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California Tap Water Quality
EPA water quality data for 0 community water systems serving residents in California. Click any system to see violations, lead testing results, and a safety grade.
Cities in California
Los AngelesSan DiegoSan JoseSan FranciscoFresnoSacramentoLong BeachOaklandBakersfieldAnaheimStocktonRiversideSanta AnaIrvineChula VistaFremontSanta ClaritaSan BernardinoModestoMoreno ValleyFontanaOxnardHuntington BeachGlendaleSanta RosaOntarioElk GroveRancho CucamongaOceansideGarden GroveLancasterPalmdaleSalinasHaywardCoronaSunnyvaleEscondidoPomonaRosevilleTorranceFullertonVisaliaOrangePasadenaVictorvilleSanta ClaraThousand OaksSimi ValleyVallejoConcordBerkeleyClovisFairfieldEast Los AngelesRichmondAntiochCarlsbadDowneyMurrietaCosta MesaSan Buenaventura (Ventura)TemeculaSanta MariaEl MonteWest CovinaInglewoodBurbankEl CajonJurupa ValleySan MateoRialtoMenifeeDaly CityChicoNorwalkVacavilleHesperiaVistaArden-ArcadeComptonCarsonSan MarcosTracyReddingMission ViejoSouth GateSanta MonicaChinoWestminsterSan LeandroHemetIndioSanta BarbaraMercedLivermoreCitrus HeightsHawthorneWhittierSan RamonLake ForestNewport BeachMantecaBuena ParkRedwood CityAlhambraMountain ViewLakewoodFolsomTustinNapaRancho CordovaMilpitasPerrisUplandPleasantonBellflowerChino HillsCarmichaelAlamedaPittsburgApple ValleyRedlandsTurlockBaldwin ParkRocklinDublinCamarilloRedondo BeachLake ElsinoreWalnut CreekEastvaleYuba CityUnion CityTulareYorba LindaPalo AltoDavisMaderaLodiLynwoodSouth San FranciscoCastro ValleyBrentwoodLaguna NiguelSan ClementeFlorence-GrahamLa HabraPortervilleMontebelloEncinitasPico RiveraSanta CruzWoodlandSan RafaelLa MesaMonterey ParkGardenaCupertinoPetalumaSanteeGilroyHanfordSouth WhittierHighlandFountain ValleyNational CityArcadiaHacienda HeightsHuntington ParkDiamond BarYucaipaWest SacramentoSan JacintoColtonBeaumontParamountNovatoWatsonvilleGlendoraCathedral CityAliso ViejoPlacentiaPalm DesertRosemeadCovinaDelanoLincolnFlorinCypressAzusaCeresEl Dorado HillsCerritosPowayNorth HighlandsRancho Santa MargaritaLa MiradaAntelopeSan Luis ObispoNewarkRowland HeightsBreaLos BanosMorgan HillPalm SpringsRohnert ParkEl CentroLompocOakleyCampbellDanvilleSan BrunoAltadenaVineyardCoachellaHollisterRancho Palos VerdesFrench ValleyCulver CityBell GardensSan GabrielLa PresaCalexicoStantonPacificaAdelantoLa QuintaMontclairLa PuenteMonroviaFoothill FarmsMartinezClaremontWildomarTemple CityMoorparkOrangevaleWest HollywoodWestmontManhattan BeachSan Juan CapistranoOildalePleasant HillSan DimasFallbrookBellMenlo ParkFoster CityLos GatosDana PointFair OaksGoletaSpring ValleyBeverly HillsDesert Hot SpringsSeasideSan PabloAtwaterEl Paso de Robles (Paso Robles)LawndaleLa VerneLaguna HillsOrcuttLos AltosBurlingameSanta PaulaSaratogaSan CarlosMontereyEast NilesBanningSan LorenzoAtascaderoLathropEastern Goleta ValleyEast Palo AltoSuisun CityTemescal ValleyWalnutRidgecrestTwentynine PalmsBelmontLemon GroveBeniciaLemooreSouth PasadenaSangerEurekaBrawleyWindsorWascoImperial BeachHerculesEl CerritoWest Whittier-Los NietosGaltNorcoLafayetteReedleyBarstowNorth TustinSeal BeachMaywoodLoma LindaRiverbankSoledadDinubaSelmaBay PointLadera RanchSan FernandoRosemontPattersonMountain HouseLindaAshlandOakdaleCalabasasBloomingtonLaguna BeachMillbraeCorcoranCudahyEast San GabrielWillowbrookRancho San DiegoMarinaWest CarsonGranite BayWest Rancho DominguezRamonaWest Puente ValleyValindaPort HuenemeLakesideYucca ValleyDuarteAmerican CanyonSouth Lake TahoeWinter GardensLennoxLomitaRosamondMead ValleyStevenson RanchImperialLa Cañada FlintridgeOrovilleEast HemetShafterLa Crescenta-MontroseAgoura HillsCasa de Oro-Mount HelixAlbanySouth El MonteArvinHermosa BeachOrindaPrunedaleValle VistaRosedaleDixonGreenfieldPinoleCoronadoSanta Fe SpringsChowchillaSouth San Jose HillsCastaicArcataArroyo GrandePhelanNipomoCameron ParkBlytheLive OakCoalingaLaguna WoodsOlivehurstWoodcrestRancho MirageStanfordEl SegundoMcKinleyvilleMoragaBostoniaTruckeeClearlakeRio LindaUkiahFillmoreParkwayArtesiaWalnut ParkRiponKermanAlpineSusanvilleCoto de CazaLos OsosLa PalmaCherrylandEl SobranteDiscovery BayVincentPacific GroveCalifornia CityEast Rancho DominguezSalidaLemon HillIsla VistaParlierRed BluffNorth AuburnAlamoLivingstonMill ValleyHawaiian GardensMcFarlandGrass ValleyCamp Pendleton SouthAuburnNorth Fair OaksLamontOak ParkBonitaKing CityAvocado HeightsAvenalPalos Verdes EstatesCarpinteriaGrand TerraceLake Los AngelesLarkspurSolana BeachTehachapiEmeryvilleSan AnselmoGrover BeachBig Bear CityMarysvilleMendotaLindsayFortunaKingsburgSan MarinoHome GardensNewmanCommerceScotts ValleyDiamond SpringsTamalpais-Homestead ValleyView Park-Windsor HillsWintonAlum RockMuscoyRossmoorLos AlamitosSignal HillLa RivieraHalf Moon BayHealdsburgSun VillageUniversity of California-Santa BarbaraAndersonHillsboroughPiedmontSierra MadreCanyon LakeClaytonCitrusValley CenterDelhiMorro BayDel AireEast BakersfieldPlacervilleSonomaMalibuPotomac ParkRancho Mission ViejoBlackhawkFairviewLakeland VillageSoquelHillcrestFarmersvilleCalimesaShasta LakeExeterMarina del ReyEast WhittierSan Diego Country EstatesLake ArrowheadCorte MaderaGarden AcresQuartz HillRio Vista