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Is Siloam Springs, AR tap water safe?

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

Matched to your utility using EPA records.

The short answer

3 of the 3 utilities serving Siloam Springs have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s records: Siloam Springs Waterworks, Lincoln Waterworks and Gentry Waterworks.

Siloam Springs Waterworks, which serves the most people here, has 1 result above the health goal. The worst: Lead at 1.0 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 Siloam Springs’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 Siloam Springs Waterworks’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 Siloam Springs

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 Arkansas certifies.

TapBuff hasn’t read Arkansas’s list of certified labs yet. The national page links every state’s own list.

Certified labs, state by state

ZIP codes in Siloam Springs

Which ZIP codes are in Siloam Springs: 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.

Near Siloam Springs

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

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