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Is Sonoita, AZ tap water safe?

3 utilities serve Sonoita, by EPA’s records. Here is what EPA’s and CDC’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

2 of the 3 utilities serving Sonoita have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Sonoita Valley (South) Water Company and Casas Arroyo Association Inc.

Sonoita Valley (South) Water Company, which serves the most people here, has 3 results above the health goal. The worst: Lead at 8.0 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 Sonoita’s ZIP codes, from EPA’s estimates.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in Sonoita Valley (South) Water Company’s water, which serves the most people here. Another utility’s report names what handles its own results.

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Every claim, and more filters, in the full report

Water testing near Sonoita

A utility tests the water it sends out. A test of your own tap shows what your pipes add, and on a private well it is the only test there is. It takes a lab Arizona certifies.

The 3 labs Arizona certifies closest to Sonoita, 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 36 miles

    (520) 882-5880

  • Complete Analytical Services, LLC

    Tucson, AZ · about 36 miles

    (520) 884-5811

  • Legend Technical Services of Arizona, Inc. DBA Legend Analytical

    Tucson, AZ · about 36 miles

    (520) 327-1234

All 49 certified labs for Arizona

ZIP codes in Sonoita

Which ZIP codes are in Sonoita: 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 Sonoita

Other towns in Pima County with a page of their own.

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