All water systems in Arizona
1,713 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Adoc Eyman Unit Florence · Pinal County |
3,969 | 8 | 2 | |
|
Golden Valley Improvement District Kingman · Mohave County |
3,950 | 2 | 1 | |
|
Ganado-Burnside-Cornfield-Steamboat Ntua Ganado, Cornfield, Steamboat and 1 more · County |
3,947 | 2 | 1 | |
|
Graham County Utilities Pima Pima · Graham County |
3,899 | 3 | 1 | |
|
Polacca First Mesa Consolidated Villages · County |
3,890 | 6 | 4 | |
|
Kayenta Ntua Kayenta · County |
3,844 | 2 | 1 | |
|
Spanish Trail Water Company Tucson · Pima County |
3,822 | 3 | 0 | |
|
Lone Butte Industrial Lone Butte Industrial · County |
3,810 | 0 | 0 | |
|
Carefree Water Company Carefree · Maricopa County |
3,588 | 3 | 0 | |
|
Epcor Willow Valley/king Street Mohave Valley · Mohave County |
3,566 | 2 | 0 | |
|
Arizona Water CO Pinetop Lakes Pinetop · Navajo County |
3,558 | 0 | 0 | |
|
Arizona Water CO Rimrock Rimrock · Yavapai County |
3,532 | 1 | 0 | |
|
AZ State Prison Geo Group Kingman Kingman · Mohave County |
3,500 | 3 | 1 | |
|
Kachina Village Dwid Flagstaff · Coconino County |
3,500 | 1 | 0 | |
|
ST Johns City of Saint Johns · Apache County |
3,500 | 5 | 1 | |
|
Colorado River Regional Water System County |
3,476 | 6 | 0 | |
|
Town of Parker County |
3,360 | 2 | 0 | |
|
Pinetop Water Community Facilities Dist Pinetop · Navajo County |
3,250 | 3 | 0 | |
|
Saguaro Water Company Vail · Pima County |
3,243 | 1 | 0 | |
|
City of Willcox Willcox · Cochise County |
3,236 | 6 | 0 | |
|
GW Farmers Water CO Santa Rita Springs Sahuarita · Pima County |
3,235 | 0 | 0 | |
|
Arizona Village County |
3,211 | 10 | 2 | |
|
Freeport McMoran Bagdad Town Bagdad · Yavapai County |
3,200 | 2 | 0 | |
|
Scua Bylas Bylas · County |
3,160 | 12 | 3 | |
|
Williams City of Williams · Coconino County |
3,145 | 7 | 1 | |
|
Voyager Water Company Tucson · Pima County |
3,121 | 0 | 0 | |
|
Grand Canyon West County |
3,120 | 2 | 0 | |
|
Desert Foothills Bullhead City · Mohave County |
3,091 | 6 | 1 | |
|
GW Saguaro Dist Water CO las Quintas Green Valley · Pima County |
3,055 | 2 | 1 | |
|
Palo Verde Nuclear Generating Station Wintersburg · Maricopa County |
3,000 | 1 | 1 | |
|
Tucson Medical Center Tucson · Pima County |
3,000 | 4 | 1 | |
|
UA Tech Park Rita Road Tucson · Pima County |
3,000 | 2 | 0 | |
|
Wellton Town of Wellton · Yuma County |
3,000 | 10 | 1 | |
|
Wmatua Hondah-McNary County |
2,988 | 3 | 1 | |
|
McPrd Lake Pleasant Lake Pleasant Area · Maricopa County |
2,950 | 0 | 0 | |
|
Hondah Casino County |
2,926 | 6 | 1 | |
|
Cottonwood Municipal Water VV2 Cottonwood · Yavapai County |
2,891 | 0 | 0 | |
|
Wickenburg Ranch Estates Wickenburg · Yavapai County |
2,877 | 1 | 0 | |
|
GW Ocotillo Water Rancho del Sol Lindo Silverbell · Pima County |
2,782 | 0 | 0 | |
|
Quartzsite Town of Quartzsite · La Paz County |
2,761 | 2 | 0 | |
|
Clearwater Utility Company INC Buckeye · Maricopa County |
2,747 | 5 | 1 | |
|
Chino Valley Town of Chino Valley · Yavapai County |
2,742 | 4 | 0 | |
|
Goodman Water Company Catalina · Pinal County |
2,668 | 2 | 0 | |
|
Ajo Improvement Company Ajo · Pima County |
2,654 | 2 | 0 | |
|
Chandler Heights Citrus Irrigation Dist Chandler · Maricopa County |
2,620 | 3 | 1 | |
|
CS los Cerros Water Company INC Catalina · Pima County |
2,613 | 1 | 0 | |
|
Gric Dpw Casa Blanca_bapchule Casa Blanca, Bapchule, Wet Camp and 2 more · County |
2,603 | 2 | 0 | |
|
Wmatua Cibecue Cibecue · County |
2,590 | 3 | 2 | |
|
Tonto Apache County |
2,580 | 6 | 1 | |
|
Gric Dpw Stotonic Stotonic, Goodyear, Gila Butte and 1 more · County |
2,566 | 3 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Arizona records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.