💧 ZIP Water Report

Tap water in Washington, MO — ZIP 63090

3 public water systems serving about 28,818 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 63090

Washington Pws
PWSID MO6010838 · serves 14,068 · groundwater
1 health-based / 5 total violations (5 yrs)
C
Thomas Hill Pwsd 1
PWSID MO2024504 · serves 11,250 · surface water
0 health-based / 3 total violations (5 yrs) · PFAS up to 9.3 ppt
B
Franklin County Pwsd 1
PWSID MO6024211 · serves 3,500 · groundwater
0 health-based / 2 total violations (5 yrs)
A

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology