Is Key Center, WA tap water safe?
The short answer
1 of the 15 utilities serving Key Center has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records: Lake of the Woods Community Club.
Minterbrook, which serves the most people here, has 2 results above the health goal. The worst: Lead at 4.0 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from Minterbrook is soft to moderately hard depending on the source, 37 to 100 mg/L (2.2 to 5.8 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 Key Center’s ZIP codes, from EPA’s estimates.
- Open report
Minterbrook
Washington · serves 5,083 people · about 1,200 in Key Center
2 results above the health goal. The worst: Lead at 4.0 ppb, above the health goal. Hardness: soft to moderately hard depending on the source, 37 to 100 mg/L (2.2 to 5.8 grains per gallon).
No health-based violations since 2016
- Open report
Lake Minterwood
Washington · serves 1,539 people · about 460 in Key Center
1 result above the health goal. The worst: Lead at 2.0 ppb, above the health goal. Hardness: soft to moderately hard depending on the source, 44 to 100 mg/L (2.6 to 5.8 grains per gallon).
No health-based violations since 2016
- Open report
Palmer Lake
Washington · serves 1,924 people · about 230 in Key Center
1 result above the health goal. The worst: Lead at 5.6 ppb, above the health goal. Hardness: moderately hard, typically 70 mg/L (4.1 grains per gallon).
No health-based violations since 2016
- Open report
Cole
Washington · serves 257 people · about 220 in Key Center
2 results above the health goal. The worst: Arsenic at 1.6 ppb, above the health goal. Hardness: soft, typically 49 mg/L (2.9 grains per gallon).
No health-based violations since 2016
- Open report
Lake of the Woods Community Club
Washington · serves 870 people · about 220 in Key Center
1 result above the health goal. The worst: Lead at 2.0 ppb, above the health goal. Hardness: soft to moderately hard depending on the source, 42 to 64 mg/L (2.5 to 3.7 grains per gallon).
1 health-based violation since 2016
- Open report
Lake Holiday Association
Washington · serves 740 people · about 200 in Key Center
Nothing in its records is above a health goal. Hardness: soft to moderately hard depending on the source, 54 to 62 mg/L (3.2 to 3.6 grains per gallon).
No health-based violations since 2016
- Open report
Glen Cove Water Inc.
Washington · serves 223 people · about 180 in Key Center
Nothing in its records is above a health goal. Hardness: soft, 59 mg/L (3.5 grains per gallon).
No health-based violations since 2016
- Open report
Olman Point Tracts Club
Washington · serves 57 people · nearly all in Key Center
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
Greenbriar
Washington · serves 37 people · nearly all in Key Center
1 result above the health goal. The worst: Arsenic at 4.3 ppb, above the health goal. Hardness: soft, 52 mg/L (3 grains per gallon).
No health-based violations since 2016
- Open report
Forest Hills Water System
Washington · serves 140 people · under 100 in Key Center
Nothing in its records is above a health goal. Hardness: moderately hard, typically 85 mg/L (5 grains per gallon).
No health-based violations since 2016
5 more utilities in Key Center
By EPA’s estimate, each serves fewer people in Key Center than those above.
- Rocky Bayserves 34 people · nearly all in Key Center · no health-based violations since 2016
- Minter Beach Estatesserves 116 people · under 100 in Key Center · no health-based violations since 2016
- Jackson Lake Southserves 225 people · under 100 in Key Center · no health-based violations since 2016
- Driftwood Point Water Systemserves 143 people · under 100 in Key Center · no health-based violations since 2016
- Key Ridge Water Systemserves 63 people · under 100 in Key Center · 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 Minterbrook’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 Key Center
The 3 labs Washington certifies closest to Key Center, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Thurston County Health Department Laboratory
Olympia, WA · about 15 miles
Certified for bacteria, nitrate
Water Management Laboratories, Inc.
Tacoma, WA · about 18 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
Olympic Analytical LLC dba Vanguard Laboratory
Olympia, WA · about 20 miles
Certified for bacteria, nitrate
Which ZIP codes are in Key Center: 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 Key Center
Other towns in Pierce County with a page of their own.
What to do next
- Read Minterbrook’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