MOSINEE WATERWORKS
Wisconsin — Community Water System — PWSID: WI7370159
System Information
| PWSID | WI7370159 |
| System Name | MOSINEE WATERWORKS |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 28, 1981 |
| Last Reported | Dec 17, 2025 |
Location & Contact
| State | Wisconsin |
| City | Mosinee |
| ZIP Code | 54455-1470 |
| Address | 225 MAIN ST |
| Organization | MOSINEE CITY CLERK |
| Phone | — |
Population & Service
| Population Served | 3,406 |
| Service Connections | 1,783 |
Drinking Water Violations (13)
This water system has 13 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 1, 2017 | Dec 31, 2017 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2017 | Lead and Copper Rule |
| Jul 1, 2017 | Dec 31, 2017 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2017 | Lead and Copper Rule |
| Jul 1, 2017 | Dec 31, 2017 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2017 | Lead and Copper Rule |
| Jul 1, 2017 | Dec 31, 2017 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2017 | Lead and Copper Rule |
| Jul 1, 2017 | Dec 31, 2017 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2017 | Lead and Copper Rule |
| Jul 1, 2017 | Dec 31, 2017 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2017 | Lead and Copper Rule |
| Jul 1, 2017 | Dec 31, 2017 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2017 | Lead and Copper Rule |
| Jul 1, 2017 | Dec 31, 2017 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2017 | Lead and Copper Rule |
| Apr 1, 2013 | Jan 2, 2014 | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Jan 2, 2014 | Lead and Copper Rule |
| Apr 1, 2013 | Jan 2, 2014 | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Jan 2, 2014 | Lead and Copper Rule |
| Apr 1, 2013 | Jan 2, 2014 | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Jan 2, 2014 | Lead and Copper Rule |
| Apr 1, 2013 | Jan 2, 2014 | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Jan 2, 2014 | Lead and Copper Rule |
| Jan 1, 2013 | — | Public Notice | Other | No | No | — | — | — | Unaddressed | — | Public Notice Rule and Revised PN Rule |
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.