Apr 15, 2026 · 7 min read
PFAS "Forever Chemicals" in US Drinking Water: 2026 Update
PFAS contamination affects an estimated 200 million Americans. Here's what the latest EPA enforcement means for your tap water.
California Tap Water Quality
894 cities · 43,976,321 people served · 3,697 EPA violations (last 5 years)
Cities Map (250 of 894 with coordinates)
Loading map...
Pin locations from ZIP-code centroids · click a pin for details
All Cities in California
LOS ANGELES24 violations
F
SAN JOSE5 violations
C
OAKLAND2 violations
B
SAN DIEGO9 violations
D
SACRAMENTO58 violations
F
BURLINGAME0 violations
A
ANAHEIM1 violation
B
PERRIS0 violations
A
FRESNO75 violations
F
LONG BEACH2 violations
B
IRVINE21 violations
F
RIVERSIDE0 violations
A
SAN BERNARDINO40 violations
F
ALHAMBRA0 violations
A
FREMONT1 violation
B
COVINA0 violations
A
HAWTHORNE0 violations
A
DOWNEY0 violations
A
SANTA ANA0 violations
A
NEWHALL0 violations
A
EL MONTE22 violations
F
LA MESA16 violations
F
PALM DESERT2 violations
B
MODESTO0 violations
A
SPRING VALLEY0 violations
A
FONTANA0 violations
A
ROSEMEAD1 violation
B
STOCKTON78 violations
F
OXNARD4 violations
C
RANCHO CUCAMONGA0 violations
A
RANCHO SANTA MARGARITA0 violations
A
HUNTINGTON BEACH5 violations
C
CONCORD1 violation
B
PASADENA18 violations
F
CHULA VISTA0 violations
A
GLENDALE0 violations
A
CORTE MADERA0 violations
A
SANTA ROSA15 violations
F
ONTARIO0 violations
A
POMONA4 violations
C
JURUPA VALLEY0 violations
A
PLEASANTON1 violation
B
CORONA1 violation
B
GARDEN GROVE0 violations
A
ESCONDIDO2 violations
B
OCEANSIDE0 violations
A
LAGUNA HILLS1 violation
B
LAKE ELSINORE0 violations
A
HAYWARD0 violations
A
RIALTO0 violations
A
SUNNYVALE0 violations
A
SAN DIMAS0 violations
A
ROSEVILLE1 violation
B
TEMECULA0 violations
A
PLACERVILLE0 violations
A
FULLERTON0 violations
A
BAKERSFIELD119 violations
F
VICTORVILLE0 violations
A
RANCHO CORDOVA14 violations
F
VISTA0 violations
A
CLOVIS63 violations
F
SANTA CLARA0 violations
A
PALMDALE2 violations
B
ENCINITAS0 violations
A
ORANGE0 violations
A
VALLEJO0 violations
A
AUBURN0 violations
A
FAIRFIELD4 violations
C
REDDING10 violations
D
SANTA BARBARA3 violations
C
DAVIS0 violations
A
ANTIOCH0 violations
A
VENTURA18 violations
F
SAN MARCOS6 violations
D
COSTA MESA0 violations
A
AZUSA1 violation
B
SANTA MARIA2 violations
B
HIGHLAND0 violations
A
SOUTH LAKE TAHOE1 violation
B
TORRANCE0 violations
A
IMPERIAL BEACH2 violations
B
BURBANK0 violations
A
DALY CITY0 violations
A
WALNUT0 violations
A
HESPERIA1 violation
B
ELMIRA0 violations
A
PACIFIC GROVE0 violations
A
TRACY3 violations
C
CHINO7 violations
D
MERCED2 violations
B
SANTA CRUZ16 violations
F
SIMI VALLEY0 violations
A
CARLSBAD0 violations
A
SANTEE4 violations
C
REDWOOD CITY2 violations
B
WESTMINSTER0 violations
A
MADERA160 violations
F
HEMET2 violations
B
NAPA11 violations
F
CAMARILLO0 violations
