💧 ZIP Water Report

Tap water in Mattoon, IL — ZIP 61938

2 public water systems serving about 28,400 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 61938

Mattoon
PWSID IL0290250 · serves 19,500 · surface water
0 health-based / 1 total violations (5 yrs) · PFAS up to 6.7 ppt
B
Clear Water Service Corp
PWSID IL0295100 · serves 8,900 · groundwater
0 health-based / 3 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