Is Vail, AZ tap water safe?
The short answer
3 of the 9 utilities serving Vail have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Pantano Water Coop, Kahlua Well Coop and Wildcat One Well Coop.
Vail Water Company, which serves the most people here, has 1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 38.5 ppb, above EPA’s health benchmark. 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 Vail’s ZIP codes, from EPA’s estimates.
- Open report
Vail Water Company
Arizona · serves 17,500 people · about 930 in Vail
1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 38.5 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Tucson Water Corona de Tucson
Arizona · serves 10,217 people · about 670 in Vail
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 32 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Saguaro Water Company
Arizona · serves 3,243 people · about 180 in Vail
1 result above the health goal. The worst: Arsenic at 1.4 ppb, above the health goal.
No health-based violations since 2016
- Open report
Pantano Water Coop
Arizona · serves 156 people · under 100 in Vail
2 results above the health goal. The worst: Lead at 8.0 ppb, above the health goal.
1 health-based violation since 2016
- Open report
Pocketknife Water Coop
Arizona · serves 70 people · under 100 in Vail
2 results above the health goal. The worst: Arsenic at 4.3 ppb, above the health goal.
No health-based violations since 2016
- Open report
Kahlua Well Coop
Arizona · serves 99 people · under 100 in Vail
1 result above the health goal. The worst: Arsenic at 5.6 ppb, above the health goal.
1 health-based violation since 2016
- Open report
Superstition Water Coop
Arizona · serves 45 people · under 100 in Vail
1 result above the health goal. The worst: Arsenic at 2.2 ppb, above the health goal.
No health-based violations since 2016
- Open report
Garigans Gulch Water Coop
Arizona · serves 35 people · under 100 in Vail
2 results above the health goal. The worst: Arsenic at 4.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
Wildcat One Well Coop
Arizona · serves 52 people · under 100 in Vail
2 results above the health goal. The worst: Arsenic at 3.8 ppb, above the health goal.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Vail Water Company’s water, which serves the most people here. Another utility’s report names what handles its own results.
Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money
Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: 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: 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: Arsenic
Water testing near Vail
The 3 labs Arizona certifies closest to Vail, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Turner Laboratories, Inc.
Tucson, AZ · about 20 miles
Complete Analytical Services, LLC
Tucson, AZ · about 20 miles
Legend Technical Services of Arizona, Inc. DBA Legend Analytical
Tucson, AZ · about 20 miles
ZIP codes in Vail
Which ZIP codes are in Vail: 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 Vail
Other towns in Pima County with a page of their own.
What to do next
- Read Vail Water Company’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About LithiumWhat it does to health, where it comes from, and the certification claim that addresses it.About Lithium
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water