Wastewater plants in California

486 plants indexed. Showing 355 matching current filters.

355 plants matching filters

Wilseyville STP

Hams, California

Wilseyville STP is a secondary treatment plant serving 90 people in Hams, California. It discharges 26.50 volume units and has a designed capacity of 34.07 volume units.

Secondary 90

Copper Cove STP

Calaveras County, California

Copper Cove STP is an advanced wastewater treatment plant in Calaveras County, California, serving approximately 2,783 people. It discharges treated water into local waterways, supporting environmental protection in the region.

Advanced 2,783

MOTHER LODE WWTF

Calaveras County, California

MOTHER LODE WWTF is a secondary treatment plant in Calaveras County, California, serving 133 people with a design capacity of 113.56 m³/day and a discharge volume of 37.85 m³/day.

Secondary 133

Arnold STP

Ganns, California

Arnold STP is a secondary wastewater treatment plant serving 900 people in Ganns, California. It discharges 302.83 megaliters annually and operates under U.S. EPA and state regulations.

Secondary 900

Vallecito_Douglas Flat WWTF

Murphys, California

Vallecito_Douglas Flat WWTF is a secondary treatment plant in Murphys, California, serving 400 people. It discharges 151.42 units of treated wastewater daily, with a designed capacity of 246.05 units.

Secondary 400

West Point STP

Calaveras County, California

West Point STP is a secondary treatment plant serving about 3,000 people in Calaveras County, California. It discharges 946.35 cubic meters of treated wastewater daily, with a designed capacity of 2,195.53 cubic meters.

Secondary 3,000

Snelling WWTF

Snelling, California

Snelling WWTF is a secondary treatment plant serving 380 people in Snelling, California. It discharges 113.56 million gallons per year with a designed capacity of 227.12 million gallons.

Secondary 380

Maxwell WWTP

Maxwell, California

Maxwell WWTP is a secondary treatment facility serving approximately 1,190 residents in Maxwell, California. The plant discharges treated wastewater into local waterways, supporting the Sacramento River watershed.

Secondary 1,190

ISLETON WWTF

Isleton, California

Isleton WWTF is a secondary treatment plant serving 828 residents in Isleton, California. It discharges 681.37 million gallons per year into the Sacramento-San Joaquin Delta ecosystem.

Secondary 828

GRAYSON WWTF

Galt, California

Grayson WWTF is a secondary treatment plant serving 802 people in Galt, California. It discharges 264.98 cubic meters per day and has a designed capacity of 378.54 cubic meters per day.

Secondary 802

TRANQUILLITY WWTF

Fresno County, California

Tranquillity WWTF is a secondary treatment plant in Fresno County, California, serving 1,473 people. It discharges 492.10 units of treated wastewater daily, operating under U.S. Clean Water Act regulations.

Secondary 1,473

Newcastle WWTF

Placer County, California

Newcastle WWTF is a secondary treatment plant in Placer County, California, serving 1,112 people. It discharges 378.54 megaliters of treated wastewater annually, with a designed capacity of 681.37 megaliters.

Secondary 1,112

COULTERVILLE WWTF

Mariposa County, California

COULTERVILLE WWTF is a secondary treatment plant in Mariposa County, California, serving a small population of 280. It discharges 64.35 units of treated wastewater daily, with a designed capacity of 102.21 units.

Secondary 280

Piru WWTF

Ventura County, California

Piru WWTF is an advanced wastewater treatment plant in Ventura County, California, serving 2,250 people. It discharges 870.65 acre-feet of treated water annually, with a designed capacity of 1,892.70 acre-feet.

Advanced 2,250

LA CANADA WRP

La Cañada Flintridge, California

LA Canada WRP is a secondary treatment plant in La Cañada Flintridge, California, serving 1,700 people. It discharges 757.08 cubic meters of treated wastewater daily.

Secondary 1,700

PAIGE AFFLERBAUGH WWTF

Los Angeles County, California

PAIGE AFFLERBAUGH WWTF is a secondary treatment plant in Los Angeles County, California, serving 188 people with a design capacity of 113.56 volume units. It discharges treated wastewater inland, supporting local water quality.

Secondary 188

WARM SPRINGS REHAB WWTF

Los Angeles County, California

Warm Springs Rehab WWTF is a secondary treatment plant in Los Angeles County, California, serving 264 people. It discharges 151.42 volume units daily with a designed capacity of 227.12.

Secondary 264

GORMAN WWTF

Kern County, California

Gorman WWTF is a secondary treatment plant in Kern County, California, serving 251 people. It discharges 75.71 units of treated wastewater daily, with a designed capacity of 227.12 units.

Secondary 251

TRES PINOS WWTF

Tres Pinos, California

TRES PINOS WWTF is a secondary treatment plant serving 350 people in Tres Pinos, California. It discharges 94.64 m³/day of treated wastewater into local waterways.

Secondary 350

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

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, West Point STP has the highest designed capacity at 2,196 m3/day.

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