Water quality in Nogales, Arizona
Nogales is in Santa Cruz County. 37 active public water systems serve the county; 32 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Santa Cruz County
16 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Valle Verde Water Company East Nogales |
2,397 | 4 | 1.2 mi | |
| Town & Country Preston Nogales |
430 | 6 | 2.1 mi | |
| Nogales City of Nogales |
22,000 | 7 | 2.7 mi | |
| Liberty Water Rio Rico Rio Rico |
17,960 | 3 | 7.3 mi | |
| Kino Ranch 2 Nogales |
173 | 4 | 8.5 mi | |
| Avalon Gardens Water System Tubac |
100 | 2 | 13.3 mi | |
| Baca Float Water Company Tubac |
1,162 | 1 | 14.6 mi | |
| Patagonia Water Department Patagonia |
819 | 1 | 15.1 mi | |
| Epcor Tubac Tubac |
2,076 | 0 | 15.3 mi | |
| Trujillo Trail Dwid Tubac |
78 | 3 | 15.4 mi | |
| Red Rock Acres HOA Patagonia |
23 | 2 | 16.2 mi | |
| Mountain View RV Ranch Green Valley |
100 | 2 | 22.1 mi | |
| Casas Arroyo Association INC Sonoita |
27 | 4 | 23.9 mi | |
| Sonoita Valley (south) Water Company Sonoita |
172 | 4 | 24.6 mi | |
| Sonoita Valley (north) Water Company Sonoita |
49 | 0 | 26.1 mi | |
| CS Santa Cruz Water CO Fort Huachuca |
82 | 5 | — |
Non-community systems in Santa Cruz County (20: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Gen Properties LLC Nogales |
100 | 2 | 0 | |
|
Valle Verde Water Company West Nogales |
74 | 3 | 0 | |
|
Ac's Truck Stop Nogales |
110 | 1 | 0 | |
|
Usfs-Cnf Nogales Admin Nogales |
25 | 0 | 0 | |
|
AZ State Pks Patagonia Lake Patagonia |
564 | 0 | 0 | |
|
Tumacacori National Historic Park Nogales |
170 | 2 | 0 | |
|
Old Tumacacori Bar Tumacacori |
25 | 2 | 0 | |
|
Wisdom Cafe Tumacacori |
100 | 3 | 0 | |
|
Patagonia Sonoita Creek Preserve Patagonia |
25 | 1 | 0 | |
|
Patagonia RV Park Patagonia |
28 | 1 | 0 | |
|
Smithsonian Inst II Amado |
35 | 2 | 1 | |
|
DE Anza Trail RV Tubac |
200 | 2 | 0 | |
|
Parcel 1 Water Amado |
100 | 1 | 1 | |
|
Crisantes Greenhouse Water System Amado |
60 | 6 | 1 | |
|
Santa Cruz County Fairgrounds Sonoita |
297 | 3 | 1 | |
|
Sonoita Mercantile Water System Sonoita |
125 | 3 | 0 | |
|
Adot Border Patrol Sonoita |
100 | 5 | 0 | |
|
Sonoita Springs Water Company Sonoita |
30 | 3 | 2 | |
|
Elgin School Elgin |
150 | 4 | 0 | |
|
Usfs Cnf Bog Springs Madera Canyon |
35 | 0 | 0 |
About this data
Water systems are matched to Santa Cruz County, nearest to Nogales first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
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.