Is Alderton, WA tap water safe?
The short answer
None of the 11 utilities serving Alderton has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Washington’s records.
City of Puyallup, which serves the most people here, has 2 results above the health goal. The worst: Arsenic at 6.4 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from City of Puyallup is soft to moderately hard depending on the source, 48 to 106 mg/L (2.8 to 6.2 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 Alderton’s ZIP codes, from EPA’s estimates.
- Open report
City of Puyallup
Washington · serves 94,520 people · about 2,700 in Alderton
2 results above the health goal. The worst: Arsenic at 6.4 ppb, above the health goal. Hardness: soft to moderately hard depending on the source, 48 to 106 mg/L (2.8 to 6.2 grains per gallon).
No health-based violations since 2016
- Open report
City of Sumner
Washington · serves 16,438 people · about 2,300 in Alderton
2 results above the health goal. The worst: Arsenic at 3.0 ppb, above the health goal. Hardness: moderately hard, typically 98 mg/L (5.7 grains per gallon).
No health-based violations since 2016
- Open report
City of Tacoma Water Division
Washington · serves 446,245 people · about 2,200 in Alderton
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
Firgrove Mutual Inc
Washington · serves 36,168 people · about 1,100 in Alderton
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
Mountain View - Edgewood Water Co
Washington · serves 9,680 people · about 1,000 in Alderton
2 results above the health goal. The worst: Lead at 4.0 ppb, above the health goal. Hardness: moderately hard, typically 102 mg/L (6 grains per gallon).
No health-based violations since 2016
- Open report
Bonney Lake Water Department City
Washington · serves 43,371 people · about 730 in Alderton
1 result above the health goal. The worst: Lead at 2.4 ppb, above the health goal. Hardness: moderately hard, typically 114 mg/L (6.7 grains per gallon).
No health-based violations since 2016
- Open report
Valley Water System
Washington · serves 2,259 people · about 360 in Alderton
1 result above the health goal. The worst: Arsenic at 7.4 ppb, above the health goal. Hardness: moderately hard, 70 mg/L (4.1 grains per gallon).
No health-based violations since 2016
- Open report
Fruitland Mutual Water Company
Washington · serves 15,313 people · about 140 in Alderton
3 results above the health goal. The worst: PFOA at 4.0 ppt, above the health goal. Hardness: moderately hard, typically 103 mg/L (6 grains per gallon).
No health-based violations since 2016
- Open report
Alderwood Estates
Washington · serves 635 people · under 100 in Alderton
1 result above the health goal. The worst: Arsenic at 2.1 ppb, above the health goal. Hardness: soft, 42 mg/L (2.5 grains per gallon).
No health-based violations since 2016
- Open report
City of Milton
Washington · serves 8,078 people · under 100 in Alderton
1 result above the health goal. The worst: Lead at 7.4 ppb, above the health goal. Hardness: hard, typically 135 mg/L (7.9 grains per gallon).
No health-based violations since 2016
1 more utility in Alderton
By EPA’s estimate, each serves fewer people in Alderton than those above.
- Tapps Island Water Systemserves 1,501 people · under 100 in Alderton · 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 City of Puyallup’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 Alderton
The 3 labs Washington certifies closest to Alderton, 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 9 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
AmTest Laboratories
Renton, WA · about 20 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, disinfection byproducts
Aqua Test, Incorporated
Maple Valley, WA · about 21 miles
Certified for bacteria, nitrate
Which ZIP codes are in Alderton: 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 Alderton
Other towns in Pierce County with a page of their own.
What to do next
- Read City of Puyallup’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