Is Tubac, AZ tap water safe?
The short answer
3 of the 5 utilities serving Tubac have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Trujillo Trail Dwid, Avalon Gardens Water System and Desert Paradise MHP LLC.
Epcor - Tubac, which serves the most people here, has 1 result above the health goal. The worst: Arsenic at 5.5 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 Tubac’s ZIP codes, from EPA’s estimates.
- Open report
Epcor - Tubac
Arizona · serves 2,076 people · about 170 in Tubac
1 result above the health goal. The worst: Arsenic at 5.5 ppb, above the health goal.
No health-based violations since 2016
- Open report
Baca Float Water Company
Arizona · serves 1,162 people · under 100 in Tubac
1 result above the health goal. The worst: Arsenic at 6.1 ppb, above the health goal.
No health-based violations since 2016
- Open report
Trujillo Trail Dwid
Arizona · serves 78 people · under 100 in Tubac
3 results above the health goal. The worst: Arsenic at 7.9 ppb, above the health goal.
2 health-based violations since 2016
- Open report
Avalon Gardens Water System
Arizona · serves 100 people · lists Tubac among the places it serves
1 result above the health goal. The worst: Arsenic at 2.5 ppb, above the health goal.
3 health-based violations since 2016
- Open report
Desert Paradise MHP LLC
Arizona · serves 90 people · lists Tubac among the places it serves
2 results above the health goal. The worst: Arsenic at 4.6 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 Epcor - Tubac’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: 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 Tubac
The 3 labs Arizona certifies closest to Tubac, 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 38 miles
Complete Analytical Services, LLC
Tucson, AZ · about 38 miles
Legend Technical Services of Arizona, Inc. DBA Legend Analytical
Tucson, AZ · about 38 miles
ZIP codes in Tubac
Which ZIP codes are in Tubac: 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 Tubac
Other towns in Santa Cruz County with a page of their own.
What to do next
- Read Epcor - Tubac’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked 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