LEROY SANITARY DISTRICT 1
Wisconsin - Community Water System - PWSID: WI1140155
System Information
| PWSID | WI1140155 |
| System Name | LEROY SANITARY DISTRICT 1 |
| 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 | MAYVILLE |
| ZIP Code | 53050 |
| Address | N10404 CTY Y |
| Organization | KLUEGER, DALE - CHAIRMAN, BD OF COMMISSIONERS |
| Phone | - |
Population & Service
| Population Served | 320 |
| Service Connections | 118 |
Drinking Water Violations (131)
This water system has 131 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 2, 2024 | - | Other | No | No | - | - | - | Resolved | Mar 1, 2025 | - | |
| Dec 2, 2024 | - | Other | No | No | - | - | - | Resolved | Mar 1, 2025 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 5.72 PCI/L | 5 pCi/L | 5.5 | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 5.72 PCI/L | 5 pCi/L | 5.5 | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 5.72 PCI/L | 5 pCi/L | 5.5 | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 5.72 PCI/L | 5 pCi/L | 5.5 | Archived | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 5.72 PCI/L | 5 pCi/L | 5.5 | Archived | Sep 30, 2024 | - | |
| Jun 6, 2024 | - | Other | No | No | - | - | - | Resolved | Oct 16, 2024 | - | |
| Jun 6, 2024 | - | Other | No | No | - | - | - | Resolved | Oct 16, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 5.74 PCI/L | 5 pCi/L | 5.5 | Archived | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 5.74 PCI/L | 5 pCi/L | 5.5 | Archived | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 5.74 PCI/L | 5 pCi/L | 5.5 | Archived | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 5.74 PCI/L | 5 pCi/L | 5.5 | Archived | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 5.74 PCI/L | 5 pCi/L | 5.5 | Archived | Jun 30, 2024 | - | |
| Sep 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Mar 17, 2020 | - | |
| Sep 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Mar 17, 2020 | - | |
| Sep 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Mar 17, 2020 | - | |
| Sep 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Mar 17, 2020 | - | |
| Sep 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Mar 17, 2020 | - | |
| Sep 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Mar 17, 2020 | - | |
| Sep 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Mar 17, 2020 | - | |
| Sep 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Mar 17, 2020 | - | |
| Sep 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Mar 17, 2020 | - | |
| Sep 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Mar 17, 2020 | - | |
| Sep 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Mar 17, 2020 | - | |
| Sep 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Mar 17, 2020 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jul 1, 2014 | Jul 31, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 30, 2014 | - | |
| Jul 1, 2014 | Jul 31, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 30, 2014 | - | |
| Jul 1, 2014 | Jul 31, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 30, 2014 | - | |
| Jul 1, 2014 | Jul 31, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 30, 2014 | - | |
| Jan 1, 2012 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jan 1, 2012 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jan 1, 2012 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Apr 1, 2011 | Apr 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2011 | - | |
| Apr 1, 2011 | Apr 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2011 | - | |
| Apr 1, 2011 | Apr 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2011 | - | |
| Apr 1, 2011 | Apr 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2011 | - | |
| Apr 1, 2011 | Apr 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2011 | - | |
| Feb 1, 2011 | Feb 28, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2011 | - | |
| Feb 1, 2011 | Feb 28, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2011 | - | |
| Feb 1, 2011 | Feb 28, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2011 | - | |
| Feb 1, 2011 | Feb 28, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 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.