A
FOLSOM0 violations
A
INDIO2 violations
B
MANTECA1 violation
B
GOLETA1 violation
B
PLACENTIA0 violations
A
BUENA PARK0 violations
A
MILPITAS0 violations
A
UPLAND0 violations
A
MOUNTAIN VIEW0 violations
A
INGLEWOOD0 violations
A
REDLANDS1 violation
B
SOUTH GATE0 violations
A
CHINO HILLS0 violations
A
COMPTON0 violations
A
WHITTIER0 violations
A
PALM SPRINGS1 violation
B
TULARE8 violations
D
BALDWIN PARK0 violations
A
TURLOCK1 violation
B
CALABASAS0 violations
A
YUBA CITY0 violations
A
PALO ALTO0 violations
A
LODI2 violations
B
SAN LUIS OBISPO22 violations
F
NEWPORT BEACH0 violations
A
WATSONVILLE5 violations
C
CITRUS HEIGHTS0 violations
A
TUSTIN0 violations
A
LYNWOOD0 violations
A
BEAUMONT0 violations
A
LAKEWOOD0 violations
A
HANFORD5 violations
C
PORTERVILLE13 violations
F
WOODLAND20 violations
F
BRENTWOOD22 violations
F
SALINAS305 violations
F
NOVATO1 violation
B
LAGUNA BEACH0 violations
A
LA HABRA0 violations
A
PICO RIVERA0 violations
A
PITTSBURG0 violations
A
MONTEREY PARK1 violation
B
PETALUMA1 violation
B
GILROY5 violations
C
YUCAIPA4 violations
C
GRASS VALLEY0 violations
A
FALLBROOK0 violations
A
TRUCKEE0 violations
A
FOUNTAIN VALLEY0 violations
A
DELANO0 violations
A
ROWLAND HEIGHTS0 violations
A
MONTCLAIR0 violations
A
PARAMOUNT0 violations
A
APPLE VALLEY4 violations
C
ROHNERT PARK0 violations
A
CAMP PENDLETON0 violations
A
CERES6 violations
D
LINCOLN0 violations
A
HOLLISTER8 violations
D
WEST SACRAMENTO1 violation
B
THOUSAND OAKS0 violations
A
LAKE FOREST7 violations
D
SAN CLEMENTE0 violations
A
LOMPOC19 violations
F
ARCADIA1 violation
B
GLENDORA0 violations
A
POWAY0 violations
A
COLTON0 violations
A
LOS BANOS2 violations
B
BREA0 violations
A
EL CENTRO9 violations
D
CERRITOS0 violations
A
BELLFLOWER0 violations
A
MORGANN HILL0 violations
A
OAKLEY54 violations
F
DESERT HOT SPRINGS0 violations
A
ELK GROVE0 violations
A
COACHELLA0 violations
A
ADELANTO1 violation
B
LEMOORE14 violations
F
SAN BRUNO0 violations
A
RIDGECREST0 violations
A
MONTEBELLO0 violations
A
CARMICHAEL0 violations
A
SOQUEL0 violations
A
MOORPARK0 violations
A
BEVERLY HILLS0 violations
A
LOMA LINDA0 violations
A
CALEXICO2 violations
B
LEBEC21 violations
F
LIVERMORE0 violations
A
PACIFICA0 violations
A
MARINA0 violations
A
MONROVIA0 violations
A
SONORA2 violations
B
VACAVILLE40 violations
F
RAMONA3 violations
C
HUNTINGTON PARK0 violations
A
FAIR OAKS0 violations
A
FOSTER CITY0 violations
A
STANFORD0 violations
A
LA CRESCENTA0 violations
A
PASO ROBLES52 violations
F
LAKESIDE0 violations
A
OROVILLE2 violations
B
LATHROP0 violations
A
ATASCADERO0 violations
A
SAN ANDREAS7 violations
D
TEHACHAPI2 violations
B
TWENTYNINE PALMS0 violations
A
UKIAH0 violations
A
BANNING0 violations
A
MANHATTAN BEACH0 violations
A
SANTA PAULA0 violations
A
EAST PALO ALTO0 violations
A
LA VERNE1 violation
B
MARTINEZ0 violations
A
