HELENA, MT · Lewis and Clark County
BARNETT WATER USERS SYSTEM 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)
- MT0003183
- System type
- Community Water System
- Population served
- 70
- Service connections
- 29
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Lead Consumer Notice
—Lead and Copper Rule
December 30, 2024 – March 10, 2025
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Regular
—BHC-GAMMA
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Regular
—Dalapon
January 1, 2023 – December 31, 2025
ArchivedLead Consumer Notice
—Lead and Copper Rule
December 30, 2015 – February 1, 2016
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Arsenic
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2011 – December 31, 2013
Resolved
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| December 30, 2024 – March 10, 2025 | Lead Consumer Notice | Lead and Copper Rule | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Pentachlorophenol | — | Archived |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | BHC-GAMMA | — | Archived |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Dalapon | — | Archived |
| December 30, 2015 – February 1, 2016 | Lead Consumer Notice | Lead and Copper Rule | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- January 24, 2026State Violation/Reminder Notice152 linked violations
- January 24, 2026State Public Notification requested140 linked violations
- November 22, 2022State Violation/Reminder Notice197 linked violations
Contact
SENNETT, MIKE R
406-461-5718
HELENA, MT 59602