Public Water Systems
1,493 active public water systems in AZ, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Vail Water Company | Vail, AZ | 17,500 | 173 | Clean |
| City of Show Low | Show Low, AZ | 17,139 | 825 | Clean |
| Douglas City Of | Douglas, AZ | 16,656 | 929 | Clean |
| Grand Canyon National Park | Grand Canyon, AZ | 16,590 | 424 | Clean |
| Flowing Wells Irrigation District | Tucson, AZ | 16,000 | 936 | Detected |
| Florence Water Company | Florence, AZ | 15,900 | 272 | Detected |
| City of Buckeye Sonora - Sundance | Buckeye, AZ | 15,783 | 137 | Clean |
| Apache Junction Water District | Apache Junction, AZ | 15,610 | 694 | Clean |
| US Army Fort Huachuca | Dragoon, AZ | 15,603 | 972 | Detected |
| Marana Municipal - Marana | Marana, AZ | 15,162 | 177 | Detected |
| Epcor - North East Agua Fria | El Mirage, AZ | 14,723 | 49 | Clean |
| Somerton City Of | Somerton, AZ | 14,197 | 190 | Clean |
| Epcor - Paradise Valley/Scottsdale | El Mirage, AZ | 14,107 | 94 | Clean |
| Arizona Water Co - Overgaard | Phoenix, AZ | 13,797 | 69 | Clean |
| Pueblo del Sol Water Company | Sierra Vista, AZ | 12,804 | 2,721 | Clean |
| Arizona Water Co - Lakeside | Phoenix, AZ | 12,191 | 89 | Detected |
| Arizona Water Co - Sedona | Phoenix, AZ | 12,104 | 259 | Detected |
| Cottonwood Municipal Water Cw1 | Cottonwood, AZ | 11,023 | 367 | Detected |
| Arizona Water Co - Oracle | Phoenix, AZ | 10,585 | 18 | Clean |
| Epcor - San Tan Anthem | San Tan Valley, AZ | 10,362 | 55 | Detected |
| Festival Ranch | Buckeye, AZ | 10,313 | 52 | Clean |
| Tucson Water Corona de Tucson | Tucson, AZ | 10,217 | 43 | Clean |
| City of Buckeye Tartesso Water System | Buckeye, AZ | 10,123 | 62 | - |
| Winslow City Of | Winslow, AZ | 9,789 | 256 | Clean |
| Tolleson City Of | Tolleson, AZ | 9,300 | 120 | Detected |
| Arizona Water Co - Sierra Vista | Phoenix, AZ | 9,175 | 85 | Detected |
| Beardsley Water Company 1 | Litchfield Park, AZ | 9,002 | 95 | Clean |
| Doney Park Water | Flagstaff, AZ | 8,996 | 604 | Clean |
| Cca - Eloy Complex | Eloy, AZ | 8,852 | 196 | Clean |
| Arizona Water Co - Bisbee | Phoenix, AZ | 8,707 | 32 | Detected |
| Green Valley Dwid | Sahuarita, AZ | 8,687 | 170 | Clean |
| Arizona Water Co - Miami Claypool | Phoenix, AZ | 8,656 | 206 | Detected |
| Usaf Luke Air Force Base | Luke Afb, AZ | 8,440 | 759 | Detected |
| Arizona Water Co - Pinewood | Phoenix, AZ | 8,089 | 48 | Clean |
| Pine Strawberry Wid | Pine, AZ | 8,013 | 641 | Detected |
| Eloy City Of | Eloy, AZ | 7,903 | 313 | Clean |
| Globe City Of | Globe, AZ | 7,536 | 846 | Detected |
| Page City Of | Page, AZ | 7,420 | 173 | Clean |
| Big Park Water Company | Sedona, AZ | 7,392 | 2,033 | Detected |
| Buckeye City Of | Buckeye, AZ | 7,008 | 262 | Clean |
| Quail Creek Water Company | Tucson, AZ | 6,812 | 68 | Clean |
| Avra Water Coop Inc | Tucson, AZ | 6,685 | 143 | Clean |
| Sunrise Water Company | Peoria, AZ | 6,490 | 62 | Clean |
| Wickenburg Town Of | Wickenburg, AZ | 6,481 | 233 | Clean |
| Usmc Yuma Main System | Yuma, AZ | 6,324 | 350 | Detected |
| Rose Valley Water Company | Yuma, AZ | 6,202 | 55 | Clean |
| Valley Pioneers Water Company Inc | Golden Valley, AZ | 6,063 | 149 | Clean |
| Valley Utilities Water Company Glendale | Glendale, AZ | 5,940 | 72 | Detected |
| Cave Creek Water | Cave Creek, AZ | 5,895 | 258 | Clean |
| Gw Farmers Water Co - Continental | Maricopa, AZ | 5,592 | 159 | Clean |