YUCCA VALLEY0 violations
A
GRANITE BAY2 violations
B
BELMONT0 violations
A
IMPERIAL1 violation
B
ALTADENA0 violations
A
VALLEY CENTER0 violations
A
ATWATER0 violations
A
DINUBA1 violation
B
NORCO1 violation
B
SOLEDAD2 violations
B
PHELAN0 violations
A
VERNON0 violations
A
EUREKA1 violation
B
WASCO0 violations
A
BIG BEAR LAKE0 violations
A
BENICIA0 violations
A
OLIVEHURST0 violations
A
PATTERSON0 violations
A
BRAWLEY0 violations
A
REEDLEY2 violations
B
OAKDALE1 violation
B
GALT1 violation
B
SANGER3 violations
C
BOULDER CREEK3 violations
C
WINDSOR0 violations
A
SOUTH PASADENA0 violations
A
SHAFTER0 violations
A
MOUNTAIN HOUSE0 violations
A
SEAL BEACH0 violations
A
RIVERBANK19 violations
F
QUARTZ HILL0 violations
A
SAN FERNANDO0 violations
A
ARROYO GRANDE32 violations
F
SUTTER CREEK2 violations
B
EL VERANO0 violations
A
CHICO33 violations
F
MILLBRAE1 violation
B
CORCORAN0 violations
A
CUDAHY0 violations
A
MENLO PARK0 violations
A
ARCATA0 violations
A
MARYSVILLE4 violations
C
TEMESCAL VALLEY0 violations
A
PORT HUENEME0 violations
A
RANCHO SANTA FE0 violations
A
ANDERSON5 violations
C
AMERICAN CANYON0 violations
A
CRESCENT CITY2 violations
B
TAFT0 violations
A
NORWALK0 violations
A
LOMITA0 violations
A
GRAND TERRACE0 violations
A
CUTTEN0 violations
A
ARVIN1 violation
B
LAMONT0 violations
A
SAN JACINTO0 violations
A
CHOWCHILLA0 violations
A
SANTA FE SPRINGS0 violations
A
GREENFIELD1 violation
B
HALF MOON BAY0 violations
A
MCKINLEYVILLE0 violations
A
SAUSALITO0 violations
A
COALINGA4 violations
C
ROSAMOND44 violations
F
OAK VIEW2 violations
B
PALOMAR MOUNTAIN0 violations
A
KERMAN1 violation
B
LAKEPORT1 violation
B
CRESTLINE2 violations
B
FILLMORE3 violations
C
ORANGEVALE0 violations
A
DISCOVERY BAY0 violations
A
PINEDALE0 violations
A
EL SEGUNDO0 violations
A
BLYTHE1 violation
B
MOFFETT FIELD0 violations
A
CARPINTERIA0 violations
A
RED BLUFF10 violations
D
LA PALMA0 violations
A
RIPON0 violations
A
FORT IRWIN0 violations
A
RIO LINDA0 violations
A
VANDENBERG SFB0 violations
A
LIVINGSTON1 violation
B
POINT MUGU0 violations
A
PARLIER1 violation
B
LA PUENTE0 violations
A
CALIFORNIA CITY0 violations
A
MCFARLAND6 violations
D
MORRO BAY2 violations
B
JAMUL8 violations
D
WESTLAKE VILLAGE0 violations
A
KINGSBURG0 violations
A
NIPOMO0 violations
A
SUSANVILLE0 violations
A
CLEARLAKE4 violations
C
AVENAL6 violations
D
LINDSAY44 violations
F
TRABUCO CANYON0 violations
A
SOUTH SAN FRANCISCO0 violations
A
SONOMA1 violation
B
GROVER BEACH36 violations
F
SCOTTS VALLEY3 violations
C
TAHOE CITY0 violations
A
BIG BEAR CITY0 violations
A
DIXON0 violations
A
FORTUNA2 violations
B
MAYWOOD0 violations
A
NEWMAN2 violations
B
HILLSBOROUGH0 violations
A
SIGNAL HILL10 violations
D
EXETER3 violations
C
CALIMESA0 violations
A
HEALDSBURG0 violations
A
OJAI6 violations
D
MENDOTA0 violations
A
EDWARDS AFB2 violations
B
CLOVERDALE1 violation
B
