Is Frederickson, WA tap water safe?
The short answer
None of the 11 utilities serving Frederickson has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records.
Southwood, which serves the most people here, has 2 results above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOS at 8.9 ppt, above EPA’s new limit, which takes effect in 2029.
The water from Southwood is soft to moderately hard depending on the source, 30 to 101 mg/L (1.8 to 5.9 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 Frederickson’s ZIP codes, from EPA’s estimates.
- Open report
Southwood
Washington · serves 64,155 people · about 7,700 in Frederickson
2 results above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOS at 8.9 ppt, above EPA’s new limit, which takes effect in 2029. Hardness: soft to moderately hard depending on the source, 30 to 101 mg/L (1.8 to 5.9 grains per gallon).
No health-based violations since 2016
- Open report
Firgrove Mutual Inc
Washington · serves 36,168 people · about 6,200 in Frederickson
2 results above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOS at 8.6 ppt, above EPA’s new limit, which takes effect in 2029. Hardness: soft to moderately hard depending on the source, 44 to 102 mg/L (2.6 to 6 grains per gallon).
No health-based violations since 2016
- Open report
City of Tacoma Water Division
Washington · serves 446,245 people · about 3,600 in Frederickson
1 result above the health goal. The worst: Arsenic at 0.56 ppb, above the health goal. Hardness: soft to very hard depending on the source, 12 to 197 mg/L (0.7 to 11.5 grains per gallon).
No health-based violations since 2016
- Open report
Spanaway Water Company
Washington · serves 34,506 people · about 3,200 in Frederickson
2 results above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOS at 8.3 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Summit Water & Supply Co
Washington · serves 19,125 people · about 1,400 in Frederickson
2 results above the health goal. The worst: Lead at 2.3 ppb, above the health goal. Hardness: moderately hard to hard depending on the source, 64 to 124 mg/L (3.7 to 7.3 grains per gallon).
No health-based violations since 2016
- Open report
Parkland Light & Water Company
Washington · serves 33,775 people · about 160 in Frederickson
2 results above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOS at 13.8 ppt, above EPA’s new limit, which takes effect in 2029. Hardness: soft to moderately hard depending on the source, 48 to 83 mg/L (2.8 to 4.9 grains per gallon).
No health-based violations since 2016
- Open report
Western Ranchettes Inc.
Washington · serves 250 people · about 120 in Frederickson
1 result above the health goal. The worst: Lead at 2.6 ppb, above the health goal. Hardness: moderately hard, typically 90 mg/L (5.2 grains per gallon).
No health-based violations since 2016
- Open report
Nelson Ridge
Washington · serves 232 people · under 100 in Frederickson
1 result above the health goal. The worst: Lead at 7.2 ppb, above the health goal. Hardness: moderately hard, typically 82 mg/L (4.8 grains per gallon).
No health-based violations since 2016
- Open report
Crescent Park 355
Washington · serves 550 people · under 100 in Frederickson
1 result above the health goal. The worst: Lead at 3.3 ppb, above the health goal. Hardness: moderately hard, 94 mg/L (5.5 grains per gallon).
No health-based violations since 2016
- Open report
Spanaway 192nd 669
Washington · serves 183 people · under 100 in Frederickson
1 result above the health goal. The worst: Lead at 2.0 ppb, above the health goal. Hardness: moderately hard, 84 mg/L (4.9 grains per gallon).
No health-based violations since 2016
1 more utility in Frederickson
By EPA’s estimate, each serves fewer people in Frederickson than those above.
- Bethel Water Coserves 270 people · under 100 in Frederickson · 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 Southwood’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: PFOS, PFOA, 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: PFOS, PFOA, 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: PFOS, PFOA, Arsenic, Lead
Water testing near Frederickson
The 3 labs Washington certifies closest to Frederickson, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Water Management Laboratories, Inc.
Tacoma, WA · about 8 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
Thurston County Health Department Laboratory
Olympia, WA · about 24 miles
Certified for bacteria, nitrate
AmTest Laboratories
Renton, WA · about 27 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, disinfection byproducts
Which ZIP codes are in Frederickson: 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 Frederickson
Other towns in Pierce County with a page of their own.
What to do next
- Read Southwood’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOSRanked by certification and what they cost over five years.The best water filters for PFAS, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water