💧 ZIP Water Report

Tap water in Columbia, MO — ZIP 65203

3 public water systems serving about 162,204 people. PFAS "forever chemicals" have been detected here.

B
Good
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 65203

City Of Columbia Utilities
PWSID MO3010181 · serves 126,254 · groundwater
0 health-based / 2 total violations (5 yrs)
A
Boone County Cons Pwsd 1
PWSID MO3024055 · serves 24,700 · groundwater
0 health-based / 1 total violations (5 yrs)
A
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

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