Is College Place, WA tap water safe?
The short answer
1 of the 6 utilities serving College Place has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records: Walla Walla Water Division.
College Place Water Dept, which serves the most people here, has 2 results above the health goal. The worst: Lead at 2.1 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from College Place Water Dept is soft to moderately hard depending on the source, 60 to 77 mg/L (3.5 to 4.5 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 College Place’s ZIP codes, from EPA’s estimates.
- Open report
College Place Water Dept
Washington · serves 8,147 people · about 6,700 in College Place
2 results above the health goal. The worst: Lead at 2.1 ppb, above the health goal. Hardness: soft to moderately hard depending on the source, 60 to 77 mg/L (3.5 to 4.5 grains per gallon).
No health-based violations since 2016
- Open report
Consolidated Irrigation Dist 14
Washington · serves 1,555 people · about 910 in College Place
Nothing in its records is above a health goal. Hardness: soft to moderately hard depending on the source, 49 to 76 mg/L (2.8 to 4.4 grains per gallon).
No health-based violations since 2016
- Open report
Walla Walla University
Washington · serves 1,273 people · about 650 in College Place
Nothing in its records is above a health goal. Hardness: moderately hard, 64 mg/L (3.7 grains per gallon).
No health-based violations since 2016
- Open report
Green Tank Irr District 11
Washington · serves 553 people · about 350 in College Place
1 result above the health goal. The worst: Lead at 0.6 ppb, above the health goal. Hardness: soft, typically 59 mg/L (3.4 grains per gallon).
No health-based violations since 2016
- Open report
Walla Walla Water Division
Washington · serves 42,959 people · under 100 in College Place
1 result above the health goal. The worst: Lead at 4.4 ppb, above the health goal. Hardness: soft to moderately hard depending on the source, 28 to 70 mg/L (1.6 to 4.1 grains per gallon).
36 health-based violations since 2016
- Open report
Artesian Water District 8
Washington · serves 302 people · based in College Place
1 result above the health goal. The worst: Lead at 1.5 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 College Place Water Dept’s water, which serves the most people here. Another utility’s report names what handles its own results.
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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: Lead, Arsenic
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: Lead, Arsenic
Water testing near College Place
The 3 labs Washington certifies closest to College Place, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Walla Walla Regional Water Testing Services
College Place, WA · about 3 miles
Certified for bacteria, nitrate
Matrix Sciences International Inc. dba KTL
Pasco, WA · about 36 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics
RJ Lee Group, Inc. Columbia Basin Analytical Laboratories
Pasco, WA · about 36 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics
Which ZIP codes are in College Place: 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 College Place
Towns nearby with a page of their own.
What to do next
- Read College Place Water Dept’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