GRASS LAND ESTATES
Montana — Community Water System — PWSID: MT0004448
System Information
| PWSID | MT0004448 |
| System Name | GRASS LAND ESTATES |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 22, 2007 |
| Last Reported | Jan 5, 2026 |
Location & Contact
| State | Montana |
| City | EAST HELENA |
| ZIP Code | 59635 |
| Address | 34 INDUSTRY LOOP BLDG E |
| Organization | ROCKY MOUNTAIN OPERATIONS |
| Phone | 406-442-2949 |
Population & Service
| Population Served | 228 |
| Service Connections | 91 |
Drinking Water Violations (19)
This water system has 19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2020 | Jun 30, 2020 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Jun 30, 2020 | Nitrate Rule |
| Apr 1, 2020 | Jun 30, 2020 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Jun 30, 2020 | Nitrate Rule |
| Apr 1, 2020 | Jun 30, 2020 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Jun 30, 2020 | Nitrate Rule |
| Sep 1, 2018 | Sep 30, 2018 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Sep 25, 2018 | Revised Total Coliform Rule |
| Sep 1, 2018 | Sep 30, 2018 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Sep 25, 2018 | Revised Total Coliform Rule |
| Sep 1, 2018 | Sep 30, 2018 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Sep 25, 2018 | Revised Total Coliform Rule |
| Jan 1, 2010 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 20, 2012 | Lead and Copper Rule |
| Jan 1, 2010 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 20, 2012 | Lead and Copper Rule |
| Jul 1, 2008 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 21, 2009 | Lead and Copper Rule |
| Jul 1, 2007 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 21, 2009 | Lead and Copper Rule |
| Jul 1, 2007 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 21, 2009 | Lead and Copper Rule |
| Feb 1, 2007 | Feb 28, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2007 | Total Coliform Rule |
| Feb 1, 2007 | Feb 28, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2007 | Total Coliform Rule |
| Jan 1, 2005 | Dec 31, 2007 | Aldicarb | MR | No | Yes | — | — | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Dalapon | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Picloram | MR | No | Yes | — | 0.5 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Dinoseb | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Dinoseb | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Dinoseb | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
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.