Tap water in Tacoma, WA — ZIP 98446
3 public water systems serving about 499,876 people. PFAS "forever chemicals" have been detected here.
C
Fair
PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5
testing. Levels and the 2024 federal limits are shown per system below.
Water systems serving 98446
Tacoma Water Division City Of
PWSID WA5386800 · serves 446,245 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 5.1 ppt
Spanaway Water Company
PWSID WA5382850 · serves 34,506 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 8.3 ppt — above federal limit
Summit Water & Supply Co
PWSID WA5385050 · serves 19,125 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 3.1 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology