Is Woodinville, WA tap water safe?
The short answer
Neither of the 2 utilities serving Woodinville has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records.
Woodinville Water District, 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.
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 Woodinville’s ZIP codes, from EPA’s estimates.
- Open report
Woodinville Water District
Washington · serves 66,699 people · about 6,800 in Woodinville
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Cross Valley Water District
Washington · serves 24,695 people · about 600 in Woodinville
2 results above the health goal. The worst: Arsenic at 4.7 ppb, above the health goal.
No health-based violations since 2016
Water testing near Woodinville
The 3 labs Washington certifies closest to Woodinville, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
OnSite Environmental, Inc.
Redmond, WA · about 5 miles
Certified for lead and copper, metals, minerals and other inorganics
Brooks Applied Labs, LLC
Seattle, WA · about 8 miles
Certified for lead and copper, metals
IEH Analytical Laboratories
Seattle, WA · about 8 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics, PFAS
ZIP codes in Woodinville
Which ZIP codes are in Woodinville: 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 Woodinville
Other towns in King County with a page of their own.
What to do next
- Read Woodinville Water District’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Decide if you want a filter at allA filter for taste or chlorine is a preference, not a need. The standards say what each kind can do.NSF/ANSI standards, decoded
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water