Is Suquamish, WA tap water safe?
The short answer
None of the 14 utilities serving Suquamish has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records.
Suquamish, which serves the most people here, has 2 results above the health goal. The worst: Arsenic at 1.5 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from Suquamish is moderately hard, typically 83 mg/L (4.9 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 Suquamish’s ZIP codes, from EPA’s estimates.
- Open report
Suquamish
Washington · serves 4,203 people · about 2,600 in Suquamish
2 results above the health goal. The worst: Arsenic at 1.5 ppb, above the health goal. Hardness: moderately hard, typically 83 mg/L (4.9 grains per gallon).
No health-based violations since 2016
- Open report
City of Poulsbo
Washington · serves 18,400 people · about 1,100 in Suquamish
2 results above the health goal. The worst: Arsenic at 5.5 ppb, above the health goal. Hardness: moderately hard, typically 68 mg/L (3.9 grains per gallon).
No health-based violations since 2016
- Open report
Vinland
Washington · serves 4,801 people · about 750 in Suquamish
2 results above the health goal. The worst: Lead at 4.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
Silverdale Water Dist 16
Washington · serves 35,163 people · about 230 in Suquamish
2 results above the health goal. The worst: Arsenic at 7.0 ppb, above the health goal. Hardness: soft to moderately hard depending on the source, 40 to 98 mg/L (2.3 to 5.7 grains per gallon).
No health-based violations since 2016
- Open report
North Perry Ave Water District
Washington · serves 24,402 people · about 160 in Suquamish
2 results above the health goal. The worst: Arsenic at 3.5 ppb, above the health goal. Hardness: moderately hard, typically 94 mg/L (5.5 grains per gallon).
No health-based violations since 2016
- Open report
Miller Bay
Washington · serves 1,072 people · about 120 in Suquamish
Nothing in its records is above a health goal. Hardness: moderately hard, typically 114 mg/L (6.6 grains per gallon).
No health-based violations since 2016
- Open report
Mainland View Manor
Washington · serves 143 people · under 100 in Suquamish
1 result above the health goal. The worst: Arsenic at 4.0 ppb, above the health goal. Hardness: moderately hard, 90 mg/L (5.3 grains per gallon).
No health-based violations since 2016
- Open report
North Peninsula
Washington · serves 16,449 people · under 100 in Suquamish
2 results above the health goal. The worst: Arsenic at 3.0 ppb, above the health goal. Hardness: soft to moderately hard depending on the source, 60 to 110 mg/L (3.5 to 6.4 grains per gallon).
No health-based violations since 2016
- Open report
Island Lake
Washington · serves 883 people · under 100 in Suquamish
2 results above the health goal. The worst: Lead at 7.0 ppb, above the health goal. Hardness: soft, 40 mg/L (2.3 grains per gallon).
No health-based violations since 2016
- Open report
Keyport Water
Washington · serves 1,202 people · under 100 in Suquamish
2 results above the health goal. The worst: Arsenic at 3.0 ppb, above the health goal. Hardness: moderately hard, typically 76 mg/L (4.4 grains per gallon).
No health-based violations since 2016
4 more utilities in Suquamish
By EPA’s estimate, each serves fewer people in Suquamish than those above.
- Agate Westserves 100 people · under 100 in Suquamish · no health-based violations since 2016
- Sandy Hook Park Community Clubserves 593 people · under 100 in Suquamish · no health-based violations since 2016
- Johansonserves 148 people · under 100 in Suquamish · no health-based violations since 2016
- Viewside Communityserves 118 people · under 100 in Suquamish · no health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Suquamish’s water, which serves the most people here. Another utility’s report names what handles its own results.
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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 Suquamish
The 3 labs Washington certifies closest to Suquamish, 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 2 miles
Certified for bacteria, nitrate, minerals and other inorganics
Eurofins EPK Built Environment Testing, LLC
Seattle, WA · about 10 miles
Certified for bacteria, asbestos
Alliance Technical Group, LLC-Seattle
Seattle, WA · about 13 miles
Certified for bacteria, lead and copper, metals
Which ZIP codes are in Suquamish: 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 Suquamish
Other towns in Kitsap County with a page of their own.
What to do next
- Read Suquamish’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