PlainWater
States → South Dakota

JEFFERSON

PWS ID: SD4600060 · JEFFERSON, South Dakota 57038

Population Served
475
Total Violations
79
Health-Based Violations
13
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
235
County
Union
School/Daycare
No
MCL Violations
9
Monitoring Violations
62
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 9 2010
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 2014
Coliform (TCR) MR 4 1994
Arsenic MR 2 1990
Chromium MR 2 1990
Selenium MR 2 1990
cis-1,2-Dichloroethylene MR 2 1994
Tetrachloroethylene MR 2 1994
Ethylbenzene MR 2 1994
DICHLOROMETHANE MR 2 1994
1,1,2-Trichloroethane MR 2 1994
CHLOROBENZENE MR 2 1994
o-Dichlorobenzene MR 2 1994
Benzene MR 2 1994
p-Dichlorobenzene MR 2 1994
Trichloroethylene MR 2 1994
Toluene MR 2 1994
Mercury MR 2 1990
1,2,4-Trichlorobenzene MR 2 1994
Xylenes, Total MR 2 1994
1,2-Dichloroethane MR 2 1994
Vinyl chloride MR 2 1994
1,2-Dichloropropane MR 2 1994
1,1,1-Trichloroethane MR 2 1994
Cadmium MR 2 1990
Styrene MR 2 1994
trans-1,2-Dichloroethylene MR 2 1994
Barium MR 2 1990
Carbon tetrachloride MR 2 1994
Fluoride MR 2 1990
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.