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Data / Environmental compliance / Water, Sewage and Other Systems / California

Water, Sewage and Other Systems in California: 89 facilities

Updated November 7, 2026. Source: US EPA, Enforcement and Compliance History Online (ECHO).

EPA's ECHO database lists 89 facilities in Water, Sewage and Other Systems (NAICS 2213) in California with a formal enforcement action, penalties of $5,000 or more, three or more quarters in significant noncompliance or a federal case in the five years to November 1, 2026: 217 formal actions, 243 informal actions and $5,531,151 in penalties.

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Industry
NAICS 2213, Water, Sewage and Other Systems
State
California
Facilities
89
Formal enforcement actions
217
Informal actions
243
Penalties
$5,531,151 ($223,586 from federal cases)
Facilities with three or more quarters in significant noncompliance
24

Facilities with the largest penalties

Ranked by penalties of the last five years. Each row links to EPA's facility report.

FacilityCityStateFormal actionsPenaltiesQuarters in significant noncomplianceLatest penaltySource
California Mens ColonySan Luis ObispoCA6$1,588,6056February 26, 2025echo.epa.gov
Sacramento County Landfill (kiefer)SloughhouseCA2$1,232,8216October 6, 2025echo.epa.gov
Usnaval Air Weapons STNRidgecrestCA4$256,4300August 15, 2023echo.epa.gov
Simi Valley Water Quality Control PlantSimi ValleyCA2$195,0005May 29, 2025echo.epa.gov
Stockton RWCFStocktonCA16$185,66012July 30, 2025echo.epa.gov
Corona WWTP 1CoronaCA1$177,0000October 17, 2023echo.epa.gov
City of ST. Helena Waste Water & Reclamation PlantSaint HelenaCA1$147,00011March 30, 2023echo.epa.gov
Hyperion Treatment PlantPlaya Del ReyCA4$144,0000August 7, 2025echo.epa.gov
Oceanside WPCPSan FranciscoCA4$118,2500April 4, 2023echo.epa.gov
CCSF- Southeast Water Pollution Control PlantSan FranciscoCA3$118,2500April 4, 2023echo.epa.gov
White Slough Water Pollution Control FacilityLodiCA2$109,5002September 24, 2024echo.epa.gov
Eureka Wastewater Treatment PlantEurekaCA3$93,0001January 22, 2025echo.epa.gov
Sewer Authority Mid-CoastsideHalf Moon BayCA1$78,0000October 25, 2022echo.epa.gov
San Luis Obispo WWTPSan Luis ObispoCA4$69,0004February 14, 2024echo.epa.gov
Tulare City Waste Water PlantTulareCA12$64,61712December 5, 2024echo.epa.gov
Santa Rosa Laguna WWTPSanta RosaCA4$56,00012April 30, 2026echo.epa.gov
Modesto WWTFModestoCA3$51,0001July 30, 2025echo.epa.gov
City of Arcata Wastewater Treatment FacilityArcataCA3$48,00011January 23, 2023echo.epa.gov
Yuba City Wastewater Treatment FacilityYuba CityCA3$39,0000September 24, 2024echo.epa.gov
Camarillo Sanitary Dist Water Reclamation PlantCamarilloCA2$36,0000March 13, 2024echo.epa.gov
Las Gallinas Valley Sanitary DistrictSan RafaelCA1$33,0000October 25, 2022echo.epa.gov
City of Sunnyvale WTR PollutionSunnyvaleCA2$30,00012March 13, 2024echo.epa.gov
Carmel Area Wastewater District Treatment FacilityCarmelCA1$30,0000May 30, 2025echo.epa.gov
Bakersfield City Wastewater #3BakersfieldCA14$24,6784November 8, 2024echo.epa.gov
Davis Water Pollution Control PlantDavisCA2$24,0001January 27, 2022echo.epa.gov
Manteca WwqcfMantecaCA2$24,0000July 30, 2025echo.epa.gov
Point Loma Wastewater Treatment PlantSan DiegoCA3$22,5000November 29, 2022echo.epa.gov
Desert Water AgencyPalm SpringsCA2$22,5000December 4, 2025echo.epa.gov
US DOD Usaf Travis AFBTravis AFBCA7$21,0240August 4, 2025echo.epa.gov
Ebmud, Main WWTPOaklandCA2$20,00012December 12, 2023echo.epa.gov
City of Paso Robles Wastewater Treatment FacilityPaso RoblesCA1$18,0009June 19, 2024echo.epa.gov
Colusa WWTPColusaCA4$15,8650July 30, 2025echo.epa.gov
Valley Sanitary District WWTPIndioCA2$15,0001July 24, 2025echo.epa.gov
Echowater Resource Recovery FacilityElk GroveCA2$15,0000August 14, 2023echo.epa.gov
Lake Wildwood WWTPPenn ValleyCA1$15,0002July 30, 2025echo.epa.gov
Holtville City WWTPHoltvilleCA1$15,0000January 27, 2022echo.epa.gov
Ventura Water Reclamation FacilityVenturaCA1$15,0000October 5, 2022echo.epa.gov
Fresno/clovis Regional WWTPFresnoCA13$13,00012October 12, 2023echo.epa.gov
Nevada City Wastewater Treatment PlantNevada CityCA2$12,0000January 27, 2022echo.epa.gov