SIERRA MADRE0 violations
A
FARMERSVILLE1 violation
B
SHASTA LAKE0 violations
A
THREE RIVERS29 violations
F
RIO VISTA0 violations
A
WATERFORD0 violations
A
WILLITS1 violation
B
ROYAL OAKS38 violations
F
LA CANADA FLINTRIDGE0 violations
A
SANTA YSABEL2 violations
B
GUERNEVILLE0 violations
A
BISHOP3 violations
C
WINTON1 violation
B
GEORGETOWN0 violations
A
ORANGE COVE1 violation
B
BERMUDA DUNES0 violations
A
FORESTVILLE0 violations
A
LA CANADA0 violations
A
LIVE OAK0 violations
A
HURON3 violations
C
NEEDLES0 violations
A
PARADISE0 violations
A
MAMMOTH LAKES0 violations
A
GUADALUPE0 violations
A
PISMO BEACH6 violations
D
FIREBAUGH4 violations
C
CORNING3 violations
C
GONZALES32 violations
F
SANTA YNEZ0 violations
A
SEBASTOPOL1 violation
B
OROSI0 violations
A
ORLAND0 violations
A
LANCASTER117 violations
F
YREKA2 violations
B
EARLIMART1 violation
B
TEMPLETON0 violations
A
FORT BRAGG3 violations
C
CASTROVILLE21 violations
F
LAKE ALMANOR1 violation
B
JULIAN8 violations
D
LAKE ARROWHEAD0 violations
A
KIRKWOOD0 violations
A
WOODLAKE0 violations
A
DELHI0 violations
A
WEST COVINA0 violations
A
LOS OSOS0 violations
A
COTATI0 violations
A
OCEANO0 violations
A
HUGHSON36 violations
F
REPRESA1 violation
B
FOWLER0 violations
A
DOS PALOS12 violations
F
ESCALON0 violations
A
TAHOE VISTA0 violations
A
SOLVANG0 violations
A
GRIDLEY1 violation
B
COTTONWOOD3 violations
C
WINTERS0 violations
A
CASTAIC0 violations
A
HEBER0 violations
A
KELSEYVILLE0 violations
A
FORESTHILL1 violation
B
JACKSON2 violations
B
BEALE AFB0 violations
A
NUEVO0 violations
A
JOSHUA TREE0 violations
A
CHINA LAKE0 violations
A
COLUSA0 violations
A
HOLTVILLE1 violation
B
HELENDALE0 violations
A
ST. HELENA6 violations
D
IDYLLWILD2 violations
B
LOS ALTOS HILLS0 violations
A
HIDDEN VALLEY LAKE0 violations
A
GUSTINE1 violation
B
CUTLER13 violations
F
COARSEGOLD20 violations
F
MONTARA0 violations
A
CALISTOGA6 violations
D
RANCHO MURIETA0 violations
A
MEADOW VISTA0 violations
A
KEYES0 violations
A
VILLA PARK0 violations
A
RUNNING SPRINGS2 violations
B
WEED2 violations
B
WILLIAMS0 violations
A
JUNE LAKE4 violations
C
CAMBRIA2 violations
B
ARNOLD0 violations
A
HILMAR14 violations
F
LA HABRA HEIGHTS0 violations
A
BUELLTON3 violations
C
CARNELIAN BAY1 violation
B
DENAIR0 violations
A
BRISBANE0 violations
A
FRAZIER PARK3 violations
C
MURPHYS4 violations
C
MOJAVE22 violations
F
MT. SHASTA3 violations
C
CAYUCOS0 violations
A
VISALIA33 violations
F
IVANHOE1 violation
B
LA GRANGE1 violation
B
COBB2 violations
B
PLANADA1 violation
B
PORTOLA13 violations
F
ARMONA0 violations
A
WHEATLAND0 violations
A
ANGELS CAMP1 violation
B
JAMESTOWN9 violations
D
WEAVERVILLE0 violations
A
SAN JOAQUIN0 violations
A
WILDOMAR0 violations
A
LOCKEFORD0 violations
A
QUINCY0 violations
A
DEL MAR0 violations
A
AVALON0 violations
A
YOUNTVILLE1 violation
B
IONE0 violations
A
APTOS0 violations
