PlainWater
States → South Dakota

RIMROCK RIDGE WATER ASSOCIATION

PWS ID: SD4602084 · RAPID CITY, South Dakota 57709

Population Served
35
Total Violations
99
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
16
County
Pennington
School/Daycare
No
MCL Violations
12
Monitoring Violations
83
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 16 1994
Coliform (TCR) MCL 12 1995
Lead and Copper Rule MR 4 1993
Nitrate MR 3 1995
Combined Radium (-226 and -228) MR 2 1987
Arsenic MR 2 1988
Barium MR 2 1988
Cadmium MR 2 1988
Chromium MR 2 1988
Fluoride MR 2 1988
Vinyl chloride MR 2 1993
cis-1,2-Dichloroethylene MR 2 1993
Tetrachloroethylene MR 2 1993
DICHLOROMETHANE MR 2 1993
1,1,2-Trichloroethane MR 2 1993
1,1-Dichloroethylene MR 2 1993
CHLOROBENZENE MR 2 1993
o-Dichlorobenzene MR 2 1993
trans-1,2-Dichloroethylene MR 2 1993
1,2-Dichloropropane MR 2 1993
Benzene MR 2 1993
Trichloroethylene MR 2 1993
Toluene MR 2 1993
1,2,4-Trichlorobenzene MR 2 1993
Gross Alpha, Excl. Radon and U MR 2 1987
p-Dichlorobenzene MR 2 1993
Xylenes, Total MR 2 1993
Carbon tetrachloride MR 2 1993
1,2-Dichloroethane MR 2 1993
1,1,1-Trichloroethane MR 2 1993
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.