PlainWater

HOLMBERG VILLAGE ESTATES

PWS ID: MT0004190 · HELENA, Montana 59602

Population Served
225
Total Violations
164
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
112
County
Lewis and Clark
School/Daycare
No
MCL Violations
5
Monitoring Violations
153
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 5 2015
Coliform (TCR) MR 3 2005
1,2,4-Trichlorobenzene MR 3 2005
cis-1,2-Dichloroethylene MR 3 2005
DICHLOROMETHANE MR 3 2005
o-Dichlorobenzene MR 3 2005
Vinyl chloride MR 3 2005
1,1-Dichloroethylene MR 3 2005
1,2-Dichloroethane MR 3 2005
Carbon tetrachloride MR 3 2005
Trichloroethylene MR 3 2005
Tetrachloroethylene MR 3 2005
CHLOROBENZENE MR 3 2005
Toluene MR 3 2005
Styrene MR 3 2005
Consumer Confidence Rule Other 3 2007
Methoxychlor MR 3 2011
Di(2-ethylhexyl) adipate MR 3 2011
OXAMYL MR 3 2011
Simazine MR 3 2011
Di(2-ethylhexyl) phthalate MR 3 2011
Picloram MR 3 2011
Atrazine MR 3 2011
LASSO MR 3 2011
Heptachlor epoxide MR 3 2011
2,4-D MR 3 2011
2,4,5-TP MR 3 2011
Arsenic MR 3 2011
Gross Alpha, Excl. Radon and U MR 3 2011
Aldicarb sulfone MR 3 2011
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.