A
MARIPOSA1 violation
B
SAN FRANCISCO6 violations
D
LOS GATOS14 violations
F
CHESTER3 violations
C
ALTURAS2 violations
B
ESPARTO0 violations
A
TWAIN HARTE2 violations
B
GROVELAND3 violations
C
NEVADA CITY2 violations
B
BORREGO SPRINGS0 violations
A
STRATHMORE8 violations
D
ANGWIN5 violations
C
MORENO VALLEY0 violations
A
AROMAS2 violations
B
RIO DELL0 violations
A
LUCERNE VALLEY30 violations
F
AVILA BEACH2 violations
B
BURNEY0 violations
A
SEASIDE0 violations
A
SHASTA0 violations
A
BLOOMINGTON0 violations
A
BORON0 violations
A
LITTLEROCK0 violations
A
MI WUK VILLAGE1 violation
B
TALMAGE3 violations
C
GREEN VALLEY LAKE1 violation
B
INDEPENDENCE2 violations
B
NICE0 violations
A
TWIN PEAKS0 violations
A
SUTTER0 violations
A
PINE VALLEY8 violations
D
RIVERDALE0 violations
A
ARBUCKLE0 violations
A
BROWNSVILLE0 violations
A
PIXLEY4 violations
C
FORT HUNTER LIGGETT0 violations
A
SPRINGVILLE23 violations
F
VALLEY SPRINGS0 violations
A
CARUTHERS10 violations
D
TERRA BELLA0 violations
A
SKYFOREST0 violations
A
SAN MIGUEL0 violations
A
GUALALA0 violations
A
SMITH RIVER0 violations
A
PAUMA VALLEY52 violations
F
TIPTON8 violations
D
SAN JUAN BAUTISTA3 violations
C
BOLINAS0 violations
A
CEDARPINES PARK0 violations
A
LOST HILLS0 violations
A
CLEARLAKE OAK4 violations
C
HAYFORK0 violations
A
BRADLEY17 violations
F
SANTA NELLA0 violations
A
PINE GROVE1 violation
B
WESTWOOD0 violations
A
WESTMORLAND3 violations
C
PINE MOUNTAIN CLUB0 violations
A
ALPINE MEADOWS0 violations
A
POPLAR0 violations
A
GARBERVILLE1 violation
B
BRIDGEPORT1 violation
B
HERLONG0 violations
A
MIDDLETOWN4 violations
C
BIGGS1 violation
B
BIG SUR0 violations
A
BIG PINE1 violation
B
CABAZON0 violations
A
GERBER3 violations
C
MIDWAY CITY0 violations
A
CARMEL1 violation
B
DUNSMUIR2 violations
B
ARROWBEAR LAKE0 violations
A
YOSEMITE NP0 violations
A
MT. BALDY0 violations
A
TRONA0 violations
A
ELIZABETH LAKE0 violations
A
CLAREMONT0 violations
A
LINDEN0 violations
A
COLD SPRINGS0 violations
A
TRINIDAD0 violations
A
LE GRAND8 violations
D
BLAIRSDEN1 violation
B
KERNVILLE8 violations
D
SEELEY1 violation
B
YORBA LINDA0 violations
A
BIOLA0 violations
A
RICHGROVE2 violations
B
INYOKERN3 violations
C
OAKHURST46 violations
F
DURHAM0 violations
A
LOWER LAKE0 violations
A
DEVORE0 violations
A
WELDON85 violations
F
POINT REYES STATION0 violations
A
LOS MOLINOS1 violation
B
SHINGLETOWN1 violation
B
FALL RIVER MILLS0 violations
A
BUTTONWILLOW0 violations
A
LOS ALAMOS0 violations
A
ANGELUS OAKS2 violations
B
HUME0 violations
A
DOWNIEVILLE3 violations
C
DEL REY0 violations
A
TULELAKE2 violations
B
GRAEAGLE1 violation
B
NORTH EDWARDS39 violations
F
FOREST FALLS2 violations
B
INVERNESS0 violations
A
LA HONDA8 violations
D
PLYMOUTH2 violations
B
GRIZZLY FLATS0 violations
A
BETHEL ISLAND2 violations
B
HYDESVILLE1 violation
B
BARSTOW29 violations
F
BODEGA BAY0 violations
