Is Bainbridge Island, WA tap water safe?
The short answer
1 of the 13 utilities serving Bainbridge Island has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records: Meadowmeer.
City of Bainbridge Island, which serves the most people here, has 2 results above the health goal. The worst: Arsenic at 4.3 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from City of Bainbridge Island is soft to moderately hard depending on the source, 27 to 63 mg/L (1.6 to 3.7 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 Bainbridge Island’s ZIP codes, from EPA’s estimates.
- Open report
City of Bainbridge Island
Washington · serves 13,491 people · about 10,400 in Bainbridge Island
2 results above the health goal. The worst: Arsenic at 4.3 ppb, above the health goal. Hardness: soft to moderately hard depending on the source, 27 to 63 mg/L (1.6 to 3.7 grains per gallon).
No health-based violations since 2016
- Open report
North Bainbridge Water Co
Washington · serves 5,490 people · nearly all in Bainbridge Island
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, 39 to 92 mg/L (2.3 to 5.4 grains per gallon).
No health-based violations since 2016
- Open report
South Bainbridge
Washington · serves 4,414 people · about 3,800 in Bainbridge Island
1 result above the health goal. The worst: Lead at 3.0 ppb, above the health goal. Hardness: moderately hard to very hard depending on the source, 88 to 210 mg/L (5.1 to 12.3 grains per gallon).
No health-based violations since 2016
- Open report
Meadowmeer
Washington · serves 1,157 people · about 900 in Bainbridge Island
1 result above the action level. The worst: Lead at 16 ppb, above the action level. Hardness: moderately hard, 95 mg/L (5.6 grains per gallon).
1 health-based violation since 2016
- Open report
Rockaway Beach Water
Washington · serves 175 people · nearly all in Bainbridge Island
2 results above the health goal. The worst: Arsenic at 2.6 ppb, above the health goal. Hardness: moderately hard, 88 mg/L (5.1 grains per gallon).
No health-based violations since 2016
- Open report
Port Madison Water Company
Washington · serves 233 people · nearly all in Bainbridge Island
1 result above the health goal. The worst: Lead at 1.7 ppb, above the health goal. Hardness: moderately hard, typically 101 mg/L (5.9 grains per gallon).
No health-based violations since 2016
- Open report
Emerald Heights
Washington · serves 251 people · nearly all in Bainbridge Island
1 result above the health goal. The worst: Lead at 4.0 ppb, above the health goal. Hardness: moderately hard, 82 mg/L (4.8 grains per gallon).
No health-based violations since 2016
- Open report
Graham Place
Washington · serves 41 people · nearly all in Bainbridge Island
2 results above the health goal. The worst: Arsenic at 1.8 ppb, above the health goal. Hardness: moderately hard, typically 81 mg/L (4.7 grains per gallon).
No health-based violations since 2016
- Open report
Islandwood Estates
Washington · serves 28 people · nearly all in Bainbridge Island
1 result above the health goal. The worst: Lead at 0.6 ppb, above the health goal. Hardness: moderately hard, typically 73 mg/L (4.3 grains per gallon).
No health-based violations since 2016
- Open report
Bucklin
Washington · serves 402 people · about 140 in Bainbridge Island
2 results above the health goal. The worst: Arsenic at 4.5 ppb, above the health goal. Hardness: moderately hard, 77 mg/L (4.5 grains per gallon).
No health-based violations since 2016
3 more utilities in Bainbridge Island
By EPA’s estimate, each serves fewer people in Bainbridge Island than those above.
- Harbor Crestserves 53 people · nearly all in Bainbridge Island · no health-based violations since 2016
- Rose Avenue Water Associationserves 53 people · nearly all in Bainbridge Island · no health-based violations since 2016
- Ravens Reachserves 47 people · nearly all in Bainbridge Island · 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 City of Bainbridge Island’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 Bainbridge Island
The 3 labs Washington certifies closest to Bainbridge Island, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Eurofins EPK Built Environment Testing, LLC
Seattle, WA · about 8 miles
Certified for bacteria, asbestos
Spectra Laboratories - Kitsap, LLC
Poulsbo, WA · about 9 miles
Certified for bacteria, nitrate, minerals and other inorganics
MCL Food Testing
Seattle, WA · about 9 miles
Certified for bacteria
ZIP codes in Bainbridge Island
Which ZIP codes are in Bainbridge Island: 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 Bainbridge Island
Other towns in Kitsap County with a page of their own.
What to do next
- Read City of Bainbridge Island’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