Arizona: drinking water & radon

Arizona has 947 active community water systems. Since 2016, 438 reported health-based violations; 10 had a latest lead result above 15 ppb; 24 measured PFOA or PFOS at or above 4 ppt.

Radon zones in Arizona

tap a county

Zone 1 · highestZone 2 · moderateZone 3 · low

All ZIP codes in Arizona

522 ZIP codes.

85001Phoenix85002Phoenix85003Phoenix85004Phoenix85005Phoenix85006Phoenix85007Phoenix85008Phoenix85009Phoenix85010Phoenix85011Phoenix85012Phoenix85013Phoenix85014Phoenix85015Phoenix85016Phoenix85017Phoenix85018Phoenix85019Phoenix85020Phoenix85021Phoenix85022Phoenix85023Phoenix85024Phoenix85026Phoenix85027Phoenix85028Phoenix85029Phoenix85030Phoenix85031Phoenix85032Phoenix85033Phoenix85034Phoenix85035Phoenix85036Phoenix85037Phoenix85038Phoenix85039Phoenix85040Phoenix85041Phoenix85042Phoenix85043Phoenix85044Phoenix85045Phoenix85046Phoenix85048Phoenix85050Phoenix85051Phoenix85053Phoenix85054Phoenix85060Phoenix85061Phoenix85062Phoenix85063Phoenix85064Phoenix85065Phoenix85066Phoenix85067Phoenix85068Phoenix85069Phoenix85070Phoenix85071Phoenix85072Phoenix85073Phoenix85074Phoenix85075Phoenix85076Phoenix85078Phoenix85079Phoenix85080Phoenix85082Phoenix85083Phoenix85085Phoenix85086Phoenix85087New River85117Apache Junction85118Gold Canyon85119Apache Junction85120Apache Junction85121Bapchule85122Casa Grande85123Arizona City85127Chandler Heights85128Coolidge85130Casa Grande85131Eloy85132Florence85135Hayden85137Kearny85138Maricopa85139Maricopa85140San Tan Valley85141Picacho85142Queen Creek85143San Tan Valley85145Red Rock85147Sacaton85172Stanfield85173Superior85178Apache Junction85190Tortilla Flat85191Valley Farms85192Winkelman85193Casa Grande85194Casa Grande85201Mesa85202Mesa85203Mesa85204Mesa85205Mesa85206Mesa85207Mesa85208Mesa85209Mesa85210Mesa85211Mesa85212Mesa85213Mesa85214Mesa85215Mesa85216Mesa85224Chandler85225Chandler85226Chandler85233Gilbert85234Gilbert85236Higley85244Chandler85246Chandler85248Chandler85249Chandler85250Scottsdale85251Scottsdale85252Scottsdale85253Paradise Valley85254Scottsdale85255Scottsdale85256Scottsdale85257Scottsdale85258Scottsdale85259Scottsdale85260Scottsdale85261Scottsdale85262Scottsdale85263Rio Verde85264Fort Mcdowell85266Scottsdale85267Scottsdale85268Fountain Hills85269Fountain Hills85271Scottsdale85274Mesa85275Mesa85277Mesa85280Tempe85281Tempe85282Tempe85283Tempe85284Tempe85285Tempe85286Chandler85288Tempe85295Gilbert85296Gilbert85297Gilbert85298Gilbert85299Gilbert85301Glendale85302Glendale85303Glendale85304Glendale85305Glendale85306Glendale85307Glendale85308Glendale85309Luke Air Force Base85310Glendale85311Glendale85312Glendale85318Glendale85320Aguila85321Ajo85322Arlington85323Avondale85324Black Canyon City85325Bouse85326Buckeye85327Cave Creek85328Cibola85329Cashion85331Cave Creek85332Congress85333Dateland85334Ehrenberg85335El Mirage85336Gadsden85337Gila Bend85338Goodyear85339Laveen85340Litchfield Park85341Lukeville85342Morristown85343Palo Verde85344Parker85345Peoria85346Quartzsite85347Roll85348Salome85349San Luis85350Somerton85351Sun City85352Tacna85353Tolleson85354Tonopah85355Waddell85356Wellton85357Wenden85358Wickenburg85359Quartzsite85360Wikieup85361Wittmann85362Yarnell85363Youngtown85364Yuma85365Yuma85366Yuma85367Yuma85369Yuma85371Poston85372Sun City85373Sun City85374Surprise85375Sun City West85376Sun City West85377Carefree85378Surprise85379Surprise85380Peoria85381Peoria85382Peoria85383Peoria85385Peoria85387Surprise85388Surprise85390Wickenburg85392Avondale85395Goodyear85396Buckeye85501Globe85502Globe85530Bylas85531Central85532Claypool85533Clifton85534Duncan85535Eden85536Fort Thomas85539Miami85540Morenci85541Payson85542Peridot85543Pima85544Pine85545Roosevelt85546Safford85547Payson85548Safford85550San