A
MCCLOUD2 violations
B
LATON1 violation
B
FELTON13 violations
F
WILLOW CREEK1 violation
B
PINECREST1 violation
B
GREEN VALLEY1 violation
B
MONTAGUE1 violation
B
KETTLEMAN CITY8 violations
D
REDWAY0 violations
A
TRINITY CENTER3 violations
C
MOUNT HERMON1 violation
B
MAXWELL0 violations
A
BLUE LAKE0 violations
A
CAMP MEEKER0 violations
A
OLYMPIC VALLEY0 violations
A
SEA RANCH1 violation
B
DILLON BEACH4 violations
C
LAYTONVILLE0 violations
A
UPPER LAKE1 violation
B
HAPPY CAMP1 violation
B
PLATINA1 violation
B
SARATOGA0 violations
A
PAICINES2 violations
B
SULTANA8 violations
D
BAKER1 violation
B
LOYALTON0 violations
A
GREENVILLE1 violation
B
NORTH HIGHLANDS0 violations
A
SAN MARTIN0 violations
A
OCCIDENTAL0 violations
A
WHITETHORN0 violations
A
FRIANT0 violations
A
SCOTIA1 violation
B
DORRIS1 violation
B
MADISON1 violation
B
ALPAUGH2 violations
B
LLANO3 violations
C
SHAVER LAKE0 violations
A
LAKE ARROWHEAD CA 923520 violations
A
CLIO1 violation
B
LOLETA0 violations
A
TRANQUILLITY2 violations
B
MONTEREY3 violations
C
ELDORADO HILLS0 violations
A
DAGGETT20 violations
F
LA SELVA BEACH0 violations
A
ANZA16 violations
F
RENO0 violations
A
LEE VINING0 violations
A
LAKEHEAD2 violations
B
ORLEANS5 violations
C
ETNA0 violations
A
NEW CUYAMA0 violations
A
FORT JONES0 violations
A
SODA SPRINGS2 violations
B
SALYER3 violations
C
CLAYTON0 violations
A
JUNCTION CITY2 violations
B
CAMPO1 violation
B
SAUGUS0 violations
A
GASQUET0 violations
A
KLAMATH4 violations
C
MINERAL1 violation
B
MOUNTAIN PASS1 violation
B
BEAR VALLEY16 violations
F
ISLETON3 violations
C
DUCOR1 violation
B
CEDARVILLE0 violations
A
MOUNT BALDY0 violations
A
LAKE ISABELLA37 violations
F
STINSON BEACH0 violations
A
SAN ARDO1 violation
B
RIVER PINES1 violation
B
CROWS LANDING2 violations
B
JACUMBA0 violations
A
MOUNTAIN CENTER1 violation
B
CHIRIACO SUMMIT0 violations
A
PALO VERDE6 violations
D
CROWLEY LAKE1 violation
B
GRIMES16 violations
F
MORGAN HILL4 violations
C
CARMEL VALLEY0 violations
A
LUDLOW35 violations
F
CITY OF COLUSA0 violations
A
MIRANDA0 violations
A
SKY FOREST0 violations
A
TEHAMA0 violations
A
LYTLE CREEK0 violations
A
SHINGLETOOWN1 violation
B
BODFISH3 violations
C
SAN SIMEON4 violations
C
MENDOCINO8 violations
D
POINT ARENA0 violations
A
MENTONE1 violation
B
BIEBER0 violations
A
WEOTT1 violation
B
WILTON0 violations
A
EDISON16 violations
F
WINTERHAVEN3 violations
C
SAN JUAN CAPISTRANO0 violations
A
WOFFORD HEIGHTS34 violations
F
SAN LEANDRO0 violations
A
TAMPA0 violations
A
DEATH VALLEY0 violations
A
PAYNES CREEK1 violation
B
MUIR BEACH1 violation
B
FERNDALE0 violations
A
PENN VALLEY1 violation
B
ORICK0 violations
A
NORTH FORK41 violations
F
PRINCETON0 violations
A
EUGENE0 violations
A
ELK1 violation
B
WESTPORT0 violations
A
MOSS LANDING0 violations
A
CAZADERO0 violations
A
SCOTTSDALE1 violation
B
TRES PINOS0 violations
A
