Is Colville, WA tap water safe?
The short answer
2 of the 6 utilities serving Colville have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records: Country Villa Mobile Park and Arden Hills Water System.
Colville Water Department, which serves the most people here, has 2 results above the health goal. The worst: Arsenic at 1.0 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from Colville Water Department is very hard, typically 270 mg/L (15.8 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 Colville’s ZIP codes, from EPA’s estimates.
- Open report
Colville Water Department
Washington · serves 4,945 people · under 100 in Colville
2 results above the health goal. The worst: Arsenic at 1.0 ppb, above the health goal. Hardness: very hard, typically 270 mg/L (15.8 grains per gallon).
No health-based violations since 2016
- Open report
Panorama Mobile Home Park
Washington · serves 150 people · under 100 in Colville
1 result above the health goal. The worst: Lead at 0.6 ppb, above the health goal. Hardness: very hard, 371 mg/L (21.7 grains per gallon).
No health-based violations since 2016
- Open report
Country Villa Mobile Park
Washington · serves 162 people · based in Colville
1 result above the legal limit, 1 result above the limit’s level with no violation recorded and 2 results above the health goal. The worst: Arsenic at 10.3 ppb, above the legal limit. Hardness: very hard, typically 304 mg/L (17.8 grains per gallon).
1 health-based violation since 2016
- Open report
Arden Hills Water System
Washington · serves 80 people · based in Colville
2 results above the health goal. The worst: Uranium at 20.3 ppb, above the health goal.
1 health-based violation since 2016
- Open report
Evans Water System
Washington · serves 47 people · based in Colville
1 result above the health goal. The worst: Arsenic at 3.8 ppb, above the health goal.
No health-based violations since 2016
- Open report
Williams Lake Road Subdivision
Washington · serves 40 people · based in Colville
2 results above the health goal. The worst: Uranium at 8.8 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 Colville Water Department’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 Colville
The 3 labs Washington certifies closest to Colville, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Lincoln County Environmental Health Lab
Davenport, WA · about 70 miles
Certified for bacteria
Anatek Labs, Inc - Spokane
Spokane, WA · about 71 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
Tshimakain Creek Laboratories
Spokane Valley, WA · about 71 miles
Certified for bacteria, nitrate, minerals and other inorganics
ZIP codes in Colville
Which ZIP codes are in Colville: 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 Colville
Towns nearby with a page of their own.
What to do next
- Read Colville Water Department’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