Is Snoqualmie, WA tap water safe?
The short answer
None of the 3 utilities serving Snoqualmie has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records.
Snoqualmie Water, which serves the most people here, has 2 results above the health goal. The worst: Arsenic at 5.6 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from Snoqualmie Water is soft to moderately hard depending on the source, 34 to 93 mg/L (2 to 5.4 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 Snoqualmie’s ZIP codes, from EPA’s estimates.
- Open report
Snoqualmie Water
Washington · serves 20,222 people · about 1,400 in Snoqualmie
2 results above the health goal. The worst: Arsenic at 5.6 ppb, above the health goal. Hardness: soft to moderately hard depending on the source, 34 to 93 mg/L (2 to 5.4 grains per gallon).
No health-based violations since 2016
- Open report
Fall City Water Dist. #127
Washington · serves 2,987 people · about 120 in Snoqualmie
2 results above the health goal. The worst: Arsenic at 5.3 ppb, above the health goal. Hardness: moderately hard, 111 mg/L (6.5 grains per gallon).
No health-based violations since 2016
- Open report
Echo Glen Childrens Center
Washington · serves 430 people · based in Snoqualmie
2 results above the health goal. The worst: Arsenic at 2.4 ppb, above the health goal.
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 Snoqualmie Water’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 Snoqualmie
The 3 labs Washington certifies closest to Snoqualmie, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Aqua Test, Incorporated
Maple Valley, WA · about 14 miles
Certified for bacteria, nitrate
OnSite Environmental, Inc.
Redmond, WA · about 17 miles
Certified for lead and copper, metals, minerals and other inorganics
AmTest Laboratories
Renton, WA · about 22 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, disinfection byproducts
ZIP codes in Snoqualmie
Which ZIP codes are in Snoqualmie: 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 Snoqualmie
Other towns in King County with a page of their own.
What to do next
- Read Snoqualmie Water’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