UNION GROVE WATERWORKS
Wisconsin - Community Water System - PWSID: WI2520200
System Information
| PWSID | WI2520200 |
| System Name | UNION GROVE 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 | UNION GROVE |
| ZIP Code | 53182 |
| Address | 925 15TH AVE |
| Organization | UNION GROVE VILLAGE CLERK |
| Phone | - |
Population & Service
| Population Served | 4,900 |
| Service Connections | 1,814 |
Drinking Water Violations (71)
This water system has 71 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 17, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Jun 10, 2025 | - | |
| Jan 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Mar 14, 2018 | - | |
| Jan 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Mar 14, 2018 | - | |
| Oct 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2014 | - | |
| Oct 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2014 | - | |
| Oct 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2014 | - | |
| Oct 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2014 | - | |
| Oct 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2014 | - | |
| Oct 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2014 | - | |
| Oct 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2014 | - | |
| Oct 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2014 | - | |
| Oct 1, 2011 | - | Other | No | No | - | - | - | Resolved | Jun 7, 2012 | - | |
| Oct 1, 2011 | - | Other | No | No | - | - | - | Resolved | Jun 7, 2012 | - | |
| Jul 1, 2011 | - | Other | No | No | - | - | - | Resolved | Jun 7, 2012 | - | |
| Jul 1, 2011 | - | Other | No | No | - | - | - | Resolved | Jun 7, 2012 | - | |
| Jan 27, 2008 | - | Other | No | No | - | - | - | Resolved | Feb 22, 2011 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 26.43 PCI/L | 15 pCi/L | 15.5 | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 26.43 PCI/L | 15 pCi/L | 15.5 | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 26.43 PCI/L | 15 pCi/L | 15.5 | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 26.43 PCI/L | 15 pCi/L | 15.5 | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 26.43 PCI/L | 15 pCi/L | 15.5 | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 26.43 PCI/L | 15 pCi/L | 15.5 | Resolved | Dec 31, 2007 | - | |
| Mar 13, 2002 | Apr 30, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Apr 30, 2002 | - | |
| Mar 13, 2002 | Apr 30, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Apr 30, 2002 | - | |
| Mar 13, 2002 | Apr 30, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Apr 30, 2002 | - | |
| Mar 13, 2002 | Apr 30, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Apr 30, 2002 | - | |
| Mar 13, 2002 | Apr 30, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Apr 30, 2002 | - | |
| Mar 13, 2002 | Apr 30, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Apr 30, 2002 | - | |
| Mar 13, 2002 | Apr 30, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Apr 30, 2002 | - | |
| Mar 13, 2002 | Apr 30, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Apr 30, 2002 | - | |
| Mar 13, 2002 | Apr 30, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Apr 30, 2002 | - | |
| Jan 1, 2001 | May 9, 2007 | MCL | Yes | No | 5.7 PCI/L | 5 pCi/L | 5.5 | Resolved | May 9, 2007 | - | |
| Jan 1, 2001 | May 9, 2007 | MCL | Yes | No | 5.7 PCI/L | 5 pCi/L | 5.5 | Resolved | May 9, 2007 | - | |
| Jan 1, 2001 | May 9, 2007 | MCL | Yes | No | 5.7 PCI/L | 5 pCi/L | 5.5 | Resolved | May 9, 2007 | - | |
| Jan 1, 2001 | May 9, 2007 | MCL | Yes | No | 5.7 PCI/L | 5 pCi/L | 5.5 | Resolved | May 9, 2007 | - | |
| Jan 1, 2001 | May 9, 2007 | MCL | Yes | No | 5.7 PCI/L | 5 pCi/L | 5.5 | Resolved | May 9, 2007 | - | |
| Oct 1, 2000 | - | Other | No | No | - | - | - | Resolved | Jun 5, 2001 | - | |
| Oct 1, 2000 | - | Other | No | No | - | - | - | Resolved | Jun 5, 2001 | - | |
| Oct 1, 2000 | - | Other | No | No | - | - | - | Resolved | Jun 5, 2001 | - | |
| Jul 1, 2000 | - | Other | No | No | - | - | - | Resolved | Jun 20, 2001 | - | |
| Jul 1, 2000 | - | Other | No | No | - | - | - | Resolved | Jun 20, 2001 | - | |
| Jul 1, 2000 | - | Other | No | No | - | - | - | Resolved | Jun 20, 2001 | - | |
| Jan 1, 1999 | May 9, 2007 | MCL | Yes | No | 25 PCI/L | 15 pCi/L | 15.5 | Resolved | May 9, 2007 | - | |
| Jan 1, 1999 | May 9, 2007 | MCL | Yes | No | 25 PCI/L | 15 pCi/L | 15.5 | Resolved | May 9, 2007 | - | |
| Jan 1, 1999 | May 9, 2007 | MCL | Yes | No | 25 PCI/L | 15 pCi/L | 15.5 | Resolved | May 9, 2007 | - | |
| Jan 1, 1999 | May 9, 2007 | MCL | Yes | No | 25 PCI/L | 15 pCi/L | 15.5 | Resolved | May 9, 2007 | - | |
| Oct 1, 1998 | May 9, 2007 | MCL | Yes | No | 17 PCI/L | 15 pCi/L | 15.5 | Resolved | May 9, 2007 | - | |
| Oct 1, 1998 | May 9, 2007 | MCL | Yes | No | 17 PCI/L | 15 pCi/L | 15.5 | Resolved | May 9, 2007 | - | |
| Oct 1, 1998 | May 9, 2007 | MCL | Yes | No | 17 PCI/L | 15 pCi/L | 15.5 | Resolved | May 9, 2007 | - |
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.