HELENA WATER SYSTEM
Montana — Community Water System — PWSID: MT0000241
System Information
| PWSID | MT0000241 |
| System Name | HELENA WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | HELENA |
| ZIP Code | 59602 |
| Address | 2108 E CUSTER AVE |
| Organization | SANDERSON, JANICE R |
| Phone | 406-457-8512 |
Population & Service
| Population Served | 32,091 |
| Service Connections | 11,684 |
Drinking Water Violations (68)
This water system has 68 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, 2023 | Mar 31, 2023 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2023 | — | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2023 | — | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2023 | — | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2022 | — | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2022 | — | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2022 | — | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .066 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2022 | — | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .066 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2022 | — | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .066 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2022 | — | |
| Oct 1, 2011 | — | Other | No | No | — | — | — | Resolved | Nov 7, 2011 | — | |
| Oct 1, 2011 | — | Other | No | No | — | — | — | Resolved | Nov 7, 2011 | — | |
| Oct 1, 2011 | — | Other | No | No | — | — | — | Resolved | Nov 7, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 7 MFL | — | Resolved | Oct 28, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 7 MFL | — | Resolved | Oct 28, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 7 MFL | — | Resolved | Oct 28, 2013 | — | |
| Oct 1, 2008 | Oct 31, 2008 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| May 1, 2008 | May 31, 2008 | MR | No | Yes | — | — | — | Resolved | May 31, 2008 | — | |
| May 1, 2008 | May 31, 2008 | MR | No | Yes | — | — | — | Resolved | May 31, 2008 | — | |
| May 1, 2008 | May 31, 2008 | MR | No | Yes | — | — | — | Resolved | May 31, 2008 | — | |
| May 1, 2008 | May 31, 2008 | MR | No | Yes | — | — | — | Resolved | May 31, 2008 | — | |
| May 1, 2008 | May 31, 2008 | MR | No | Yes | — | — | — | Resolved | May 31, 2008 | — | |
| May 1, 2008 | May 31, 2008 | MR | No | Yes | — | — | — | Resolved | May 31, 2008 | — | |
| Jan 1, 2008 | Dec 31, 2016 | MR | No | Yes | — | 5 pCi/L | — | Archived | Dec 31, 2016 | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Resolved | Jul 16, 2009 | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Resolved | Jul 16, 2009 | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Resolved | Jul 16, 2009 | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Resolved | Jul 16, 2009 | — | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2006 | — | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2006 | — | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2006 | — | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2006 | — | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2006 | — | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | No | — | 0.080 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | No | — | 0.080 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | No | — | 0.080 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | No | — | 0.060 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | No | — | 0.060 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | No | — | 0.060 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | No | — | 0.060 mg/L | — | Resolved | Mar 31, 2006 | — |
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.