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Is Sun Valley, AZ tap water safe?

2 utilities serve Sun Valley, 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 2 utilities serving Sun Valley have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: City of Holbrook and Sun Valley Utilities.

City of Holbrook, which serves the most people here, has 1 result above EPA’s health benchmark. The worst: Lithium at 18 ppb, above EPA’s health benchmark. A health benchmark is a level EPA screens with, not a legal limit.

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 Sun Valley’s ZIP codes, from EPA’s estimates.

Water testing near Sun Valley

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 2 labs Arizona certifies closest to Sun Valley, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

All 49 certified labs for Arizona

ZIP codes in Sun Valley

Which ZIP codes are in Sun Valley: 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 Sun Valley

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

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