

Oak Shores WWTF is a secondary treatment plant serving 751 residents in Oak Shores, California. It discharges 193.06 volume units daily, with a designed capacity of 287.69 volume units.

Secondary 751 Low

CUYAMA WWTF

New Cuyama, California

CUYAMA WWTF is a secondary treatment plant in New Cuyama, California, serving 800 people. It discharges 151.42 megaliters annually and has a designed capacity of 567.81 megaliters.

Secondary 800 Low

AVILA BEACH WWTF

Avila Beach, California

Avila Beach WWTF is a secondary treatment plant serving 500 people in Avila Beach, California. It discharges 227.13 m³/day of treated wastewater near the Pacific coast.

Secondary 500 Medium

BEAR CREEK ESTATES WWTF

Santa Cruz County, California

Bear Creek Estates WWTF is a secondary treatment plant serving 200 people in Santa Cruz County, California. It discharges 37.85 units of treated wastewater daily.

Secondary 200 Low

SAN JUAN BAUTISTA WWTF

San Juan Bautista, California

San Juan Bautista WWTF is a secondary treatment plant serving 1,800 people in California. It discharges 757.08 m³/day of treated wastewater, with a designed capacity of 1,022.06 m³/day.

Secondary 1,800 Low

Pfeiffer Big Sur WWTF

Monterey County, California

Pfeiffer Big Sur WWTF is an advanced treatment plant serving 500 people in Monterey County, California. It discharges 208.20 megaliters of treated wastewater annually, with a designed capacity of 378.54 megaliters.

Advanced 500 Low

Boulder Creek WWTF

Santa Cruz County, California

Boulder Creek WWTF in Santa Cruz County, California, is a secondary treatment plant serving 700 people. It discharges 151.42 units of treated wastewater and has a designed capacity of 757.08 units.

Secondary 700 Low

SAN SIMEON ACRES WWTF

San Simeon, California

SAN SIMEON ACRES WWTF is a secondary treatment plant serving 3,750 people in San Simeon, California. It discharges 378.54 m³/day of treated wastewater near the Pacific coast.

Secondary 3,750 Medium

SAN MIGUEL STP

San Miguel, California

SAN MIGUEL STP is a secondary treatment plant serving 1,400 people in San Miguel, California. It discharges 378.54 m³/day of treated wastewater into the local watershed.

Secondary 1,400 Low

COUNTRY CLUB EST WWTF

Los Osos, California

Country Club Est WWTF is a secondary treatment plant serving 1,400 people in Los Osos, California. It discharges 75.71 million gallons per year and is located within 10 km of the coast.

Secondary 1,400 High

CHUALAR TREATMENT PONDS

Salinas, California

Chualar Treatment Ponds in Salinas, California provides secondary treatment for a small population of 1,190. The plant discharges 151.42 megaliters of treated wastewater annually.

Secondary 1,190 Medium

Lake Cachuma County Park WWTF

Santa Barbara County, California

Lake Cachuma County Park WWTF is a secondary treatment plant serving 1,390 people in Santa Barbara County, California. It discharges treated wastewater into the local watershed near Lake Cachuma.

Secondary 1,390 Low

LOG CABIN RANCH WWTF

La Honda, California

Log Cabin Ranch WWTF is a secondary treatment plant serving 220 people in La Honda, California. It discharges 68.14 megaliters per year and is located within 10 km of the Pacific coast.

Secondary 220 Medium

BOLINAS WWTF

Bolinas, California

Bolinas WWTF is a secondary treatment plant serving 885 residents in Bolinas, California. It discharges 174.13 units of treated wastewater daily, with a designed capacity of 246.05 units.

Secondary 885 Medium

Angel Island State Park WWTF

Novato, California

Angel Island State Park WWTF is a secondary treatment plant in Novato, California, serving 130 people. It discharges 37.85 m³/day of treated wastewater near the San Francisco Bay.

Secondary 130 Medium

PARADISE COVE WWTF

Tiburon, California

Paradise Cove WWTF is a secondary treatment plant in Tiburon, California, serving 54 people. It discharges 37.85 million gallons per year into the San Francisco Bay.

Secondary 54 Medium

Tomales WWTP

Tomales, California

Tomales WWTP is a secondary treatment plant serving 325 people in Tomales, California. It discharges 75.71 units of treated wastewater daily, with a designed capacity of 151.42 units.

Secondary 325 Medium

OCEANA MARIN WWTF

Novato, California

Oceana Marin WWTF is a secondary treatment plant in Novato, California, serving 526 people. It discharges 75.71 units of treated wastewater and is located within 10 km of the coast.

Secondary 526 High

Port Costa WWTF

Port Costa, California

Port Costa WWTF is a secondary treatment plant serving 350 people in Port Costa, California. It discharges 22.71 million gallons per year and is located within 10 km of the coast.

Secondary 350 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, SAN JUAN BAUTISTA WWTF has the highest designed capacity at 1,022 m3/day.

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