HOLTER DAM CG BLM
Montana — Transient Non-Community — PWSID: MT0003516
System Information
| PWSID | MT0003516 |
| System Name | HOLTER DAM CG BLM |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Aug 12, 1991 |
| Last Reported | Jan 5, 2026 |
Location & Contact
| State | Montana |
| City | HELENA |
| ZIP Code | 59602 |
| Address | 5965 YORK RD |
| Organization | MCGRATH, CHRIS |
| Phone | 406-345-5322 |
Population & Service
| Population Served | 300 |
| Service Connections | 6 |
Drinking Water Violations (25)
This water system has 25 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2024 | Dec 31, 2024 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2024 | Nitrate Rule |
| Jan 1, 2024 | Dec 31, 2024 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2024 | Nitrate Rule |
| Jan 1, 2024 | Dec 31, 2024 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2024 | Nitrate Rule |
| May 2, 2022 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Mar 8, 2022 | Revised Total Coliform Rule |
| May 2, 2022 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Mar 8, 2022 | Revised Total Coliform Rule |
| May 2, 2022 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Mar 8, 2022 | Revised Total Coliform Rule |
| May 1, 2022 | May 31, 2022 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | May 31, 2022 | Revised Total Coliform Rule |
| May 1, 2022 | May 31, 2022 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | May 31, 2022 | Revised Total Coliform Rule |
| May 1, 2022 | May 31, 2022 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | May 31, 2022 | Revised Total Coliform Rule |
| May 16, 2015 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Jun 3, 2015 | Ground Water Rule |
| May 16, 2015 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Jun 3, 2015 | Ground Water Rule |
| May 16, 2015 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Jun 3, 2015 | Ground Water Rule |
| May 1, 2015 | May 31, 2015 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2015 | Total Coliform Rule |
| May 1, 2015 | May 31, 2015 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2015 | Total Coliform Rule |
| May 1, 2015 | May 31, 2015 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2015 | Total Coliform Rule |
| May 1, 2015 | May 31, 2015 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2015 | Total Coliform Rule |
| May 1, 2015 | May 31, 2015 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2015 | Total Coliform Rule |
| Jan 1, 2003 | Dec 31, 2003 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2003 | Nitrate Rule |
| Jul 1, 2002 | Sep 30, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | Total Coliform Rule |
| Jul 1, 2002 | Sep 30, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | Total Coliform Rule |
| Jul 1, 2002 | Sep 30, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | Total Coliform Rule |
| Jul 1, 2002 | Sep 30, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | Total Coliform Rule |
| Jul 1, 2000 | Sep 30, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2000 | Total Coliform Rule |
| Jul 1, 2000 | Sep 30, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2000 | Total Coliform Rule |
| Jul 1, 2000 | Sep 30, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2000 | Total Coliform Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.