LA CASA GRANDE WATER AND SEWER DISTRICT
Montana — Community Water System — PWSID: MT0001924
System Information
| PWSID | MT0001924 |
| System Name | LA CASA GRANDE WATER AND SEWER DISTRICT |
| 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 | Feb 2, 1981 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | EAST HELENA |
| ZIP Code | 59635 |
| Address | 7 FIESTA COURT |
| Organization | LEFERINK, SUE |
| Phone | 406-439-5206 |
Population & Service
| Population Served | 404 |
| Service Connections | 155 |
Drinking Water Violations (48)
This water system has 48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2024 | — | MR | No | No | — | TT | — | Resolved | Sep 30, 2024 | — | |
| Oct 1, 2024 | — | MR | No | No | — | TT | — | Resolved | Sep 30, 2024 | — | |
| Oct 1, 2024 | — | MR | No | No | — | TT | — | Resolved | Sep 30, 2024 | — | |
| Oct 1, 2020 | — | MR | No | No | — | TT | — | Resolved | Aug 17, 2021 | — | |
| Oct 1, 2020 | — | MR | No | No | — | TT | — | Resolved | Aug 17, 2021 | — | |
| Oct 1, 2020 | — | MR | No | No | — | TT | — | Resolved | Aug 17, 2021 | — | |
| Jul 1, 2014 | — | Other | No | No | — | — | — | Resolved | Jul 16, 2014 | — | |
| Jul 1, 2014 | — | Other | No | No | — | — | — | Resolved | Jul 16, 2014 | — | |
| Jul 1, 2011 | — | Other | No | No | — | — | — | Resolved | Oct 3, 2011 | — | |
| Jul 1, 2011 | — | Other | No | No | — | — | — | Resolved | Oct 3, 2011 | — | |
| Jul 1, 2011 | — | Other | No | No | — | — | — | Resolved | Oct 3, 2011 | — | |
| Jul 1, 2008 | — | Other | No | No | — | — | — | Resolved | Aug 21, 2008 | — | |
| Jul 1, 2008 | — | Other | No | No | — | — | — | Resolved | Aug 21, 2008 | — | |
| Jul 1, 2008 | — | Other | No | No | — | — | — | Resolved | Aug 21, 2008 | — | |
| Jul 1, 2008 | — | Other | No | No | — | — | — | Resolved | Aug 21, 2008 | — | |
| Jul 1, 2008 | — | Other | No | No | — | — | — | Resolved | Aug 21, 2008 | — | |
| Jul 1, 2008 | — | Other | No | No | — | — | — | Resolved | Aug 21, 2008 | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Jul 1, 2007 | — | Other | No | No | — | — | — | Resolved | Aug 21, 2008 | — | |
| Jul 1, 2007 | — | Other | No | No | — | — | — | Resolved | Aug 21, 2008 | — | |
| Jul 1, 2007 | — | Other | No | No | — | — | — | Resolved | Aug 21, 2008 | — | |
| Jul 1, 2007 | — | Other | No | No | — | — | — | Resolved | Aug 21, 2008 | — | |
| Jul 1, 2007 | — | Other | No | No | — | — | — | Resolved | Aug 21, 2008 | — | |
| Feb 5, 2007 | — | Other | No | No | — | — | — | Resolved | Mar 5, 2007 | — | |
| Feb 5, 2007 | — | Other | No | No | — | — | — | Resolved | Mar 5, 2007 | — | |
| Oct 1, 2005 | Oct 31, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2005 | — | |
| Oct 1, 2005 | Oct 31, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2005 | — | |
| Oct 1, 2005 | Oct 31, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2005 | — | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2005 | — | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2005 | — | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2005 | — | |
| Oct 1, 2003 | Oct 31, 2003 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2003 | — | |
| Oct 1, 2003 | Oct 31, 2003 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2003 | — | |
| Oct 1, 2003 | Oct 31, 2003 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2003 | — | |
| Oct 1, 2003 | Oct 31, 2003 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2003 | — | |
| Oct 1, 2003 | Oct 31, 2003 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2003 | — | |
| Oct 1, 2003 | Oct 31, 2003 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2003 | — | |
| Jan 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1997 | — | |
| Jan 1, 1996 | Dec 31, 1998 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 1998 | — | |
| Sep 1, 1995 | Sep 30, 1995 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1995 | — | |
| Jun 1, 1995 | Jun 30, 1995 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1995 | — | |
| Jun 1, 1995 | Jun 30, 1995 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1995 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1993 | — |
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.