PlainWater
States → South Dakota

CSP-HIDDEN VALLEY

PWS ID: SD4600049 · CUSTER, South Dakota 57730

Population Served
45
Total Violations
71
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
State
Connections
14
County
Custer
School/Daycare
No
MCL Violations
0
Monitoring Violations
58
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 7 1998
Lead and Copper Rule MR 3 1998
Lead and Copper Rule Other 3 1999
TTHM MR 2 2005
Vinyl chloride MR 2 1993
1,1,1-Trichloroethane MR 2 1993
Ethylbenzene MR 2 1993
1,2,4-Trichlorobenzene MR 2 1993
1,1,2-Trichloroethane MR 2 1993
Xylenes, Total MR 2 1993
Carbon tetrachloride MR 2 1993
CHLOROBENZENE MR 2 1993
o-Dichlorobenzene MR 2 1993
trans-1,2-Dichloroethylene MR 2 1993
Trichloroethylene MR 2 1993
Toluene MR 2 1993
DICHLOROMETHANE MR 2 1993
Styrene MR 2 1993
p-Dichlorobenzene MR 2 1993
Benzene MR 2 1993
Tetrachloroethylene MR 2 1993
Total Haloacetic Acids (HAA5) MR 2 2005
cis-1,2-Dichloroethylene MR 2 1993
1,2-Dichloroethane MR 2 1993
1,2-Dichloropropane MR 2 1993
1,1-Dichloroethylene MR 2 1993
Gross Alpha, Excl. Radon and U MR 1 1976
Combined Radium (-226 and -228) MR 1 1976
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.