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Is Moses Lake, WA tap water safe?

15 utilities serve Moses Lake, 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

3 of the 15 utilities serving Moses Lake have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records: Pelican Point by Cascadia LLC, Parker Spring Acres Water Assoc and Grove Terrace MHP Two LLC.

City of Moses Lake, which serves the most people here, has 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 52.2 ppt, above EPA’s new limit, which takes effect in 2029.

The water from City of Moses Lake is soft to very hard depending on the source, 2.5 to 191 mg/L (0.1 to 11.2 grains per gallon). How Washington’s water compares.

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 Moses Lake’s ZIP codes, from EPA’s estimates.

5 more utilities in Moses Lake

By EPA’s estimate, each serves fewer people in Moses Lake than those above.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in City of Moses Lake’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 Moses Lake

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 Moses Lake, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Soiltest Farm Consultants, Inc. Laboratory

    Moses Lake, WA · under a mile

    Certified for nitrate, minerals and other inorganics

    (509) 765-1622

  • AV Labs, Inc

    Othello, WA · about 24 miles

    Certified for bacteria

    (509) 488-2468

  • Ag Health Laboratories, Inc.

    Sunnyside, WA · about 48 miles

    Certified for bacteria, nitrate

    (509) 836-2020

All 84 certified labs for Washington

ZIP codes in Moses Lake

Which ZIP codes are in Moses Lake: 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 Moses Lake

Towns nearby with a page of their own.

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