Skip to content
TapBuff

Is Union, WA tap water safe?

6 utilities serve Union, 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

None of the 6 utilities serving Union has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records.

Alderbrook Water Co, which serves the most people here, has nothing above a health goal in EPA’s and Washington’s records. That data covers what its report lists, not everything.

The water from Alderbrook Water Co is soft to moderately hard depending on the source, 43 to 69 mg/L (2.5 to 4 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 Union’s ZIP codes, from EPA’s estimates.

Water testing near Union

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

  • Olympic Analytical LLC dba Vanguard Laboratory

    Olympia, WA · about 17 miles

    Certified for bacteria, nitrate

    (360) 967-7010

  • Thurston County Health Department Laboratory

    Olympia, WA · about 18 miles

    Certified for bacteria, nitrate

    (360) 867-2631

  • Grays Harbor County Water Testing Lab

    Montesano, WA · about 27 miles

    Certified for bacteria, nitrate

    (360) 249-4413

All 84 certified labs for Washington

ZIP codes in Union

Which ZIP codes are in Union: 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.