Is Tonto Basin, AZ tap water safe?
The short answer
2 of the 3 utilities serving Tonto Basin have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Tonto Basin Water - Lr Gardens West and North Bay Estates.
Tonto Basin Water - Lr Gardens West, which serves the most people here, has 2 results above the health goal. The worst: Lead at 8.5 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
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. They are listed by how many people each serves in Tonto Basin’s ZIP codes, from EPA’s estimates.
- Open report
Tonto Basin Water - Lr Gardens West
Arizona · serves 1,172 people · under 100 in Tonto Basin
2 results above the health goal. The worst: Lead at 8.5 ppb, above the health goal.
2 health-based violations since 2016
- Open report
North Bay Estates
Arizona · serves 156 people · under 100 in Tonto Basin
1 result above the legal limit and 2 results above the health goal. The worst: Nitrate at 9.1 ppm, above the legal limit.
2 health-based violations since 2016
- Open report
Lake Roosevelt Gardens East
Arizona · serves 121 people · under 100 in Tonto Basin
1 result above the health goal. The worst: Arsenic at 3.4 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 Tonto Basin Water - Lr Gardens West’s water, which serves the most people here. Another utility’s report names what handles its own results.
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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: Lead, Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Lead, Arsenic
Water testing near Tonto Basin
The 3 labs Arizona certifies closest to Tonto Basin, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Statewide Laboratory
Mesa, AZ · about 43 miles
AGAT Laboratories
Tempe, AZ · about 54 miles
Aquatic Consulting & Testing, Inc.
Tempe, AZ · about 54 miles
ZIP codes in Tonto Basin
Which ZIP codes are in Tonto Basin: 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 Tonto Basin
Other towns in Gila County with a page of their own.
What to do next
- Read Tonto Basin Water - Lr Gardens West’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for LeadRanked by certification and what they cost over five years.The best water filters for lead, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water