Is Tumacacori-Carmen, AZ tap water safe?
The short answer
1 of the 3 utilities serving Tumacacori-Carmen has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Avalon Gardens Water System.
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 Tumacacori-Carmen’s ZIP codes, from EPA’s estimates.
- Open report
Epcor - Tubac
Arizona · serves 2,076 people · about 160 in Tumacacori-Carmen
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
Avalon Gardens Water System
Arizona · serves 100 people · under 100 in Tumacacori-Carmen
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
Liberty Water Rio Rico
Arizona · serves 17,960 people · under 100 in Tumacacori-Carmen
2 results above EPA’s new limit, which takes effect in 2029, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOS at 40.9 ppt, above EPA’s new limit, which takes effect in 2029.
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 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 Tumacacori-Carmen
The 3 labs Arizona certifies closest to Tumacacori-Carmen, 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 45 miles
Complete Analytical Services, LLC
Tucson, AZ · about 45 miles
Legend Technical Services of Arizona, Inc. DBA Legend Analytical
Tucson, AZ · about 45 miles
ZIP codes in Tumacacori-Carmen
Which ZIP codes are in Tumacacori-Carmen: 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 Tumacacori-Carmen
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