Wastewater plants in California

486 plants indexed. Showing 355 matching current filters.

355 plants matching filters

Willow Creek WWTF

Lake Arrowhead, California

Willow Creek WWTF is a secondary treatment plant serving 1,754 people in Lake Arrowhead, California. It discharges 757.08 cubic meters per day into the local watershed.

Secondary 1,754

REDWAY WWTF

Redway, California

REDWAY WWTF is a secondary treatment plant serving 888 residents in Redway, California. It discharges 416.40 units of treated wastewater daily, with a designed capacity of 757.08 units.

Secondary 888

Occidental WWTF

Santa Rosa, California

Occidental WWTF is a secondary treatment plant serving 2,543 people in Santa Rosa, California. It discharges treated wastewater into the local watershed, operating under US EPA and state regulations.

Secondary 2,543

Hopland Band WWTP

Old Hopland, California

Hopland Band WWTP in Old Hopland, California provides advanced treatment for a small community. The plant serves 140 people with a design capacity of 946.35 m³/day and discharges 75.71 m³/day.

Advanced 140

HOPLAND WWTF

Pieta, California

HOPLAND WWTF is a secondary treatment plant serving 300 people in Pieta, California. It discharges approximately 227 cubic meters per day and operates under US EPA and state regulations.

Secondary 300

GARBERVILLE WWTF

Briceland, California

GARBERVILLE WWTF is a secondary treatment plant serving 1,300 people in Briceland, California. It discharges 151.42 megaliters annually and operates under US EPA NPDES regulations.

Secondary 1,300

FORESTVILLE WWTF

Forestville, California

Forestville WWTF is a secondary treatment plant serving 827 residents in Forestville, California. It discharges 193.06 megaliters per year and operates under US EPA NPDES regulations.

Secondary 827

MONTAGUE WWTF

Montague, California

Montague WWTF is an advanced treatment plant serving 1,456 people in Montague, California. It discharges 643.52 million gallons per year and operates under US EPA NPDES regulations.

Advanced 1,456

TULELAKE STP

Tulelake, California

TULELAKE STP is a secondary wastewater treatment plant serving Tulelake, California. It treats an average daily flow of 643.52 units against a design capacity of 757.08 units, supporting a population of 2,221.

Secondary 2,221

Lower Moosa Canyon WRF

San Diego County, California

Lower Moosa Canyon WRF serves 2,100 people in San Diego County, California. The plant has a designed capacity of 1.00 million gallons per day and operates under U.S. Clean Water Act regulations.

Not Reported 2,100

Hale Avenue RRF

Escondido, California

Hale Avenue RRF serves Escondido, California, treating wastewater for approximately 143,000 residents. The plant operates under the US Clean Water Act and NPDES permit framework.

Not Reported 142,952

Santa Maria Reclamation Plant

Ramona, California

Santa Maria Reclamation Plant in Ramona, California serves 9,300 people. It operates under the US Clean Water Act with a designed capacity of 1.00 million gallons per day.

Not Reported 9,300

Rancho Santa Fe WWTF

Del Mar, California

Rancho Santa Fe WWTF serves about 5,400 residents in Del Mar, California. The plant is located within 50 km of the Pacific coast and operates under U.S. EPA and California state regulations.

Not Reported 5,388

Ralph W Chapman WRF

Rancho San Diego, California

Ralph W Chapman WRF is a wastewater treatment plant serving Rancho San Diego, California. It has a designed capacity of 1.00 million gallons per day and serves a population of 12,000.

Not Reported 12,000

Gafner Water Reclamation Plant

Carlsbad, California

Gafner Water Reclamation Plant serves Carlsbad, California, treating wastewater for approximately 10,654 residents. The facility operates under US EPA and California state regulations for water reclamation.

Not Reported 10,654

FALLBROOK WWTF 1

Fallbrook, California

Fallbrook WWTF 1 serves approximately 33,373 residents in Fallbrook, California. The plant operates under the US Clean Water Act and EPA NPDES permitting framework.

Not Reported 33,373

LEE LAKE WD WWTP

Temescal Valley, California

Lee Lake WD WWTP serves Temescal Valley, California, treating wastewater for approximately 15,344 residents. The plant operates under US EPA and California state regulations, with a designed capacity of 1.00 million gallons per day.

Not Reported 15,344

Temecula Valley Regional WRF

Lake Elsinore, California

Temecula Valley Regional WRF serves over 100,000 people in Lake Elsinore, California. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge to protect local waterways.

Not Reported 103,092

Rialto WWTP

Rialto, California

Rialto WWTP serves approximately 98,000 residents in Rialto, California. The plant operates under the US Clean Water Act framework, with NPDES permits regulating its discharge.

Not Reported 97,873

Lake Elsinore Regional WWTP

Lake Elsinore, California

Lake Elsinore Regional WWTP serves approximately 33,500 people in Lake Elsinore, California. The plant operates under the US Clean Water Act and NPDES permitting framework.

Not Reported 33,500

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, Hopland Band WWTP has the highest designed capacity at 946 m3/day.

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