Water quality for ZIP code 85646
ZIP 85646 covers Tubac, Tumacacori-Carmen, and Rio Rico 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 |
|---|---|---|---|---|
| Epcor Tubac Tubac |
2,076 | 0 | 7.4 mi | |
| Avalon Gardens Water System Tubac |
100 | 2 | 7.8 mi | |
| Mountain View RV Ranch Green Valley |
100 | 2 | 8.2 mi | |
| Trujillo Trail Dwid Tubac |
78 | 3 | 9.5 mi | |
| Liberty Water Rio Rico Rio Rico |
17,960 | 3 | 10.1 mi | |
| Patagonia Water Department Patagonia |
819 | 1 | 13.4 mi | |
| Red Rock Acres HOA Patagonia |
23 | 2 | 14.6 mi | |
| Casas Arroyo Association INC Sonoita |
27 | 4 | 15.4 mi | |
| Valle Verde Water Company East Nogales |
2,397 | 4 | 16.8 mi | |
| Sonoita Valley (south) Water Company Sonoita |
172 | 4 | 17.3 mi | |
| Sonoita Valley (north) Water Company Sonoita |
49 | 0 | 17.4 mi | |
| The Grand Acres Nogales |
153 | 4 | 18.1 mi | |
| Town & Country Preston Nogales |
430 | 6 | 19.2 mi | |
| Nogales City of Nogales |
22,000 | 7 | 19.7 mi | |
| Kino Ranch 2 Nogales |
173 | 4 | 21.4 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 |
|---|---|---|---|---|
|
Smithsonian Inst II Amado |
35 | 2 | 1 | |
|
DE Anza Trail RV Tubac |
200 | 2 | 0 | |
|
Wisdom Cafe Tumacacori |
100 | 3 | 0 | |
|
Tumacacori National Historic Park Nogales |
170 | 2 | 0 | |
|
Old Tumacacori Bar Tumacacori |
25 | 2 | 0 | |
|
Parcel 1 Water Amado |
100 | 1 | 1 | |
|
Crisantes Greenhouse Water System Amado |
60 | 6 | 1 | |
|
AZ State Pks Patagonia Lake Patagonia |
564 | 0 | 0 | |
|
Patagonia Sonoita Creek Preserve Patagonia |
25 | 1 | 0 | |
|
Patagonia RV Park Patagonia |
28 | 1 | 0 | |
|
Valle Verde Water Company West Nogales |
74 | 3 | 0 | |
|
Gen Properties LLC Nogales |
100 | 2 | 0 | |
|
Santa Cruz County Fairgrounds Sonoita |
297 | 3 | 1 | |
|
Sonoita Springs Water Company Sonoita |
30 | 3 | 2 | |
|
Sonoita Mercantile Water System Sonoita |
125 | 3 | 0 | |
|
Adot Border Patrol Sonoita |
100 | 5 | 0 | |
|
Ac's Truck Stop Nogales |
110 | 1 | 0 | |
|
Usfs-Cnf Nogales Admin Nogales |
25 | 0 | 0 | |
|
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, 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.