Tapcensus

Water quality for ZIP code 85172

ZIP 85172 covers Stanfield, Casa Grande, and Maricopa in Pinal County, Arizona, one of 29 ZIP codes in the county. 95 active public water systems serve the county; 80 had an EPA violation in the past three years.

Most likely your provider

Arizona Water CO Stanfield AZ0411012 · Community water system · Ground water · Casa Grande
Serves 628 people Rules violated, past 3 years 1 Last sanitary survey Dec 16, 2025 Distance 1.6 mi

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

Other community water systems in Pinal County

63 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Valle Escondido
Maricopa
405 7 5.2 mi
Sierra Vista RV Park
Casa Grande
160 4 5.2 mi
Awc Casa Grande West Water Company
Casa Grande
951 0 5.9 mi
Copper Mountain Ranch Cfd
Maricopa
1,071 4 6.4 mi
New Saddleback Vista
Maricopa
100 4 9.4 mi
Maricopa Mountain Dwid 1
Stanfield
450 2 9.6 mi
Maricopa Mountain Dwid 2
Stanfield
120 0 9.6 mi
Antelope Peak Dwid
Stanfield
150 6 9.9 mi
Papago Butte Dwid
Maricopa
700 4 11.0 mi
GW Santa Cruz Water CP Water CO
Casa Grande
37 1 11.2 mi
GW Santa Cruz Water Maricopa SW
Maricopa
1,848 1 11.3 mi
GW Santa Cruz Water -Twin Hawks Water
Maricopa
64 2 11.3 mi
Thunderbird Farms Dwid
Maricopa
2,315 2 12.1 mi
GW Santa Cruz Water CO
Maricopa
84,000 7 12.4 mi
American Realty Mortgage Company
Maricopa
60 0 12.8 mi
Awc Casa Grande South Water Company
Casa Grande
176 1 13.0 mi
Arizona Water CO Pinal Valley
Casa Grande
134,432 2 13.4 mi
Maricopa Consolidated Dwid
Maricopa
928 4 13.5 mi
Sunland Water Company
Arizona City
227 1 18.5 mi
Picacho Water Company
Casa Grande
2,440 3 19.1 mi
Signal Peak Water Company
Coolidge
99 4 19.6 mi
Arizona Water CO Tierra Grande
Casa Grande
1,819 1 21.8 mi
Eloy City of
Eloy
8,999 6 22.2 mi
Arizona Training Program
Coolidge
470 8 25.3 mi
Cca Eloy Complex
Eloy
8,852 3 25.4 mi
All 64 community water systems in Pinal County
Non-community systems in Pinal County (31: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Nissan Technical Center
Stanfield
200 2 0
Nissan Technical Center Drivers Area
Stanfield
100 0 0
John Wayne RV Ranch
Stanfield
125 2 0
Scotts Miracle Gro
Maricopa
25 2 0
Vorelco Test Facility
Vorello
200 1 0
Maricopa Agriculture Center
Maricopa
100 6 0
Awc Coolidge City of Municipal Airport
Coolidge
40 1 0
GW Santa Cruz Water CO Picacho Cove
Coolidge
35 2 0
Picacho Elementary School District
Picacho
200 5 0
Coolidge Florence Elks Lodge 2350
Florence
100 2 0
McPrd San Tan Mtn Park
Queen Creek
150 0 0
Town of Florence Rodeo Well
Florence
500 0 0
Arizona National Guard Florence
Florence
110 1 0
JO Combs Elementary School
Queen Creek
325 4 2
AZ State Parks Picacho Peak
Picacho
121 1 0
Rancho Sonora Inn RV Park
Rancho Sonora Inn
125 0 0
Hitching Post
Apache Junction
100 2 0
Goldfield Ghost Town
Apache Junction
450 0 0
Silver Bell Army Heliport
Marana
500 2 0
Marana Aerospace Solutions
Marana
400 4 0
Ussocom Parachute Training
Marana
48 1 0
Resolution Copper Company
Superior
300 2 0
Central AZ College Aravaipa
Winkelman
100 3 1
EL Rancho Robles
Oracle
34 1 0
Biosphere II
Oracle
221 1 0
Triangle Y Ranch Camp
Oracle
125 2 1
Usfs Cnf Pepper Sauce
Oracle
120 0 0
Arizona Ziplines
Oracle
100 0 0
AZ State Pks Oracle State Park
Oracle
100 0 0
Youth Haven Ranches
Tucson
40 2 0
Kelvin Simmons Coop
Riverside
28 6 1
About this data

Water systems are matched to Pinal 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.