MONTREAL WATERWORKS
Wisconsin — Community Water System — PWSID: WI8260121
System Information
| PWSID | WI8260121 |
| System Name | MONTREAL WATERWORKS |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Jan 28, 1981 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Wisconsin |
| City | MONTREAL |
| ZIP Code | 54550-9701 |
| Address | CITY OF MONTREAL |
| Organization | MONTREAL CITY ATTN CLERK |
| Phone | — |
Population & Service
| Population Served | 887 |
| Service Connections | 190 |
Drinking Water Violations (766)
This water system has 766 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 2, 2025 | — | RPT | No | No | — | — | — | Unaddressed | — | — | |
| Jun 1, 2023 | — | MR | No | No | — | TT | — | Resolved | Sep 25, 2024 | — | |
| Jun 1, 2023 | — | MR | No | No | — | TT | — | Resolved | Sep 25, 2024 | — | |
| Jun 1, 2023 | — | MR | No | No | — | TT | — | Resolved | Sep 25, 2024 | — | |
| Jun 1, 2023 | — | MR | No | No | — | TT | — | Resolved | Sep 25, 2024 | — | |
| May 2, 2023 | — | TT | Yes | No | — | — | — | Resolved | May 4, 2023 | — | |
| May 2, 2023 | — | TT | Yes | No | — | — | — | Resolved | May 4, 2023 | — | |
| May 2, 2018 | — | TT | Yes | No | — | — | — | Resolved | Nov 2, 2018 | — | |
| May 2, 2018 | — | Other | No | No | — | — | — | Resolved | Jul 20, 2018 | — | |
| May 2, 2018 | — | Other | No | No | — | — | — | Resolved | Jul 20, 2018 | — | |
| May 2, 2018 | — | TT | Yes | No | — | — | — | Resolved | Nov 2, 2018 | — | |
| May 2, 2018 | — | TT | Yes | No | — | — | — | Resolved | Nov 2, 2018 | — | |
| May 2, 2018 | — | TT | Yes | No | — | — | — | Resolved | Nov 2, 2018 | — | |
| May 2, 2018 | — | TT | Yes | No | — | — | — | Resolved | Nov 2, 2018 | — | |
| Apr 16, 2016 | — | TT | Yes | No | — | — | — | Resolved | May 13, 2016 | — | |
| Apr 16, 2016 | — | TT | Yes | No | — | — | — | Resolved | May 13, 2016 | — | |
| Feb 8, 2016 | — | Other | No | No | — | — | — | Resolved | Apr 14, 2017 | — | |
| Feb 8, 2016 | — | Other | No | No | — | — | — | Resolved | Apr 14, 2017 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | No | — | 0.080 mg/L | — | Resolved | Mar 31, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | No | — | 0.060 mg/L | — | Resolved | Mar 31, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | No | — | 0.080 mg/L | — | Resolved | Mar 31, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | No | — | 0.060 mg/L | — | Resolved | Mar 31, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | No | — | 0.080 mg/L | — | Resolved | Mar 31, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | No | — | 0.060 mg/L | — | Resolved | Mar 31, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | No | — | 0.060 mg/L | — | Resolved | Mar 31, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | No | — | 0.080 mg/L | — | Resolved | Mar 31, 2016 | — | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2015 | — | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2015 | — | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2015 | — | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2015 | — | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2015 | — | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2015 | — | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2015 | — | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2015 | — | |
| Sep 26, 2013 | — | MR | No | Yes | — | — | — | Resolved | Oct 1, 2013 | — | |
| Sep 26, 2013 | — | MR | No | Yes | — | — | — | Resolved | Oct 1, 2013 | — | |
| Sep 26, 2013 | — | MR | No | Yes | — | — | — | Resolved | Oct 1, 2013 | — | |
| Sep 26, 2013 | — | MR | No | Yes | — | — | — | Resolved | Oct 1, 2013 | — | |
| Sep 26, 2013 | — | MR | No | Yes | — | — | — | Resolved | Oct 1, 2013 | — | |
| Oct 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 63.43 UG/L | 0.060 mg/L | 60.5 | Resolved | Dec 31, 2011 | — | |
| Oct 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 63.43 UG/L | 0.060 mg/L | 60.5 | Resolved | Dec 31, 2011 | — | |
| Oct 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 63.43 UG/L | 0.060 mg/L | 60.5 | Resolved | Dec 31, 2011 | — | |
| Oct 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 63.43 UG/L | 0.060 mg/L | 60.5 | Resolved | Dec 31, 2011 | — | |
| Oct 1, 2011 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Oct 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 63.43 UG/L | 0.060 mg/L | 60.5 | Resolved | Dec 31, 2011 | — | |
| Sep 1, 2011 | Sep 30, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2011 | — | |
| Sep 1, 2011 | Sep 30, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2011 | — | |
| Sep 1, 2011 | Sep 30, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2011 | — | |
| Sep 1, 2011 | Sep 30, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2011 | — | |
| Aug 4, 2011 | — | MR | No | Yes | — | — | — | Resolved | Aug 16, 2011 | — |
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.