ROCKY MOUNTAIN BUILDING COMPANY
Montana - Non-Transient Non-Community - PWSID: MT0003460
System Information
| PWSID | MT0003460 |
| System Name | ROCKY MOUNTAIN BUILDING COMPANY |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 14, 1990 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | HAMILTON |
| ZIP Code | 59840 |
| Address | 1883 W HWY 93 S |
| Organization | HAYES, JAKE |
| Phone | 406-210-4193 |
Population & Service
| Population Served | 75 |
| Service Connections | 1 |
Drinking Water Violations (82)
This water system has 82 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 30, 2020 | - | MR | No | No | - | TT | - | Resolved | Oct 25, 2021 | - | |
| Dec 30, 2020 | - | MR | No | No | - | TT | - | Resolved | Oct 25, 2021 | - | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | Yes | - | 7 MFL | - | Archived | Dec 31, 2022 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2011 | - | |
| Dec 1, 2009 | Dec 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2009 | - | |
| Dec 1, 2009 | Dec 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2009 | - | |
| Dec 1, 2009 | Dec 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2009 | - | |
| Dec 1, 2009 | Dec 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2009 | - | |
| Oct 1, 2009 | - | MR | No | No | - | TT | - | Resolved | Sep 20, 2011 | - | |
| Oct 1, 2009 | - | MR | No | No | - | TT | - | Resolved | Sep 20, 2011 | - | |
| Oct 1, 2009 | - | MR | No | No | - | TT | - | Resolved | Sep 20, 2011 | - | |
| Oct 1, 2008 | - | MR | No | No | - | TT | - | Resolved | Sep 16, 2008 | - | |
| Oct 1, 2008 | - | MR | No | No | - | TT | - | Resolved | Sep 16, 2008 | - | |
| Oct 1, 2008 | - | MR | No | No | - | TT | - | Resolved | Sep 16, 2008 | - | |
| Nov 1, 2007 | Nov 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2007 | - | |
| Nov 1, 2007 | Nov 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2007 | - | |
| Nov 1, 2007 | Nov 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2007 | - | |
| Jan 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2006 | - | |
| Jan 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2006 | - | |
| Jan 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2006 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2006 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2006 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2006 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2006 | - | |
| Oct 1, 2003 | - | MR | No | No | - | TT | - | Resolved | Feb 21, 2006 | - | |
| Oct 1, 2002 | - | MR | No | No | - | TT | - | Resolved | Sep 21, 2005 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2002 | - | |
| Nov 1, 2001 | Nov 30, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2001 | - | |
| May 1, 2000 | May 31, 2000 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2000 | - | |
| May 1, 2000 | May 31, 2000 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2000 | - | |
| May 1, 2000 | May 31, 2000 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2000 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | 2 mg/L | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | - | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | - | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | - | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | 0.04 mg/L | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | 0.0004 mg/L | - | Resolved | Dec 31, 1998 | - | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 1998 | - |
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.