City of Tracy Waste Water Treatment PlantTracyCA1$12,0000November 12, 2021echo.epa.gov
MT View Sanitary Dist WWTFMartinezCA1$12,0000November 30, 2022echo.epa.gov
Calexico Waste Water PlantCalexicoCA2$10,3650March 21, 2023echo.epa.gov
Bakersfield City Wastewater #2BakersfieldCA4$9,7504November 8, 2024echo.epa.gov
Clear Creek WWTPAndersonCA1$9,0001May 22, 2024echo.epa.gov
D.C. Tillman Water Reclamation PlantVan NuysCA1$9,0000July 31, 2024echo.epa.gov
Redding Stillwater Wastewater Treatment PlantAndersonCA1$9,0000May 22, 2024echo.epa.gov
San Jose/santa Clara Water Pollution Control PlantSan JoseCA2$6,00012November 25, 2024echo.epa.gov
San Mateo WWTFSan MateoCA2$6,0002April 4, 2025echo.epa.gov
Hangtown Creek WWTPPlacervilleCA2$6,0000August 14, 2023echo.epa.gov
Burbank WRPBurbankCA1$6,0002August 23, 2023echo.epa.gov
Edward C. Little WRPEl SegundoCA1$6,0000October 5, 2022echo.epa.gov
Pid Water Treatment PlantMagaliaCA1$6,0000January 2, 2024echo.epa.gov
Ironhouse SD WWTPOakleyCA2$3,0000August 18, 2025echo.epa.gov
San Simeon Acres WWTFSan SimeonCA1$3,0002August 13, 2025echo.epa.gov
Benicia WWTPBeniciaCA1$3,0000March 28, 2025echo.epa.gov
Forest Shade Sewage Lift StationCrestlineCA1$3,0000August 14, 2023echo.epa.gov
Merced WWTFMercedCA1$3,0000June 5, 2024echo.epa.gov
Polonio Pass Water Treatment PlantShandonCA1$3,0000September 11, 2024echo.epa.gov
Rodeo Sanitary DistrictRodeoCA1$3,0000March 5, 2024echo.epa.gov
Water Reclamation PlantPalm SpringsCA1$2,0000September 26, 2024echo.epa.gov
Pittsburg Water Treatment PlantPittsburgCA1$1,2000March 26, 2026echo.epa.gov
West Kern Water DistrictTaftCA2$1,0002May 14, 2025echo.epa.gov
Central Contra Costa Sanitary DistrictMartinezCA5$012echo.epa.gov
City of Alturas Wastewater Treatment PlantAlturasCA4$08echo.epa.gov
Cottonwood WWTPCottonwoodCA3$01echo.epa.gov
Casitas Municipal Water DistOak ViewCA3$00echo.epa.gov
Home Garden Community Services DistrictHanfordCA3$00echo.epa.gov
Stockton RWCFStocktonCA3$00echo.epa.gov
MT. Shasta WWTPMount ShastaCA2$08echo.epa.gov
Fresno County Water Works Dist 18FriantCA2$00echo.epa.gov
Grass Valley Wastewater Treatment PlantGrass ValleyCA2$00echo.epa.gov
Pico Water DistrictPico RiveraCA2$00echo.epa.gov
City of Ukiah Wastewater Treatment PlantUkiahCA1$05echo.epa.gov
Oro Loma Sanitary DistrictSan LorenzoCA1$02echo.epa.gov
Cambria CSD WWTPCambriaCA1$00echo.epa.gov
Chester WWTPChesterCA1$00echo.epa.gov
City Benicia/water Treatment PlantBeniciaCA1$00echo.epa.gov
City of JacksonJacksonCA1$00echo.epa.gov
Crescent City WWTFCrescent CityCA1$00echo.epa.gov
East Niles Community Services DistrictBakersfieldCA1$00echo.epa.gov
Encina Water Pollution Control FacilityCarlsbadCA1$00echo.epa.gov
Los Angeles-Glendale Water Reclamation PlantLos AngelesCA1$00echo.epa.gov
Montebello Land and Water Co WSMontebelloCA1$00echo.epa.gov
Niland SD WWTPNilandCA1$00echo.epa.gov
Vallejo Flood and Wastewater DistrictVallejoCA1$00echo.epa.gov
E B M U D Orinda Water Trtmnt PlantOrindaCA0$03echo.epa.gov
Forestville POTWForestvilleCA0$03echo.epa.gov
Oxnard Wastewater Treatment Plant (owtp)OxnardCA0$03echo.epa.gov
Scwa: Sonoma Valley CsdtpSonomaCA0$03echo.epa.gov

By program

ProgramFacilitiesFormal actionsInformal actionsPenaltiesFacilities with quarters in significant noncompliance
Clean Air Act207878$1,536,52612
Clean Water Act72105155$3,486,33528
Hazardous waste (RCRA)50410$284,7040
Drinking water (SDWA)15200$00

Public domain (U.S. government work). Counts and penalties cover the five years to November 1, 2026 as ECHO publishes them in its exporter and case downloads, drawn from EPA's air, water, hazardous waste and drinking water systems and from the states that report to them. Records can be incomplete, late or corrected after this page was read. A federal case penalty that names several facilities is shown on each of them and counted once in industry, state and national totals. Each row links to EPA's own report. A quarter in significant noncompliance is EPA's term for a serious violation status in a program, not a finding of fault beyond that status. This page uses US EPA data and is not endorsed or certified by the US EPA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.