County · Arizona
Pinal County, Arizona: drinking water records
Explore EPA records for 68 community water systems across 29 ZIP codes in Pinal County, then find water-testing resources and available recent monitoring-station readings.
Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages
Drinking-water records
EPA survey and compliance records are historical reports. UCMR 5 results are available for 17 of the 68 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems in this county
All 68 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Epcor - San Tan AZ0411128 | 87,435 | 420 | 0 | 1 | 0 ppbbelow the action level |
| Gw Santa Cruz Water Co AZ0411131 | 84,000 | 120 | 0 | 1 | 0 ppbbelow the action level |
| Florence Water Company AZ0411017 | 15,900 | 270 | 3 | 1 | 0 ppbbelow the action level |
| Apache Junction Water District AZ0411039 | 15,610 | 120 | 0 | 5 | 0 ppbbelow the action level |
| Ak-Chin Village 090400090 | 11,646 | 120 | 1 | 2 | 1 ppbbelow the action level |
| Eloy City of AZ0411030 | 7,903 | 120 | 0 | 2 | 1.8 ppbbelow the action level |
| Arizona Water Co - San Manuel AZ0411020 | 4,748 | 60 | 0 | 1 | 0 ppbbelow the action level |
| Adoc Eyman Unit AZ0411705 | 3,969 | 60 | 0 | 4 | 1.3 ppbbelow the action level |
| Copper Mountain Ranch Cfd AZ0411328 | 1,071 | 60 | 0 | 5 | 0 ppbbelow the action level |
| Adoc Florence Asp AZ0411066 | 1,001 | 120 | 0 | 2 | 2.2 ppbbelow the action level |
| Arizona Water Co - Pinal Valley AZ0411009 | 134,432 | 600 | 6 | 0 | 0 ppbbelow the action level |
| Arizona Water Co - Apache Junction AZ0411004 | 62,055 | 120 | 0 | 0 | 0 ppbbelow the action level |
| Lago del Oro Water Company AZ0411117 | 18,132 | 780 | 2 | 0 | 0 ppbbelow the action level |
| Arizona Water Co - Oracle AZ0411019 | 10,585 | 240 | 0 | 0 | 0 ppbbelow the action level |
| Epcor - San Tan Anthem AZ0411136 | 10,362 | 120 | 6 | 0 | 0 ppbbelow the action level |
| Cca - Eloy Complex AZ0411115 | 8,852 | 120 | 0 | 0 | 0.5 ppbbelow the action level |
| Arizona Water Co - Superior AZ0411021 | 4,393 | 60 | 0 | 0 | 0 ppbbelow the action level |
| Thunderbird Farms Dwid AZ0411100 | 2,231 | 0 | 0 | 4 | 0 ppbbelow the action level |
| Kearny Town of AZ0411031 | 1,950 | 0 | 0 | 2 | 6.3 ppbbelow the action level |
| Arizona Water Co - Tierra Grande AZ0411076 | 1,796 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Mammoth Town of AZ0411018 | 1,181 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Maricopa Consolidated Dwid AZ0411036 | 928 | 0 | 0 | 3 | 0 ppbbelow the action level |
| Pinal County Justice Complex AZ0411560 | 820 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Arizona Water Co - Stanfield AZ0411012 | 639 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Tonto Basin Water - Cactus Forest AZ0411052 | 613 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Sun Valley Farms Unit Vi AZ0411111 | 600 | 0 | 0 | 7 | 1.8 ppbbelow the action level |
| Desert Gardens RV Resort Co-Op, INC AZ0411129 | 532 | 0 | 0 | 20 | 15 ppbat or above the action level |
| Papago Butte Dwid AZ0411097 | 530 | 0 | 0 | 34 | 0 ppbbelow the action level |
| Arizona Training Program AZ0411037 | 470 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Maricopa Mountain Dwid 1 AZ0411087 | 450 | 0 | 0 | 32 | 0 ppbbelow the action level |
| Park Water Company INC AZ0411407 | 416 | 0 | 0 | 2 | 12 ppbbelow the action level |
| Valle Escondido AZ0411409 | 405 | 0 | 0 | 7 | 0 ppbbelow the action level |
| Picacho Peak RV Resort AZ0411547 | 400 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Silverbell Irrigation & Drainage Dist AZ0411005 | 375 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Skyline Resort RV Park AZ0411556 | 375 | 0 | 0 | 5 | 0 ppbbelow the action level |
| Picacho Dwid AZ0411042 | 340 | 0 | 0 | 4 | 0 ppbbelow the action level |
| Villa Grande Dwid AZ0411321 | 283 | 0 | 0 | 30 | 0 ppbbelow the action level |
| Sunland Water Company AZ0411334 | 227 | 0 | 0 | 4 | 0 ppbbelow the action level |
| Arizonian RV Resort AZ0411708 | 225 | 0 | 0 | 4 | 7 ppbbelow the action level |
| Sierra Vista RV Park AZ0411383 | 200 | 0 | 0 | 18 | 0 ppbbelow the action level |
| Whispering Wind Mobile Home Park AZ0411365 | 200 | 0 | 0 | 2 | 2 ppbbelow the action level |
| Awc - Casa Grande South Water Company AZ0411061 | 176 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Antelope Peak Dwid AZ0411712 | 150 | 0 | 0 | 3 | 0 ppbbelow the action level |
| New Saddleback Vista AZ0411557 | 100 | 0 | 0 | 5 | 0 ppbbelow the action level |
| American Realty Mortgage Company AZ0411301 | 60 | 0 | 0 | 7 | 0 ppbbelow the action level |
