💧 ZIP Water Report

Tap water in Grayson, KY — ZIP 41143

4 public water systems serving about 79,793 people. PFAS "forever chemicals" have been detected here.

F
Failing
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 41143

Ashland Water Works
PWSID KY0100011 · serves 44,402 · surface water
0 health-based / 0 total violations (5 yrs) · PFAS up to 24 ppt
A
Big Sandy Water District
PWSID KY0100944 · serves 13,044 · surface water
4 health-based / 4 total violations (5 yrs) · PFAS up to 25 ppt — above federal limit
F
Rattlesnake Ridge Water District
PWSID KY0220555 · serves 11,397 · surface water
1 health-based / 2 total violations (5 yrs)
B
Grayson Utility Commission
PWSID KY0220164 · serves 10,950 · surface water
0 health-based / 0 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