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Is Coupeville, WA tap water safe?

15 utilities serve Coupeville, 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 Coupeville have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records: Sierra Country Club, Sky Meadows Community Assoc. and Georgetown Water Association.

Town of Coupeville, which serves the most people here, has 1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOA at 9.8 ppt, above EPA’s new limit, which takes effect in 2029.

The water from Town of Coupeville is very hard, 300 mg/L (17.5 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 Coupeville’s ZIP codes, from EPA’s estimates.

5 more utilities in Coupeville

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

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in Town of Coupeville’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 Coupeville

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

  • Precision Analytical Laboratories, LLC

    Everett, WA · about 24 miles

    Certified for lead and copper, metals, minerals and other inorganics

    (425) 740-4597

  • Eurofins DW and WW West, Washington Laboratory

    Burlington, WA · about 25 miles

    Certified for bacteria, nitrate, minerals and other inorganics, disinfection byproducts

    (360) 757-1400

  • Everett Environmental Laboratory

    Everett, WA · about 27 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics

    (425) 257-8230

All 84 certified labs for Washington

ZIP codes in Coupeville

Which ZIP codes are in Coupeville: 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 Coupeville

Towns nearby with a page of their own.

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