POTOSI WATERWORKS
Wisconsin - Community Water System - PWSID: WI1220117
System Information
| PWSID | WI1220117 |
| System Name | POTOSI 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 | Mar 2, 2026 |
Location & Contact
| State | Wisconsin |
| City | POTOSI |
| ZIP Code | 53820-0045 |
| Address | 105 N MAIN ST |
| Organization | GAVINSKI, JESSIE - CLERK |
| Phone | - |
Population & Service
| Population Served | 718 |
| Service Connections | 265 |
Drinking Water Violations (83)
This water system has 83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 1, 2024 | - | TT | Yes | No | - | - | - | Resolved | Mar 19, 2024 | - | |
| Mar 1, 2024 | - | TT | Yes | No | - | - | - | Resolved | Mar 19, 2024 | - | |
| Jan 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Jan 8, 2024 | - | |
| Jan 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Jan 8, 2024 | - | |
| May 2, 2018 | - | TT | Yes | No | - | - | - | Resolved | May 18, 2018 | - | |
| May 2, 2018 | - | TT | Yes | No | - | - | - | Resolved | May 18, 2018 | - | |
| Mar 1, 2018 | Mar 31, 2018 | MON | No | No | - | - | - | Resolved | Mar 31, 2018 | - | |
| Mar 1, 2018 | Mar 31, 2018 | MON | No | No | - | - | - | Resolved | Mar 31, 2018 | - | |
| Mar 1, 2018 | Mar 31, 2018 | MON | No | No | - | - | - | Resolved | Mar 31, 2018 | - | |
| Mar 1, 2018 | Mar 31, 2018 | MON | No | No | - | - | - | Resolved | Mar 31, 2018 | - | |
| Jan 1, 2018 | Mar 31, 2018 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Mar 31, 2018 | - | |
| Jan 1, 2018 | Mar 31, 2018 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Mar 31, 2018 | - | |
| Jan 1, 2018 | Mar 31, 2018 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Mar 31, 2018 | - | |
| Jan 1, 2018 | Mar 31, 2018 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Mar 31, 2018 | - | |
| Jan 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Jan 26, 2015 | - | |
| Jan 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Jan 26, 2015 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Aug 14, 2013 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 25, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 25, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 25, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 25, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 25, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.060 mg/L | - | Resolved | Sep 25, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.060 mg/L | - | Resolved | Sep 25, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.060 mg/L | - | Resolved | Sep 25, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.060 mg/L | - | Resolved | Sep 25, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.060 mg/L | - | Resolved | Sep 25, 2014 | - | |
| Jan 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Jan 26, 2015 | - | |
| Jan 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Jan 26, 2015 | - | |
| Nov 1, 1997 | Nov 30, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1997 | - | |
| Nov 1, 1997 | Nov 30, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1997 | - | |
| Nov 1, 1997 | Nov 30, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1997 | - | |
| Nov 1, 1997 | Nov 30, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1997 | - | |
| May 1, 1996 | May 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 1996 | - | |
| May 1, 1996 | May 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 1996 | - | |
| May 1, 1996 | May 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 1996 | - | |
| May 1, 1996 | May 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 1996 | - | |
| Jan 1, 1996 | Jan 31, 1996 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 1996 | - | |
| Jan 1, 1996 | Jan 31, 1996 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 1996 | - | |
| Jan 1, 1996 | Jan 31, 1996 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 1996 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1994 | - |
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.