Arizona tap water, by utility.

181 utilities with a full report, serving 7 million people as they report it. Regulated PFAS turned up at 45 of them.

Find a Arizona utility, city or county

The 100 largest, by people served

Arizona utilities, The 100 largest, by people served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
City of Phoenix	Phoenix	1,695,000	PFBS	1
City of Tucson	Tucson	732,906	None found	0
City of Mesa	Mesa	466,000	PFHxS, PFBS	0
Town of Gilbert	Gilbert	247,600	PFOA, PFOS, PFBS	3
City of Chandler	Chandler	247,328	PFBS	1
City of Scottsdale	Scottsdale	241,361	PFBS	0
City of Glendale	Glendale	234,766	PFBS	0
City of Peoria	Peoria	187,676	PFOA, PFHxS, PFBS	1
City of Tempe	Tempe	165,000	PFOA, PFOS, PFHxS, PFBS	2
Arizona Water Co - Pinal Valley	Casa Grande	134,432	PFHxS, PFBS	0
Epcor - Agua Fria	Surprise	127,718	None found	2
City of Yuma	Yuma	103,264	None found	23
City of Avondale	Avondale	96,130	PFOA, PFOS, PFHxS, PFBS	0
Town of Queen Creek	Queen Creek	95,502	None found	0
Epcor - San Tan	Johnson Ranch	87,435	None found	2
Gw Santa Cruz Water Co	Maricopa	84,000	None found	1
City of Flagstaff	Flagstaff	79,796	None found	0
Arizona Water Co - Apache Junction	Apache Junction	62,055	None found	0
Town of Prescott Valley	Prescott Valley	57,048	None found	0
Liberty Water Lpsco	Litchfield Park	55,810	PFOA, PFOS, PFHxS, PFBS	1
City of Lake Havasu	Lake Havasu City	54,610	PFBS	0
Goodyear Water Department	Goodyear	50,001	PFOA, PFOS, PFHxS, PFNA, PFBS	0
Metropolitan Dwid	Tucson	45,570	PFHxS, PFBS	0
Kingman Municipal Water	Kingman	45,000	None found	0
Oro Valley Water Utility	Oro Valley	42,316	None found	0
City of Prescott	Prescott	42,217	PFOA, PFOS, PFHxS, PFBS	1
Surprise City of - Mountain Vista	Surprise	40,007	None found	0
City of El Mirage	El Mirage	39,884	PFOA, PFBS	0
City of San Luis	San Luis	39,705	None found	3
Epcor - Sun City	Sun City	38,016	None found	0
Bullhead City Mohave	Bullhead City	36,330	PFOA, PFOS, PFHxS, PFBS	2
Foothills Water and Sewer LLC	Yuma	32,425	None found	2
City of Buckeye - Valencia Town Division	Buckeye	30,377	None found	0
Epcor - Chaparral City	Fountain Hills	26,026	None found	1
Epcor - Sun City West	Sun City West	25,796	None found	0
Bermuda Water Company Inc	Bullhead City	25,000	PFBS	0
Desert Oasis	Surprise	23,963	None found	0
Epcor - Anthem	Anthem	23,826	None found	1
Gric DPW Wild Horse Pass	Wildhorse Pass Casino, St. Johns Komatke	22,795	None found	2
Community WC of Green Valley	Green Valley	22,085	None found	0
City of Nogales	Nogales	22,000	None found	3
Salt River Public Works	Salt River Indian Community	20,951	None found	1
City of Safford	Safford	20,600	PFBS	2
Bella Vista City Water System	Sierra Vista	20,045	None found	0
Pima Utilities	Chandler	20,000	None found	2
Arizona Water Co - White Tanks	White Tanks	18,858	None found	0
USAF Davis Monthan AFB	Tucson	18,640	None found	0
Sahuarita Water Company	Sahuarita	18,178	None found	0
Lago del Oro Water Company	Catalina	18,132	None found	0
Liberty Water Rio Rico	Rio Rico	17,960	PFOA, PFOS, PFHxS, PFBS	0
Town of Payson	Payson	17,682	PFOA, PFOS, PFHxS, PFBS	0
Vail Water Company	Tucson	17,500	None found	0
City of Show Low	Show Low	17,139	None found	1
