Is Hansville, WA tap water safe?
The short answer
North Peninsula serves Hansville. In EPA’s and Washington’s records it has 2 results above the health goal, and no health-based violation since 2016.
The worst: Arsenic at 3.0 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from North Peninsula is soft to moderately hard depending on the source, 60 to 110 mg/L (3.5 to 6.4 grains per gallon). How Washington’s water compares.
Some homes in a town are on private wells or a small system of their own. The name on your water bill tells you which is yours.
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in North Peninsula’s water.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic, Lead
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic, Lead
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic, Lead
Water testing near Hansville
The 3 labs Washington certifies closest to Hansville, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Spectra Laboratories - Kitsap, LLC
Poulsbo, WA · about 9 miles
Certified for bacteria, nitrate, minerals and other inorganics
Eurofins EPK Built Environment Testing, LLC
Seattle, WA · about 15 miles
Certified for bacteria, asbestos
Brooks Applied Labs, LLC
Seattle, WA · about 16 miles
Certified for lead and copper, metals
Which ZIP codes are in Hansville: 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 Hansville
Towns nearby with a page of their own.
What to do next
- Read North Peninsula’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water