Water quality for ZIP code 85611
ZIP 85611 covers Elgin and Sierra Vista in Santa Cruz County, Arizona, one of 7 ZIP codes in the 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 |
|---|---|---|---|---|
| Sonoita Valley (north) Water Company Sonoita |
49 | 0 | 8.1 mi | |
| Casas Arroyo Association INC Sonoita |
27 | 4 | 9.9 mi | |
| Red Rock Acres HOA Patagonia |
23 | 2 | 15.3 mi | |
| Patagonia Water Department Patagonia |
819 | 1 | 16.4 mi | |
| Kino Ranch 2 Nogales |
173 | 4 | 27.5 mi | |
| Liberty Water Rio Rico Rio Rico |
17,960 | 3 | 29.4 mi | |
| Baca Float Water Company Tubac |
1,162 | 1 | 30.8 mi | |
| Avalon Gardens Water System Tubac |
100 | 2 | 31.9 mi | |
| Valle Verde Water Company East Nogales |
2,397 | 4 | 32.2 mi | |
| Epcor Tubac Tubac |
2,076 | 0 | 32.3 mi | |
| The Grand Acres Nogales |
153 | 4 | 32.4 mi | |
| Town & Country Preston Nogales |
430 | 6 | 32.5 mi | |
| Nogales City of Nogales |
22,000 | 7 | 32.5 mi | |
| Mountain View RV Ranch Green Valley |
100 | 2 | 32.6 mi | |
| Trujillo Trail Dwid Tubac |
78 | 3 | 34.3 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 |
|---|---|---|---|---|
|
Elgin School Elgin |
150 | 4 | 0 | |
|
Sonoita Mercantile Water System Sonoita |
125 | 3 | 0 | |
|
Adot Border Patrol Sonoita |
100 | 5 | 0 | |
|
Sonoita Springs Water Company Sonoita |
30 | 3 | 2 | |
|
Santa Cruz County Fairgrounds Sonoita |
297 | 3 | 1 | |
|
Patagonia RV Park Patagonia |
28 | 1 | 0 | |
|
Patagonia Sonoita Creek Preserve Patagonia |
25 | 1 | 0 | |
|
AZ State Pks Patagonia Lake Patagonia |
564 | 0 | 0 | |
|
Valle Verde Water Company West Nogales |
74 | 3 | 0 | |
|
Gen Properties LLC Nogales |
100 | 2 | 0 | |
|
Parcel 1 Water Amado |
100 | 1 | 1 | |
|
Smithsonian Inst II Amado |
35 | 2 | 1 | |
|
Tumacacori National Historic Park Nogales |
170 | 2 | 0 | |
|
Wisdom Cafe Tumacacori |
100 | 3 | 0 | |
|
Old Tumacacori Bar Tumacacori |
25 | 2 | 0 | |
|
DE Anza Trail RV Tubac |
200 | 2 | 0 | |
|
Ac's Truck Stop Nogales |
110 | 1 | 0 | |
|
Usfs-Cnf Nogales Admin Nogales |
25 | 0 | 0 | |
|
Crisantes Greenhouse Water System Amado |
60 | 6 | 1 | |
|
Usfs Cnf Bog Springs Madera Canyon |
35 | 0 | 0 |
About this data
Water systems are matched to Santa Cruz County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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. Retrieved from ECHO on Oct 11, 2026.