EPA often omits served ZIP codes for large utilities. These systems are tied to Tucson, Arizona based on this ZIP code's city or county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|
| Tucson City of |
732,906 |
Groundwater |
138 |
0 |
| Metropolitan Dwid |
45,570 |
Groundwater |
177 |
0 |
| Usaf Davis Monthan Afb |
18,640 |
Groundwater |
332 |
0 |
| Vail Water Company |
17,500 |
Groundwater |
15 |
0 |
| Flowing Wells Irrigation District |
16,000 |
Groundwater |
118 |
2 |
| Tucson Water Corona De Tucson |
10,217 |
Groundwater |
6 |
0 |
| Avra Water Coop Inc |
6,685 |
Groundwater |
16 |
0 |
| Metropolitan Dwid - Diablo Village |
5,542 |
Groundwater |
45 |
0 |
| Adoc Tucson |
4,500 |
Groundwater |
69 |
0 |
| Ray Water Company Inc |
4,495 |
Groundwater |
18 |
0 |
| Metropolitan Dwid - Hub |
4,252 |
Groundwater |
34 |
0 |
| Spanish Trail Water Company |
3,822 |
Groundwater |
64 |
0 |
| Voyager Water Company |
3,209 |
Groundwater |
96 |
0 |
| Mission View Mobile Home Park (Tucson Water Consec |
1,125 |
Groundwater Purchased |
1 |
0 |
| Town & Country Estates |
960 |
Groundwater |
25 |
1 |
| Rincon Country East RV Park |
912 |
Groundwater |
11 |
0 |
| Metropolitan Dwid - E&T System |
880 |
Groundwater |
31 |
0 |
| Sandario Water Company |
870 |
Groundwater |
19 |
3 |
| Far Horizons East MHP |
870 |
Groundwater |
7 |
0 |
| Lakewood Estates Water Company |
722 |
Groundwater |
65 |
6 |
| Mission Palms Apartments |
720 |
Groundwater |
49 |
0 |
| Gw Ocotillo Water - Diamond Bell |
706 |
Groundwater |
6 |
0 |
| Winterhaven Water Development |
685 |
Groundwater |
20 |
0 |
| La Casita Water Company 3 |
605 |
Groundwater |
19 |
0 |
| Vista Del Norte MHP |
554 |
Groundwater |
27 |
0 |
| Trails West MHP |
500 |
Groundwater Purchased |
31 |
0 |
| Campbell Estates MHP |
450 |
Groundwater |
29 |
0 |
| Thim Utility Company 2 |
445 |
Groundwater |
22 |
0 |
| Cactus Country RV Resort |
420 |
Groundwater |
41 |
2 |
| Diamond Grove Mobile Home Estates |
385 |
Groundwater |
27 |
0 |
| Lazy C Water Service |
359 |
Groundwater |
62 |
0 |
| Federal Correctional Inst |
350 |
Groundwater |
110 |
2 |
| Bella Capri MHP |
342 |
Groundwater |
25 |
1 |
| Mesaland Water Company |
294 |
Groundwater |
47 |
0 |
| Rio Viejo Water |
272 |
Groundwater |
9 |
0 |
| Tierra Linda Hoa Water Company |
266 |
Groundwater |
172 |
3 |
| Rio Mercado Water |
266 |
Groundwater |
14 |
1 |
| Gw Ocotillo Water - Silverbell West |
263 |
Groundwater |
144 |
0 |
| La Casita Water Company 2 |
261 |
Groundwater |
15 |
0 |
| Far Horizons MHP |
258 |
Groundwater |
25 |
0 |
| Sierrita Mountain Water Coop |
258 |
Groundwater |
17 |
0 |
| Gw Saguaro Dist Water Co - Tala Way |
255 |
Groundwater |
21 |
0 |
| La Cholla Airpark |
250 |
Groundwater Purchased |
53 |
0 |
| Thim Water Company 2 |
247 |
Groundwater |
20 |
0 |
| Gw Saguaro Dist Water Co - Rincon |
232 |
Groundwater |
147 |
89 |
| Ranchwood Community |
225 |
Groundwater |
17 |
0 |
| Desert Shores RV MHP |
220 |
Groundwater |
8 |
1 |
| Rio Vista Mobile Home Park |
217 |
Groundwater |
23 |
2 |
| Halcyon Acres Water Users Association |
215 |
Groundwater |
5 |
0 |
| Crescent Manor MHP |
200 |
Groundwater |
38 |
0 |
| Gw Saguaro Dist Water Co - Mirabell |
180 |
Groundwater |
40 |
0 |
| La Casita Water Company 1 |
174 |
