Tapcensus

Water quality for ZIP code 85750

ZIP 85750 covers Catalina Foothills in Pima County, Arizona, one of 51 ZIP codes in the county. 193 active public water systems serve the county; 127 had an EPA violation in the past three years.

Most likely your provider

Tucson City of AZ0410112 · Community water system · Ground water · Tucson
Serves 732,906 people Rules violated, past 3 years 3 Last sanitary survey Nov 12, 2025 Distance 7.8 mi

Your location is within the outer bounds of this system's EPA service area.

Other community water systems in Pima County

141 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Metropolitan Dwid Hub
Tucson
4,252 1 2.1 mi
Far Horizons MHP
Tucson
258 0 4.6 mi
Crossroads Park MHP
Tucson
100 1 4.6 mi
Cammies Foothills Vista MHC
Tucson
62 1 4.7 mi
Far Horizons East MHP
Tucson
870 0 4.8 mi
Catalina Village
Tucson
107 3 5.1 mi
Rio Vista Mobile Home Park
Tucson
217 0 5.4 mi
Winterhaven Water Development
Tucson
685 0 5.9 mi
Halcyon Acres Water Users Association
Tucson
215 1 6.4 mi
Campbell Estates MHP
Tucson
450 1 6.5 mi
Halcyon Acres 2
Tucson
144 0 6.7 mi
Vista del Norte MHP
Tucson
554 0 6.9 mi
Casitas de Castilian
Tucson
167 5 8.4 mi
Rincon Country East RV Park
Tucson
912 2 8.5 mi
Mission Palms Apartments
Tucson
720 1 8.7 mi
Crescent Manor MHP
Tucson
200 1 9.2 mi
Desert Shores RV MHP
Tucson
220 2 9.3 mi
Samalayuca Improvement Assoc
Tucson
150 1 9.3 mi
Flowing Wells Irrigation District
Tucson
16,000 6 9.6 mi
Usaf Davis Monthan Afb
Tucson
18,640 3 9.7 mi
Silver Cholla LLC
Tucson
168 0 10.1 mi
North la Cholla MHP
Tucson
150 0 10.1 mi
Mesaland Water Company
Tucson
294 5 10.3 mi
Town & Country Estates
Tucson
960 2 10.4 mi
Rio Mercado Water
Tucson
266 5 10.4 mi
All 142 community water systems in Pima County
Non-community systems in Pima County (51: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Tucson Medical Center
Tucson
3,000 4 1
Tucson Country Day School
Tucson
800 0 0
Tucson Racquet & Fitness Club
Tucson
330 3 1
Campbell Avenue Farms
Tucson
65 0 0
Saint Phillips Plaza
Tucson
220 2 0
Salpointe Catholic High School
Tucson
1,300 0 0
University of Arizona
Tucson
50,000 0 0
Tanque Verde Guest Ranch
Tucson
150 2 0
Latter Day Saints Church
Summerhaven
200 4 1
Soldier Camp Permittees
Summerhaven
30 3 0
Saguaro National Park
Tucson
1,440 2 0
Pcnr Colossal Cave
Tucson
210 1 0
Pcnr Gilbert Ray Tmp
Tucson
150 2 0
Pcnr Motor Sports
Tucson
100 0 0
Pcnr Picture Rocks
Tucson
100 1 0
Pcnr Fairgrounds
Tucson
87 0 0
Tucson Ready Mix Orange Grove
Tucson
80 0 0
EL Mesquital Guest Ranch
Tucson
25 0 0
Pcnr la Posta Quemada
Tucson
25 0 0
Usfs Cnf Ski Lodge
Mount Lemmon
350 0 0
Redwood Lodge
Tucson
25 1 0
Greenfields Country Day School
Tucson
163 6 0
Santa Catalina Catholic Church
Tucson
212 2 0
AZ State Parks Catalina Mountain
Catalina
330 1 0
UA Tech Park Rita Road
Tucson
3,000 2 0
Hot Rod Water
Vail
90 3 0
Hitda Training Center
Tucson
35 0 0
Lil Abners Steakhouse
Tucson
100 0 0
Vail School District Elementary School
Vail
1,680 3 0
Calportland Rillito Cement Plant
Rillito
184 4 2
White Stallion Guest Ranch
Tucson
60 1 0
Silverbell Mining, LLC
Marana
200 3 0
Marana Municipal Airport
Marana
55 0 0
Asarco Mission Unit
Green Valley
586 0 0
Marana High School
Marana
2,450 1 0
Marana Estes Elementary School
Marana
2,000 1 0
Bayer R&d Services LLC Marana
Marana
160 2 0
Pcnr Three Point
Three Points
52 2 0
Thim Utility Corporation VFW
Three Points
413 0 0
Caterpillar INC
Green Valley
200 0 0
Sopori School Park
Tucson
50 0 0
Elkhorn Ranch
Sasabe
40 1 0
Sasabe Border Village
Sasabe
31 5 1
Lukeville Border Station
Lukeville
45 1 0
Usfs Cnf Sabino Canyon Stop 8
Sabino Canyon
550 0 0
Usfs Cnf Loma Linda
Mount Lemmon
350 1 0
Camp Whispering Pines
Mount Lemon
240 0 0
Camp Lawton
Mount Lemmon
200 2 0
Caballo Loco Ranch
Sasabe
150 3 1
Buenos Aires National Wildlife Refuge
Sasabe
54 7 1
All non-community systems
About this data

Water systems are matched to Pima 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.