All water systems in Arizona
1,713 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Ehrenberg Improvement District Ehrenberg · La Paz County |
989 | 1 | 0 | |
|
Hard Rock Ntua Hard Rock, Dinnebeto, Rocky Ridge · County |
982 | 1 | 0 | |
|
Payson Water Mesa de Caballo Payson · Gila County |
976 | 2 | 0 | |
|
Chinle High School Chinle High School · County |
975 | 4 | 2 | |
|
Mountain Glen Water Servic Linden Trails Linden · Navajo County |
975 | 0 | 0 | |
|
Houck-Querino Canyon Ntua Houck, Querino Canyon · County |
971 | 0 | 0 | |
|
Klagetoh Ntua Klagetoh, South Ganado, Wide Ruins · County |
971 | 2 | 2 | |
|
Chaparral Water Company Wittmann · Maricopa County |
963 | 0 | 0 | |
|
Chino Valley High School Chino Valley · Yavapai County |
960 | 2 | 0 | |
|
Town & Country Estates Tucson · Pima County |
960 | 2 | 1 | |
|
Awc Casa Grande West Water Company Casa Grande · Pinal County |
951 | 0 | 0 | |
|
Usdj Fbp Fed Corr Inst Safford Safford · Graham County |
949 | 5 | 0 | |
|
Bacavi Village Bacavi · County |
943 | 3 | 1 | |
|
Whetstone Dwid Huachuca City · Cochise County |
940 | 1 | 0 | |
|
Maricopa Consolidated Dwid Maricopa · Pinal County |
928 | 4 | 1 | |
|
Bia Keams Canyon Keams Canyon · County |
925 | 2 | 0 | |
|
Timberland Acres Dwid Show Low · Navajo County |
922 | 3 | 0 | |
|
Freeport McMoran Miami Barney Inspiration · Gila County |
916 | 1 | 0 | |
|
Rincon Country East RV Park Tucson · Pima County |
912 | 2 | 1 | |
|
Lakewood Estates Water Company Tucson · Pima County |
905 | 1 | 0 | |
|
Adot Mohawk RA Mohawk · Yuma County |
900 | 1 | 0 | |
|
Rancho del Conejo Comm Water Coop Avra Valley · Pima County |
900 | 0 | 0 | |
|
Red Mesa Public Schools Red Mesa · County |
900 | 2 | 1 | |
|
Usfs Asnf Woods Canyon Aspen Camp Area Woods Canyon Lake · Coconino County |
900 | 1 | 0 | |
|
Circle City City of Surprise Circle City · Maricopa County |
897 | 1 | 0 | |
|
Gcnra Lees Ferry Lees Ferry · Coconino County |
890 | 5 | 1 | |
|
Walker Cantonment Area Yuma · Yuma County |
888 | 1 | 0 | |
|
Havasupai Village Supai · County |
885 | 6 | 2 | |
|
Sandario Water Company Tucson · Pima County |
885 | 1 | 1 | |
|
Greenehaven Water Company Page · Coconino County |
883 | 4 | 1 | |
|
Metropolitan Dwid E&t System Tucson · Pima County |
880 | 2 | 0 | |
|
Walden Meadows Comm Coop Wilhoit · Yavapai County |
880 | 1 | 1 | |
|
Round Rock Ntua Round Rock · County |
876 | 1 | 0 | |
|
Tsehootsooi Middle School Fort Defiance · County |
875 | 5 | 1 | |
|
Verde Lakes Water Dinky Creek Camp Verde · Yavapai County |
875 | 6 | 0 | |
|
Far Horizons East MHP Tucson · Pima County |
870 | 0 | 0 | |
|
Surprise, City of Buena Vista Surprise · Maricopa County |
870 | 1 | 0 | |
|
Verde Lakes Water Big Valley Camp Verde · Yavapai County |
870 | 6 | 1 | |
|
Nazlini Ntua Nazlini · County |
862 | 1 | 0 | |
|
Desert Gold RV Resort Brenda · La Paz County |
840 | 0 | 0 | |
|
Heber Dwid Heber · Navajo County |
839 | 5 | 2 | |
|
Sawmill Ntua Sawmill (east And South), Upper Buell Pa · County |
838 | 3 | 0 | |
|
Humboldt Water System Humboldt · Yavapai County |
830 | 1 | 0 | |
|
Pinal County Justice Complex Florence · Pinal County |
820 | 6 | 2 | |
|
Patagonia Water Department Patagonia · Santa Cruz County |
819 | 1 | 0 | |
|
Sierra Pacific Mobile Manor Yuma · Yuma County |
816 | 6 | 0 | |
|
Adot Burnt Well Rest Area Harquahala Valley · Maricopa County |
808 | 1 | 0 | |
|
Black Rock RV Village Brenda · La Paz County |
808 | 0 | 0 | |
|
Adot Ehrenberg Rest Area Ehrenberg · La Paz County |
806 | 0 | 0 | |
|
Adoc Aspc Fort Grant Bonita · Graham County |
800 | 7 | 1 |
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.