City of Douglas	Douglas	16,656	None found	0
Grand Canyon National Park	Grand Canyon	16,590	None found	6
Flowing Wells Irrigation District	Tucson	16,000	PFOA, PFOS, PFHxS, PFBS	1
Florence Water Company	Florence	15,900	PFHxS, PFBS	1
City of Buckeye Sonora - Sundance	Town of Buckeye - Sono	15,783	None found	0
Apache Junction Water District	Apache Junction	15,610	None found	5
US Army Fort Huachuca	Fort Huachuca	15,603	PFOA, PFOS, PFHxS	1
Wmatua Miner Flat	Whiteriver	15,570	None found	12
Farmington Rural - Shiprock - Beclabito Ntua	Upper Fruitland, Nenahnezad, San Juan, N	15,233	None found	2
Marana Municipal - Marana	Marana	15,162	PFOA, PFOS, PFHxS, PFBS	0
Epcor - North East Agua Fria	Phoenix	14,723	None found	0
City of Somerton	Somerton	14,197	None found	0
Epcor - Paradise Valley/Scottsdale	Paradise Valley	14,107	None found	0
Arizona Water Co - Overgaard	Heber	13,797	None found	0
Fort Defiance - Window Rock - St Michaels Ntua	Fort Defiance, Window Rock, St. Michaels	12,869	None found	7
Pueblo del Sol Water Company	Sierra Vista	12,804	None found	8
Arizona Water Co - Lakeside	Show Low	12,191	PFBS	0
Arizona Water Co - Sedona	Sedona	12,104	PFOA, PFOS, PFHxS, PFBS	1
AK - Chin Village	AK - Chin Village	11,646	None found	2
Cottonwood Municipal Water Cw1	Cottonwood	11,023	None found	4
Arizona Water Co - Oracle	Oracle	10,585	None found	0
Epcor - San Tan Anthem	Johnson Ranch	10,362	PFOA, PFBS	0
Festival Ranch	Buckeye	10,313	None found	0
Beardsley Water Company 1	Surprise	10,263	None found	0
Tucson Water Corona de Tucson	Tucson	10,217	None found	0
City of Buckeye Tartesso Water System	Buckeye	10,123	Not sampled	0
City of Winslow	Winslow	9,789	None found	0
City of Tolleson	Tolleson	9,300	PFBS	0
Arizona Water Co - Sierra Vista	Sierra Vista	9,175	None found	1
Doney Park Water	Flagstaff	8,996	None found	1
Cca - Eloy Complex	Eloy	8,852	None found	0
Arizona Water Co - Bisbee	Bisbee	8,707	PFOA, PFBS	2
Green Valley Dwid	Green Valley	8,687	None found	0
Arizona Water Co - Miami Claypool	Miami	8,656	PFHxS, PFBS	1
Scua Upper Seven Mile	San Carlos	8,478	PFBS	30
Chinle - Many Farms - del Muerto Ntua	Chinle, Many Farms, del Muerto	8,458	None found	0
USAF Luke Air Force Base	Litchfield Park	8,440	PFOA, PFOS, PFHxS, PFBS	3
USMC Yuma Main System	Yuma	8,353	PFHxS	2
Arizona Water Co - Pinewood	Munds Park	8,089	None found	0
Pine Strawberry Wid	Pine	8,013	None found	0
City of Eloy	Eloy	7,903	None found	2
City of Globe	Globe	7,536	PFOS, PFHxS, PFBS	1
City of Page	Page	7,420	None found	2
Big Park Water Company	Sedona	7,392	PFOA, PFOS, PFHxS, PFBS	7
Fort McDowell Community	Fountain Hills	7,260	None found	4
City of Buckeye	Buckeye	7,008	None found	0
Quail Creek Water Company	Green Valley	6,812	None found	0

Utilities EPA sampled under UCMR 5, plus any other community system serving 3,300 people or more. Smaller systems appear in ZIP code results. People served is what each utility reports to EPA. Data: EPA SDWIS 2026 Q2 and UCMR 5.

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Arizona tap water, by utility.

The 100 largest, by people served

Where to go next

Read your utility’s own report

Every contaminant

Filters, checked