PlainWater

WILLIAMSFIELD

PWS ID: IL0950650 · WILLIAMSFIELD, Illinois 61489

Population Served
575
Total Violations
138
Health-Based Violations
20
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
275
County
Knox
School/Daycare
No
MCL Violations
17
Monitoring Violations
84
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Fluoride MCL 13 1985
Public Notice Other 8 2006
Nitrate MR 8 2004
Coliform (TCR) MR 6 1999
Xylenes, Total MR 4 1992
o-Dichlorobenzene MR 4 1992
p-Dichlorobenzene MR 4 1992
1,1-Dichloroethylene MR 4 1992
trans-1,2-Dichloroethylene MR 4 1992
1,1,1-Trichloroethane MR 4 1992
Carbon tetrachloride MR 4 1992
1,2-Dichloropropane MR 4 1992
Trichloroethylene MR 4 1992
Tetrachloroethylene MR 4 1992
CHLOROBENZENE MR 4 1992
Toluene MR 4 1992
Coliform (TCR) MCL 4 1998
1,2-Dichloroethane MR 4 1992
Ethylbenzene MR 4 1992
Styrene MR 4 1992
Benzene MR 4 1992
Consumer Confidence Rule Other 4 2004
cis-1,2-Dichloroethylene MR 4 1992
LEAD AND COPPER RULE REVISIONS TT 3 2024
Gross Alpha, Excl. Radon and U MR 1 1977
Total Haloacetic Acids (HAA5) MR 1 2025
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.