Carlos85551Solomon85552Thatcher85553Tonto Basin85554Young85601Arivaca85602Benson85603Bisbee85605Bowie85606Cochise85607Douglas85608Douglas85609Dragoon85610Elfrida85611Elgin85613Fort Huachuca85614Green Valley85615Hereford85616Huachuca City85617Mc Neal85618Mammoth85619Mount Lemmon85620Naco85621Nogales85622Green Valley85623Oracle85624Patagonia85625Pearce85626Pirtleville85627Pomerene85628Nogales85629Sahuarita85630Saint David85631San Manuel85632San Simon85633Sasabe85634Sells85635Sierra Vista85636Sierra Vista85637Sonoita85638Tombstone85639Topawa85640Tumacacori85641Vail85643Willcox85644Willcox85645Amado85646Tubac85648Rio Rico85650Sierra Vista85652Cortaro85653Marana85654Rillito85655Douglas85658Marana85670Fort Huachuca85671Sierra Vista85701Tucson85702Tucson85703Tucson85704Tucson85705Tucson85706Tucson85707Tucson85708Tucson85709Tucson85710Tucson85711Tucson85712Tucson85713Tucson85714Tucson85715Tucson85716Tucson85717Tucson85718Tucson85719Tucson85720Tucson85722Tucson85723Tucson85724Tucson85725Tucson85726Tucson85728Tucson85730Tucson85731Tucson85732Tucson85733Tucson85734Tucson85735Tucson85736Tucson85737Tucson85738Catalina85739Tucson85740Tucson85741Tucson85742Tucson85743Tucson85744Tucson85745Tucson85746Tucson85747Tucson85748Tucson85749Tucson85750Tucson85751Tucson85752Tucson85754Tucson85755Tucson85756Tucson85757Tucson85775Tucson85901Show Low85902Show Low85911Cibecue85912White Mountain Lake85920Alpine85922Blue85923Clay Springs85924Concho85925Eagar85926Fort Apache85927Greer85928Heber85929Lakeside85930Mcnary85931Forest Lakes85932Nutrioso85933Overgaard85934Pinedale85935Pinetop85936Saint Johns85937Snowflake85938Springerville85939Taylor85940Vernon85941Whiteriver85942Woodruff86001Flagstaff86002Flagstaff86003Flagstaff86004Flagstaff86005Flagstaff86015Bellemont86016Gray Mountain86017Munds Park86018Parks86020Cameron86021Colorado City86022Fredonia86023Grand Canyon86024Happy Jack86025Holbrook86028Petrified Forest Natl Pk86029Sun Valley86030Hotevilla86031Indian Wells86032Joseph City86033Kayenta86034Keams Canyon86035Leupp86036Marble Canyon86038Mormon Lake86039Kykotsmovi Village86040Page86042Polacca86043Second Mesa86044Tonalea86045Tuba City86046Williams86047Winslow86052North Rim86053Kaibeto86054Shonto86301Prescott86302Prescott86303Prescott86304Prescott86305Prescott86312Prescott Valley86313Prescott86314Prescott Valley86315Prescott Valley86320Ash Fork86321Bagdad86322Camp Verde86323Chino Valley86324Clarkdale86325Cornville86326Cottonwood86327Dewey86329Humboldt86331Jerome86332Kirkland86333Mayer86334Paulden86335Rimrock86336Sedona86337Seligman86338Skull Valley86339Sedona86340Sedona86341Sedona86342Lake Montezuma86343Crown King86351Sedona86401Kingman86402Kingman86403Lake Havasu City86404Lake Havasu City86405Lake Havasu City86406Lake Havasu City86409Kingman86411Hackberry86412Hualapai86413Golden Valley86426Fort Mohave86427Fort Mohave86429Bullhead City86430Bullhead City86431Chloride86432Littlefield86433Oatman86434Peach Springs86435Supai86436Topock86437Valentine86438Yucca86439Bullhead City86440Mohave Valley86441Dolan Springs86442Bullhead City86443Temple Bar Marina86444Meadview86445Willow Beach86446Mohave Valley86502Chambers86503Chinle86504Fort Defiance86505Ganado86506Houck86507Lukachukai86508Lupton86510Pinon86511Saint Michaels86512Sanders86514Teec Nos Pos86515Window Rock86520Blue Gap86535Dennehotso86538Many Farms86540Nazlini86544Red Valley86545Rock Point86547Round Rock86556Tsaile

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions

How many water systems in Arizona have violations?

438 of 947 active community water systems in Arizona reported at least one health-based violation since 2016 (EPA SDWIS).

What is the radon risk in Arizona?

No ZIP codes are in EPA radon zone 1, 522 in zone 2 and 0 in zone 3. EPA recommends testing every home.