Is Stanfield, AZ tap water safe?
The short answer
2 of the 3 utilities serving Stanfield have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Maricopa Mountain Dwid 1 and Antelope Peak Dwid.
Maricopa Mountain Dwid 1, which serves the most people here, has 2 results above the legal limit and 1 result above the health goal. The worst: Nitrate at 15.8 ppm, above the legal limit.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down.
- Open report
Maricopa Mountain Dwid 1
Arizona · serves 450 people · lists Stanfield among the places it serves
2 results above the legal limit and 1 result above the health goal. The worst: Nitrate at 15.8 ppm, above the legal limit.
34 health-based violations since 2016
- Open report
Antelope Peak Dwid
Arizona · serves 150 people · lists Stanfield among the places it serves
3 results above the legal limit and 1 result above the health goal. The worst: Fluoride at 4.5 ppm, above the legal limit.
3 health-based violations since 2016
- Open report
Maricopa Mountain Dwid 2
Arizona · serves 120 people · lists Stanfield among the places it serves
1 result above the health goal. The worst: Arsenic at 7.3 ppb, above the health goal.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Maricopa Mountain Dwid 1’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Nitrate, Arsenic
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Nitrate, Arsenic
Culligan 10-Cup Pitcher with ZeroWater Technology (ZEROP10)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Nitrate
Water testing near Stanfield
The 3 labs Arizona certifies closest to Stanfield, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Radiation Safety Engineering, Inc.
Chandler, AZ · about 27 miles
AnalysisNow! Inc.
Chandler, AZ · about 27 miles
AGAT Laboratories
Tempe, AZ · about 34 miles
ZIP codes in Stanfield
Which ZIP codes are in Stanfield: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Arizona Department of Health Services, Arizona certified commercial drinking water laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Stanfield
Other towns in Pinal County with a page of their own.
What to do next
- Read Maricopa Mountain Dwid 1’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for NitrateRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water