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Is Mossyrock, WA tap water safe?

3 utilities serve Mossyrock, by EPA’s records. Here is what EPA’s and Washington’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 Mossyrock have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records: Lewis Co Water Sewer Dist #6 and Lakeview Terrace.

City of Mossyrock Public Utility, which serves the most people here, has 2 results above the health goal. The worst: Lead at 2.0 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 Mossyrock’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 City of Mossyrock Public Utility’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 Mossyrock

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 Washington certifies.

The 3 labs Washington certifies closest to Mossyrock, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • ALS Environmental - Kelso

    Kelso, WA · about 26 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS, radioactivity

    (360) 577-7222

  • Lewis County Environmental Health Laboratory

    Chehalis, WA · about 32 miles

    Certified for bacteria, nitrate

    (360) 740-1237

  • Thurston County Health Department Laboratory

    Olympia, WA · about 50 miles

    Certified for bacteria, nitrate

    (360) 867-2631

All 84 certified labs for Washington

ZIP codes in Mossyrock

Which ZIP codes are in Mossyrock: 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: Washington State Department of Ecology, Lab Accreditation Program, environmental laboratories accredited for drinking water analyses; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Mossyrock

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

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