DESERT CENTER0 violations
A
PRATHER0 violations
A
SANTA CLARITA3 violations
C
BLUE JAY0 violations
A
MYERS FLAT1 violation
B
WASHINGTON1 violation
B
PESCADERO3 violations
C
CHANDLER0 violations
A
THERMAL4 violations
C
LARKSPUR0 violations
A
SAN LUCAS3 violations
C
JOHANESBURG11 violations
F
OCOTILLO2 violations
B
PENNGROVE0 violations
A
PALO CEDRO1 violation
B
PHILLIPSVILLE1 violation
B
GREENBRAE0 violations
A
GLENHAVEN0 violations
A
KING CITY0 violations
A
HERCULES2 violations
B
BERRY CREEK0 violations
A
GEYSERVILLE0 violations
A
GRENADA0 violations
A
SNELLING0 violations
A
MOUNT HAMILTON0 violations
A
STANDARD0 violations
A
VALENCIA34 violations
F
HORNBROOK5 violations
C
LOS OLIVOS0 violations
A
ORINDA0 violations
A
BOUNTIFUL0 violations
A
JENNER0 violations
A
FARMINGTON0 violations
A
KENWOOD0 violations
A
WARNER SPRINGS0 violations
A
FOREST RANCH5 violations
C
MANCHESTER1 violation
B
ARTOIS0 violations
A
WALNUT GROVE9 violations
D
KORBEL0 violations
A
APPLEGATE0 violations
A
COLFAX0 violations
A
WEST HOLLYHOOD1 violation
B
BILLINGS1 violation
B
FULTON0 violations
A
SHOSHONE3 violations
C
CAMPTONVILLE0 violations
A
BALLICO1 violation
B
CASITAS SPRINGS1 violation
B
PASKENTA45 violations
F
CASMALIA0 violations
A
PRUNEDALE15 violations
F
CAMAS1 violation
B
ELK CREEK0 violations
A
CHERRY VALLEY0 violations
A
NEWBERRY SPRINGS10 violations
D
RANCHO MISSION VIEJO0 violations
A
DENVER0 violations
A
LOS ALTOS0 violations
A
BEDFORD0 violations
A
SIERRAVILLE0 violations
A
ROMOLAND8 violations
D
SOULSBYVILLE1 violation
B
BONITA0 violations
A
YERMO0 violations
A
DANA POINT0 violations
A
MORAGA14 violations
F
CALPINE0 violations
A
PRESCOTT0 violations
A
LOMA MAR0 violations
A
EL DORADO HILLS0 violations
A
COURTLAND2 violations
B
MARKLEEVILLE0 violations
A
LOS MOLIINOS0 violations
A
KNIGHTS FERRY0 violations
A
ELVERTA10 violations
D
ALPINE6 violations
D
BADGER2 violations
B
FREEDOM0 violations
A
AUBERRY0 violations
A
SAN RAMON11 violations
F
OREGON HOUSE1 violation
B
SILVERDALE1 violation
B
SAN MATEO3 violations
C
TUOLUMNE0 violations
A
ACAMPO0 violations
A
KYBURZ16 violations
F
DANVILLE0 violations
A
TOMS PLACE0 violations
A
RICHARDSON SPRINGS0 violations
A
CORRALITOS0 violations
A
BETHEL ISLAND RD0 violations
A
ALAMO0 violations
A
SAN YSABEL0 violations
A
HOPEWELL1 violation
B
GAVIOTA0 violations
A
PLUMAS LAKE1 violation
B
LOCKWOOD0 violations
A
CASSEL0 violations
A
TRINTY CENTER0 violations
A
GREELEY HILL1 violation
B
BULVERDE34 violations
F
EMIGRANT GAP0 violations
A
AGUA DULCE9 violations
D
HENDERSON1 violation
B
RANCHO SANTE FE0 violations
A
CANBY0 violations
A
COLUMBIA0 violations
A
GRATON0 violations
A
BURNT RANCH1 violation
B
LAKE HUGHES29 violations
F
MT. HAMILTON0 violations
A
HALCYON1 violation
B
FLORISTON0 violations
A
BELL CANYON2 violations
B
LEMON COVE21 violations
F
HELM1 violation
B