Groundwater |
6 |
0 |
| Gw Ocotillo Water - Thunderhead |
174 |
Groundwater |
4 |
0 |
| Silver Cholla LLC |
168 |
Groundwater |
4 |
0 |
| Casitas De Castilian |
167 |
Groundwater |
40 |
4 |
| Halcyon Acres 2 |
164 |
Groundwater |
25 |
0 |
| Via Verde West MHP |
156 |
Groundwater |
7 |
1 |
| Desert Water Coop |
150 |
Groundwater |
41 |
1 |
| North La Cholla MHP |
150 |
Groundwater |
105 |
0 |
| Samalayuca Improvement Assoc |
150 |
Groundwater |
16 |
0 |
| Raindance Water Coop |
148 |
Groundwater |
17 |
0 |
| Catalina Village |
107 |
Groundwater |
83 |
0 |
| Thim Utility Company - Rancho Vista |
105 |
Groundwater |
15 |
0 |
| Crossroads Park MHP |
100 |
Groundwater |
10 |
1 |
| Wells Fargo Water Company |
83 |
Groundwater |
29 |
0 |
| Metropolitan Dwid - Lazy B |
77 |
Groundwater |
36 |
0 |
| Catalina Country Estates |
77 |
Groundwater |
11 |
0 |
| Riverside Apartments |
75 |
Groundwater |
22 |
2 |
| Rincon Mesa Landowners |
75 |
Groundwater |
26 |
1 |
| High Chaparral Water Coop |
72 |
Groundwater |
49 |
3 |
| Carolanne Drive Hoa |
72 |
Groundwater |
16 |
1 |
| Thim Utility Company - Parkin |
69 |
Groundwater |
5 |
2 |
| Gw Saguaro Dist Water Co - Tortolita |
69 |
Groundwater |
11 |
0 |
| Cammies Foothills Vista Mhc |
62 |
Groundwater |
25 |
0 |
| Rancho Sierrita Well Assoc |
55 |
Groundwater |
41 |
2 |
| Summit Water Coop |
53 |
Groundwater |
48 |
0 |
| Sierra Court Mhc LLC |
51 |
Groundwater |
99 |
0 |
| Pico Vista Community Well |
49 |
Groundwater |
10 |
0 |
| Klafter Well Coop |
45 |
Groundwater |
21 |
0 |
| Wilmot Water Users Group |
30 |
Groundwater |
13 |
1 |
| Gator Water Company |
29 |
Groundwater |
16 |
2 |
| Siete Casas Joint Venture |
25 |
Groundwater |
33 |
0 |
| University of Arizona |
50,000 |
Groundwater |
62 |
0 |
| Tucson Medical Center |
3,000 |
Groundwater |
21 |
1 |
| Ua Tech Park - Rita Road |
3,000 |
Groundwater |
16 |
0 |
| Saguaro National Park |
1,440 |
Groundwater |
17 |
0 |
| Salpointe Catholic High School |
1,300 |
Groundwater |
4 |
0 |
| Tucson Country Day School |
800 |
Groundwater |
7 |
0 |
| Pcnr Arthur Pack Regional |
420 |
Groundwater |
7 |
0 |
| Tucson Racquet & Fitness Club |
330 |
Groundwater |
25 |
2 |
| Saint Phillips Plaza |
220 |
Groundwater |
20 |
1 |
| Santa Catalina Catholic Church |
212 |
Groundwater |
30 |
0 |
| Pcnr Colossal Cave |
210 |
Groundwater |
4 |
0 |
| Greenfields Country Day School |
163 |
Groundwater |
232 |
2 |
| Pcnr Gilbert Ray Tmp |
150 |
Groundwater |
7 |
2 |
| Tanque Verde Guest Ranch |
150 |
Groundwater |
34 |
0 |
| Pcnr Arthur Pack Old - Crooked Tree |
150 |
Groundwater |
4 |
0 |
| Pcnr Motor Sports |
100 |
Groundwater |
4 |
0 |
| Pcnr Picture Rocks |
100 |
Groundwater |
2 |
0 |
| Lil Abners Steakhouse |
100 |
Groundwater |
1 |
0 |
| Pcnr Fairgrounds |
87 |
Groundwater |
0 |
0 |
| Tucson Ready Mix Orange Grove |
80 |
Groundwater |
13 |
0 |
| Campbell Avenue Farms |
65 |
Groundwater |
7 |
0 |
| White Stallion Guest Ranch |
60 |
Groundwater |
6 |
1 |
| Sopori School Park |
50 |
Groundwater |
0 |
0 |
| Youth Haven Ranches |
40 |
Groundwater |
24 |
1 |
| Hitda Training Center |
35 |
Groundwater |
0 |
0 |
| Redwood Lodge |
25 |
Groundwater |
5 |
0 |
| Pcnr La Posta Quemada |
25 |
Groundwater |
1 |
0 |
| El Mesquital Guest Ranch |
25 |
Groundwater |
0 |
0 |