HILLDALE COLONY
Montana - Community Water System - PWSID: MT0001774
System Information
| PWSID | MT0001774 |
| System Name | HILLDALE COLONY |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 5, 1980 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | HAVRE |
| ZIP Code | 59501 |
| Address | PO BOX 628 |
| Organization | KLEINSASSER, SAM S |
| Phone | 406-398-5342 |
Population & Service
| Population Served | 79 |
| Service Connections | 2 |
Drinking Water Violations (155)
This water system has 155 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 | Oct 31, 2024 | MR | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| Jan 1, 2024 | Jan 31, 2024 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2024 | - | |
| Jan 1, 2024 | Jan 31, 2024 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2024 | - | |
| Jan 1, 2024 | Jan 31, 2024 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2024 | - | |
| Oct 1, 2019 | Sep 30, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Oct 1, 2019 | Sep 30, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Oct 1, 2019 | Sep 30, 2020 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Oct 1, 2019 | Sep 30, 2020 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Oct 1, 2019 | Sep 30, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Oct 1, 2019 | Sep 30, 2020 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Jul 24, 2018 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Jul 24, 2018 | - | |
| Apr 1, 2018 | - | MR | No | No | - | TT | - | Resolved | May 4, 2018 | - | |
| Apr 1, 2018 | - | MR | No | No | - | TT | - | Resolved | May 4, 2018 | - | |
| Aug 31, 2017 | Aug 30, 2018 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 30, 2018 | - | |
| Aug 31, 2017 | Aug 30, 2018 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 30, 2018 | - | |
| Aug 31, 2017 | Aug 30, 2018 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 30, 2018 | - | |
| Aug 31, 2017 | Aug 30, 2018 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 30, 2018 | - | |
| Aug 31, 2017 | Aug 30, 2018 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 30, 2018 | - | |
| Aug 31, 2017 | Aug 30, 2018 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 30, 2018 | - | |
| Jul 1, 2017 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2017 | - | |
| Jul 1, 2017 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2017 | - | |
| Jul 1, 2017 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2017 | - | |
| Jul 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Jul 15, 2016 | - | |
| Jul 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Jul 15, 2016 | - | |
| Jul 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Jul 15, 2016 | - | |
| Aug 31, 2015 | Aug 30, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 30, 2016 | - | |
| Aug 31, 2015 | Aug 30, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 30, 2016 | - | |
| Aug 31, 2015 | Aug 30, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 30, 2016 | - | |
| Aug 31, 2015 | Aug 30, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 30, 2016 | - | |
| Aug 31, 2015 | Aug 30, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 30, 2016 | - | |
| Aug 31, 2015 | Aug 30, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 30, 2016 | - | |
| Jul 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Dec 2, 2015 | - | |
| Jul 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Dec 2, 2015 | - | |
| Jul 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Dec 2, 2015 | - | |
| Dec 30, 2014 | - | MR | No | No | - | TT | - | Resolved | Feb 25, 2015 | - | |
| Dec 30, 2014 | - | MR | No | No | - | TT | - | Resolved | Feb 25, 2015 | - | |
| Oct 1, 2010 | - | Other | No | No | - | - | - | Resolved | Oct 25, 2010 | - | |
| Oct 1, 2010 | - | Other | No | No | - | - | - | Resolved | Oct 25, 2010 | - | |
| Oct 1, 2010 | - | Other | No | No | - | - | - | Resolved | Oct 25, 2010 | - | |
| Apr 1, 2009 | Apr 30, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2009 | - | |
| Apr 1, 2009 | Apr 30, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2009 | - | |
| Apr 1, 2009 | Apr 30, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2009 | - | |
| Apr 1, 2009 | Apr 30, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2009 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Aug 13, 2008 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Aug 13, 2008 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Aug 13, 2008 | - | |
| May 1, 2008 | May 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2008 | - |
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.