| Aravaipa Water Company AZ0411003 | 60 | 0 | 0 | 2 | 0.8 ppbbelow the action level |
| Picacho Peak Water Company AZ0411038 | 55 | 0 | 0 | 7 | 0 ppbbelow the action level |
| Bidegain Water Company AZ0411022 | 49 | 0 | 0 | 3 | 0 ppbbelow the action level |
| Northern Section 4 Coop AZ0411201 | 48 | 0 | 0 | 2 | 0.6 ppbbelow the action level |
| Jackrabbit 090400231 | 40 | 0 | 0 | 1 | 1 ppbbelow the action level |
| Breezeway Trailer Park AZ0411315 | 38 | 0 | 0 | 5 | 8.1 ppbbelow the action level |
| Saguaro Mobile Home Park AZ0411381 | 36 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Indian Hills Estates AZ0411324 | 30 | 0 | 0 | 6 | 0.3 ppbbelow the action level |
| Cs Carter Water Company AZ0411114 | 28 | 0 | 0 | 4 | 0 ppbbelow the action level |
| Gw Santa Cruz Water Co - Red Rock AZ0411160 | 3,813 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Goodman Water Company AZ0411130 | 2,656 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Picacho Water Company AZ0411135 | 2,440 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Queen Valley Dwid AZ0411044 | 1,200 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Gw Santa Cruz Water - Maricopa Sw AZ0411575 | 1,170 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Awc - Casa Grande West Water Company AZ0411024 | 943 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Chui Chu 090400003 | 420 | 0 | 0 | 0 | 1.9 ppbbelow the action level |
| The Oaks Mobile Home Park AZ0411062 | 180 | 0 | 0 | 0 | 3.3 ppbbelow the action level |
| Maricopa Mountain Dwid 2 AZ0411322 | 120 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Signal Peak Water Company AZ0411079 | 99 | 0 | 0 | 0 | 0.7 ppbbelow the action level |
| Kohatk 090400016 | 80 | 0 | 0 | 0 | 0.9 ppbbelow the action level |
| Gw Santa Cruz Water -Twin Hawks Water AZ0411460 | 57 | 0 | 0 | 0 | 3.5 ppbbelow the action level |
| Davis Ranch Land Owners AZ0411090 | 40 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Gw Santa Cruz Water - Cp Water Co AZ0411151 | 37 | 0 | 0 | 0 | 0 ppbbelow the action level |
Shaded rows report lead at or above the 15 ppb action level in their latest monitoring period. EPA sets that level for the value 9 in 10 sampled homes fall at or below; reaching it requires the utility to act, and it is not a measurement of any single tap. One system in this table is at or above it. What an action level means
USGS · Monitoring stations
The water, more recently.
Available station readings in Pinal County, Arizona. Each measurement keeps its time, unit and original source.
These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.
Recent observations load when this section comes into view.
How these readings update
We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.
Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.
Your next step
Water testing, reports & local help.
Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.
Official national directories
Water testing
Find your state’s private-well program
EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.
Water testing
Find a certified drinking-water laboratory
Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.
Public records
Find your utility’s Consumer Confidence Report
EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.
Public records
Explore USGS water observations
Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.
A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.
Understand water testing and laboratory reportsResource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction
Explore your area
Local coverage in Pinal County
29ZIP areas in this overview
Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.
Towns and communities
- Apache Junction
- Casa Blanca
- Casa Grande
- Coolidge
- Dudleyville
- Eloy
- Florence
- Gold Canyon
- Goodyear
- Kearny
- Mammoth
- Marana
- Maricopa
- Picacho
- Queen Creek
- Red Rock
- Sacaton
- Saddlebrooke
- San Manuel
- San Tan Valley
- Stanfield
- Superior
View ZIP areas and understand coverage
- 85118Gold Canyon
- 85119Apache Junction
- 85120Apache Junction
- 85121Casa Blanca
- 85122Casa Grande
- 85123Eloy
- 85128Coolidge
- 85131Eloy
- 85132Florence
- 85137Kearny
- 85138Maricopa
- 85139Goodyear
- 85140San Tan Valley
- 85141Picacho
- 85142Queen Creek
- 85143San Tan Valley
- 85145Red Rock
- 85147Sacaton
- 85172Stanfield
- 85173Superior
- 85191
- 85192Dudleyville
- 85193Casa Grande
- 85194Casa Grande
- 85618Mammoth
- 85623Mammoth
- 85631San Manuel
- 85658Marana
- 85739Saddlebrooke
These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.
Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.
Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.