HELENA, MT · Lewis and Clark County
ROSEMARYS ADDITION Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Montana’s official records. Always confirm current status with Montana before making decisions based on this information.
System facts
- System ID (PWSID)
- MT0002743
- System type
- Community Water System
- Population served
- 30
- Service connections
- 14
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2014 – October 23, 2014
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2012 – December 31, 2012
ResolvedConsumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
February 5, 2007 – March 1, 2007
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Benzene
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Picloram
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
June 1, 1997 – June 30, 1997
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2014 – October 23, 2014 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| January 1, 2012 – December 31, 2012 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| February 5, 2007 – March 1, 2007 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Dinoseb | — | Resolved |
| June 1, 1997 – June 30, 1997 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- October 23, 2014State Violation/Reminder Notice1 linked violation
- October 23, 2014State Public Notification requested1 linked violation
- October 23, 2014State Compliance achieved1 linked violation
- January 31, 2013State Compliance achieved1 linked violation
- January 18, 2013State Violation/Reminder Notice1 linked violation
- January 18, 2013State Public Notification requested1 linked violation
- May 29, 2009State Compliance achieved1 linked violation
- May 15, 2009State Compliance achieved8 linked violations
- May 15, 2009State Compliance achieved1 linked violation
- March 1, 2007State Compliance achieved1 linked violation
- February 5, 2007State Violation/Reminder Notice1 linked violation
- January 5, 2006State Compliance achieved5 linked violations
- April 14, 2005State Violation/Reminder Notice6 linked violations
- April 13, 2005State Public Notification requested3 linked violations
- October 10, 1983State no additional Formal Action needed1 linked violation
Contact
CADWELL, LORI K
406-458-9818
HELENA, MT 59602