SAN MARINO0 violations
A
LAKE OSWEGO0 violations
A
VOLCANO0 violations
A
HONOLULU1 violation
B
GUATAY24 violations
F
FIDDLETOWN2 violations
B
BOONVILLE0 violations
A
MT LAGUNA0 violations
A
GLENNVILLE0 violations
A
MARINA DEL RAY0 violations
A
WEST POINT1 violation
B
FIVE POINTS0 violations
A
CANYON0 violations
A
LONG BARN0 violations
A
KEENE0 violations
A
OLD STATION1 violation
B
CORRAL DE TIERRA0 violations
A
NORTH SAN JUAN0 violations
A
ZAMORA2 violations
B
CLIPPER MILLS0 violations
A
REDWOOD VALLEY0 violations
A
VALLEY FORD26 violations
F
BELLA VISTA, CA0 violations
A
COLEVILLE5 violations
C
LOOMIS0 violations
A
LAKE OF THE WOODS0 violations
A
ALLEGHANY0 violations
A
REDMOND0 violations
A
DUNCANS MILLS0 violations
A
CEDAR GLEN1 violation
B
WEST DES MOINES1 violation
B
BODEGA0 violations
A
MACDOEL1 violation
B
WOODBRIDGE0 violations
A
BUTTE CITY0 violations
A
AGUANGA0 violations
A
SOMERSET0 violations
A
BIG CREEK1 violation
B
PALOS VERDES ESTATES1 violation
B
CALLAHAN0 violations
A
MURRIETA14 violations
F
GORMAN0 violations
A
LONE PINE0 violations
A
LITTLE VALLEY1 violation
B
COYOTE0 violations
A
MUPHYS1 violation
B
ORCUTT1 violation
B
SUISUN CITY0 violations
A
VALYERMO1 violation
B
MATHER2 violations
B
VINA0 violations
A
THE VILLAGES0 violations
A
BRIDGEVILLE1 violation
B
DOBBINS0 violations
A
GLEN ELLEN0 violations
A
ALDERPOINT0 violations
A
TWAIN2 violations
B
ALBION0 violations
A
BUTTE MEADOWS1 violation
B
FORSEST RANCH1 violation
B
BEN LOMOND0 violations
A
VINTON1 violation
B
PLEASANT HILL0 violations
A
MIRAMONTE0 violations
A
CASTRO VALLEY1 violation
B
ROCKLIN1 violation
B
MINDEN0 violations
A
WALNUT CREEK0 violations
A
CHUALAR1 violation
B
PLACIDA0 violations
A
WISHON5 violations
C
DARWIN4 violations
C
PIEDRA0 violations
A
NICASIO2 violations
B
TOMALES0 violations
A
AGOURA HILLS1 violation
B
SARATOSA0 violations
A
CANTIL1 violation
B
RAILROAD FLAT0 violations
A
RESCUE0 violations
A
NEWCASTLE0 violations
A
WOODY5 violations
C
HICKMAN0 violations
A
FRENCH CAMP23 violations
F
TUJUNGA0 violations
A
MILFORD0 violations
A
SELMA1 violation
B
FAWNSKIN2 violations
B
From the Blog
Photo by Bluewater Sweden on Unsplash
Mar 22, 2026 · 6 min read
How to Read Your Annual Water Quality Report (CCR)
Your water utility is legally required to send you a Consumer Confidence Report every year. Here's how to actually understand it.
Photo by Louis Hansel on Unsplash
Mar 5, 2026 · 9 min read
Lead in Tap Water: The Complete 2026 Guide
Lead enters drinking water through old pipes and fixtures. Here's how to identify your risk and what to do about it.
Photo by Eduardo Casajús Gorostiaga on Unsplash
Feb 18, 2026 · 5 min read
What Is an EPA Maximum Contaminant Level (MCL)?
MCLs are the foundation of US drinking water safety. Here's how they're set and what they mean for your tap.
Photo by Naja Bertolt Jensen on Unsplash
