PlainWater
States → Wisconsin

POTOSI WATERWORKS

PWS ID: WI1220117 · POTOSI, Wisconsin 53820-0045

Population Served
718
Total Violations
83
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
265
County
Grant
School/Daycare
No
MCL Violations
4
Monitoring Violations
73
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 7 1997
Lead and Copper Rule MR 6 2024
Total Haloacetic Acids (HAA5) MR 5 2013
TTHM MR 5 2013
Gross Alpha, Excl. Radon and U MR 4 2018
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 2024
Revised Total Coliform Rule MON 4 2018
Coliform (TCR) MCL 4 1996
DICHLOROMETHANE MR 2 1994
Vinyl chloride MR 2 1994
Carbon tetrachloride MR 2 1994
Trichloroethylene MR 2 1994
o-Dichlorobenzene MR 2 1994
trans-1,2-Dichloroethylene MR 2 1994
CHLOROBENZENE MR 2 1994
Ethylbenzene MR 2 1994
Styrene MR 2 1994
1,1-Dichloroethylene MR 2 1994
1,2-Dichloroethane MR 2 1994
1,1,1-Trichloroethane MR 2 1994
1,2-Dichloropropane MR 2 1994
Xylenes, Total MR 2 1994
Tetrachloroethylene MR 2 1994
1,2,4-Trichlorobenzene MR 2 1994
p-Dichlorobenzene MR 2 1994
Benzene MR 2 1994
1,1,2-Trichloroethane MR 2 1994
cis-1,2-Dichloroethylene MR 2 1994
Toluene MR 2 1994
Consumer Confidence Rule Other 1 2013
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.