PlainWater
States → Wisconsin

TENNYSON WATERWORKS

PWS ID: WI1220120 · POTOSI, Wisconsin 53820

Population Served
367
Total Violations
103
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
135
County
Grant
School/Daycare
No
MCL Violations
0
Monitoring Violations
97
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 20 2010
Lead and Copper Rule MR 15 2025
Chlorine MR 4 2010
Total Haloacetic Acids (HAA5) MR 4 2013
TTHM MR 4 2013
Revised Total Coliform Rule MON 4 2018
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 2024
Gross Alpha, Excl. Radon and U MR 4 2018
Consumer Confidence Rule Other 2 2013
o-Dichlorobenzene MR 2 1994
Vinyl chloride MR 2 1994
1,1-Dichloroethylene MR 2 1994
Carbon tetrachloride MR 2 1994
Trichloroethylene MR 2 1994
CHLOROBENZENE MR 2 1994
Benzene MR 2 1994
Ethylbenzene MR 2 1994
trans-1,2-Dichloroethylene MR 2 1994
1,1,2-Trichloroethane MR 2 1994
p-Dichlorobenzene MR 2 1994
1,2-Dichloroethane MR 2 1994
DICHLOROMETHANE MR 2 1994
1,2-Dichloropropane MR 2 1994
Toluene MR 2 1994
Tetrachloroethylene MR 2 1994
Styrene MR 2 1994
Xylenes, Total MR 2 1994
1,1,1-Trichloroethane MR 2 1994
cis-1,2-Dichloroethylene MR 2 1994
1,2,4-Trichlorobenzene MR 2 1994
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.