Is Friday Harbor, WA tap water safe?
The short answer
3 of the 15 utilities serving Friday Harbor have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records: Cape San Juan Water District, Portland Fair Estates and Fairway Number Three Water.
Town of Friday Harbor, which serves the most people here, has 1 result above the health goal. The worst: Lead at 1.6 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from Town of Friday Harbor is moderately hard, 73 mg/L (4.3 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 Friday Harbor’s ZIP codes, from EPA’s estimates.
- Open report
Town of Friday Harbor
Washington · serves 3,543 people · about 120 in Friday Harbor
1 result above the health goal. The worst: Lead at 1.6 ppb, above the health goal. Hardness: moderately hard, 73 mg/L (4.3 grains per gallon).
No health-based violations since 2016
- Open report
Roche Harbor Water System Inc
Washington · serves 2,091 people · under 100 in Friday Harbor
1 result above the health goal. The worst: Lead at 3.3 ppb, above the health goal. Hardness: moderately hard, 80 mg/L (4.7 grains per gallon).
No health-based violations since 2016
- Open report
Cape San Juan Water District
Washington · serves 164 people · under 100 in Friday Harbor
1 result above the legal limit and 2 results above the health goal. The worst: Total trihalomethanes (TTHM) at 118 ppb, above the legal limit.
13 health-based violations since 2016
- Open report
Oaks the Mobile Home Park
Washington · serves 143 people · under 100 in Friday Harbor
1 result above the health goal. The worst: Lead at 1.1 ppb, above the health goal. Hardness: very hard, 200 mg/L (11.7 grains per gallon).
No health-based violations since 2016
- Open report
Portland Fair Estates
Washington · serves 130 people · under 100 in Friday Harbor
1 result above the legal limit and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 101 ppb, above the legal limit. Hardness: moderately hard, 113 mg/L (6.6 grains per gallon).
9 health-based violations since 2016
- Open report
University Heights
Washington · serves 76 people · under 100 in Friday Harbor
1 result above the health goal. The worst: Lead at 1.7 ppb, above the health goal. Hardness: hard, 179 mg/L (10.5 grains per gallon).
No health-based violations since 2016
- Open report
San Juan Ranchos
Washington · serves 35 people · under 100 in Friday Harbor
1 result above the health goal. The worst: Lead at 1.5 ppb, above the health goal. Hardness: very hard, 210 mg/L (12.3 grains per gallon).
No health-based violations since 2016
- Open report
Limestone Point Water Company Inc
Washington · serves 81 people · under 100 in Friday Harbor
1 result above the limit’s level with no violation recorded and 1 result above the health goal. The worst: Arsenic at 25.1 ppb, above the limit’s level, no violation. Hardness: hard to very hard depending on the source, 143 to 197 mg/L (8.4 to 11.5 grains per gallon).
No health-based violations since 2016
- Open report
Hannah Heights Owners Association
Washington · serves 66 people · under 100 in Friday Harbor
Nothing in its records is above a health goal. Hardness: hard to very hard depending on the source, 127 to 260 mg/L (7.4 to 15.2 grains per gallon).
No health-based violations since 2016
- Open report
Eagle Cove Water Association
Washington · serves 65 people · under 100 in Friday Harbor
2 results above the health goal. The worst: Arsenic at 2.9 ppb, above the health goal. Hardness: very hard, 280 mg/L (16.4 grains per gallon).
No health-based violations since 2016
5 more utilities in Friday Harbor
By EPA’s estimate, each serves fewer people in Friday Harbor than those above.
- Mitchell Point Water Assnserves 81 people · under 100 in Friday Harbor · no health-based violations since 2016
- Smugglers Cove Water Systemserves 27 people · under 100 in Friday Harbor · no health-based violations since 2016
- Mineral Heights Associationserves 46 people · under 100 in Friday Harbor · no health-based violations since 2016
- Cattle Point Water Districtserves 63 people · under 100 in Friday Harbor · no health-based violations since 2016
- Fairway Number Three Waterserves 39 people · under 100 in Friday Harbor · 10 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 Town of Friday Harbor’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Brita Tahoe Pitcher with Elite Filter (OB60, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
- IAPMO listing:NSF/ANSI 53checked Oct. 13, 2026
Certified for: Lead
Brita Everyday Pitcher with Elite Filter (OB46, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
Certified for: Lead
PUR PLUS 11-Cup Pitcher (PPT111W)
Pitcher
- NSF listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
Certified for: Lead
Water testing near Friday Harbor
The 3 labs Washington certifies closest to Friday Harbor, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Exact Scientific Services, Inc.
Ferndale, WA · about 30 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Eurofins DW and WW West, Washington Laboratory
Burlington, WA · about 35 miles
Certified for bacteria, nitrate, minerals and other inorganics, disinfection byproducts
Clallam County Environmental Laboratory
Port Angeles, WA · about 46 miles
Certified for bacteria, nitrate
ZIP codes in Friday Harbor
Which ZIP codes are in Friday Harbor: 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 Friday Harbor
Towns nearby with a page of their own.
What to do next
- Read Town of Friday Harbor’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for LeadRanked by certification and what they cost over five years.The best water filters for lead, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water