TENNYSON WATERWORKS
Wisconsin - Community Water System - PWSID: WI1220120
System Information
| PWSID | WI1220120 |
| System Name | TENNYSON 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 |
| Address | PO BOX 172 |
| Organization | YAGER, LYNN - TENNYSON VILLAGE CLERK |
| Phone | - |
Population & Service
| Population Served | 367 |
| Service Connections | 135 |
Drinking Water Violations (103)
This water system has 103 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, 2025 | - | MR | No | No | - | TT | - | Resolved | Jan 29, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Jan 29, 2025 | - | |
| 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 | - | |
| Jun 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Sep 13, 2024 | - | |
| Jun 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Sep 13, 2024 | - | |
| Jun 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Sep 13, 2024 | - | |
| Jun 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Sep 13, 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 | - | 0.060 mg/L | - | Resolved | Sep 29, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.060 mg/L | - | Resolved | Sep 29, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.060 mg/L | - | Resolved | Sep 29, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 29, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 29, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 29, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.060 mg/L | - | Resolved | Sep 29, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2015 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 29, 2014 | - | |
| Jan 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Sep 26, 2014 | - | |
| Jan 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Sep 26, 2014 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | No | - | 4.0 mg/L | - | Resolved | Nov 23, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | No | - | 4.0 mg/L | - | Resolved | Nov 23, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | No | - | 4.0 mg/L | - | Resolved | Nov 23, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | No | - | 4.0 mg/L | - | Resolved | Nov 23, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Jul 1, 2003 | - | Other | No | No | - | - | - | Resolved | Jul 11, 2003 | - | |
| Feb 1, 1998 | Feb 28, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 1998 | - | |
| Feb 1, 1998 | Feb 28, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 1998 | - | |
| Feb 1, 1998 | Feb 28, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 1998 | - | |
| Feb 1, 1998 | Feb 28, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 1998 | - | |
| 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 | - |
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.