HAMILTON, MT · Ravalli County
HAMILTON CITY OF 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)
- MT0000234
- System type
- Community Water System
- Population served
- 5,585
- Service connections
- 2,443
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Lead Consumer Notice
—Lead and Copper Rule
December 30, 2017 – October 19, 2020
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2012 – March 12, 2012
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
December 1, 2011 – December 31, 2011
ResolvedInitial Tap Sampling for Pb and Cu
—Lead and Copper Rule
October 1, 2001 – February 4, 2004
ResolvedInitial Tap Sampling for Pb and Cu
—Lead and Copper Rule
July 1, 2001 – February 4, 2004
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| December 30, 2017 – October 19, 2020 | Lead Consumer Notice | Lead and Copper Rule | — | Resolved |
| January 1, 2012 – March 12, 2012 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| December 1, 2011 – December 31, 2011 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 2001 – February 4, 2004 | Initial Tap Sampling for Pb and Cu | Lead and Copper Rule | — | Resolved |
| July 1, 2001 – February 4, 2004 | Initial Tap Sampling for Pb and Cu | Lead and Copper Rule | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- October 19, 2020State Compliance achieved1 linked violation
- January 31, 2018State Violation/Reminder Notice1 linked violation
- January 18, 2013State Violation/Reminder Notice1 linked violation
- January 18, 2013State Public Notification requested1 linked violation
- March 12, 2012State Compliance achieved1 linked violation
- February 3, 2012State Compliance achieved1 linked violation
- January 27, 2012State Violation/Reminder Notice1 linked violation
- January 27, 2012State Public Notification requested1 linked violation
- May 15, 2009State Compliance achieved8 linked violations
- May 15, 2001State Compliance achieved1 linked violation
Contact
LEWIS, STEPHANIE
406-363-6717
HAMILTON, MT 59840