ELKHORN WATERWORKS
Wisconsin - Community Water System - PWSID: WI2650062
System Information
| PWSID | WI2650062 |
| System Name | ELKHORN 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 | ELKHORN |
| ZIP Code | 53121 |
| Address | PO BOX 920 |
| Organization | PEREZ, REBECA - CITY CLERK |
| Phone | - |
Population & Service
| Population Served | 10,317 |
| Service Connections | 3,821 |
Drinking Water Violations (291)
This water system has 291 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 1, 2021 | - | Other | No | No | - | - | - | Resolved | Mar 21, 2022 | - | |
| Nov 1, 2021 | - | Other | No | No | - | - | - | Resolved | Mar 21, 2022 | - | |
| Oct 28, 2021 | - | MR | No | No | - | - | - | Resolved | Mar 18, 2022 | - | |
| Oct 28, 2021 | - | MR | No | No | - | - | - | Resolved | Mar 18, 2022 | - | |
| Oct 28, 2021 | - | MR | No | No | - | - | - | Resolved | Mar 18, 2022 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 9.111 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 9.111 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 9.111 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 9.111 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 9.111 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 9.111 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 9.111 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2021 | - | |
| Nov 1, 2020 | Sep 21, 2022 | TT | Yes | No | - | TT | - | Resolved | Sep 21, 2022 | - | |
| Nov 1, 2020 | Sep 21, 2022 | TT | Yes | No | - | TT | - | Resolved | Sep 21, 2022 | - | |
| Nov 1, 2020 | Sep 21, 2022 | TT | Yes | No | - | TT | - | Resolved | Sep 21, 2022 | - | |
| Nov 1, 2020 | Sep 21, 2022 | TT | Yes | No | - | TT | - | Resolved | Sep 21, 2022 | - | |
| Nov 1, 2020 | Sep 21, 2022 | TT | Yes | No | - | TT | - | Resolved | Sep 21, 2022 | - | |
| Nov 1, 2020 | Sep 21, 2022 | TT | Yes | No | - | TT | - | Resolved | Sep 21, 2022 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | 9.534 PCI/L | 5 pCi/L | 5.5 | Resolved | Dec 31, 2020 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | 9.534 PCI/L | 5 pCi/L | 5.5 | Resolved | Dec 31, 2020 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | 9.534 PCI/L | 5 pCi/L | 5.5 | Resolved | Dec 31, 2020 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | 9.534 PCI/L | 5 pCi/L | 5.5 | Resolved | Dec 31, 2020 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | 9.534 PCI/L | 5 pCi/L | 5.5 | Resolved | Dec 31, 2020 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | 9.534 PCI/L | 5 pCi/L | 5.5 | Resolved | Dec 31, 2020 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | 10.07 PCI/L | 5 pCi/L | 5.5 | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | 10.07 PCI/L | 5 pCi/L | 5.5 | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | 10.07 PCI/L | 5 pCi/L | 5.5 | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | 10.07 PCI/L | 5 pCi/L | 5.5 | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | 10.07 PCI/L | 5 pCi/L | 5.5 | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | 10.07 PCI/L | 5 pCi/L | 5.5 | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | 10.07 PCI/L | 5 pCi/L | 5.5 | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | 10.07 PCI/L | 5 pCi/L | 5.5 | Resolved | Sep 30, 2019 | - | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | 9.8 PCI/L | 5 pCi/L | 5.5 | Resolved | Jun 30, 2019 | - | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | 9.8 PCI/L | 5 pCi/L | 5.5 | Resolved | Jun 30, 2019 | - | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | 9.8 PCI/L | 5 pCi/L | 5.5 | Resolved | Jun 30, 2019 | - | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | 9.8 PCI/L | 5 pCi/L | 5.5 | Resolved | Jun 30, 2019 | - | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | 9.8 PCI/L | 5 pCi/L | 5.5 | Resolved | Jun 30, 2019 | - | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | 9.8 PCI/L | 5 pCi/L | 5.5 | Resolved | Jun 30, 2019 | - | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | 9.8 PCI/L | 5 pCi/L | 5.5 | Resolved | Jun 30, 2019 | - | |
| Nov 7, 2018 | - | Other | No | No | - | - | - | Resolved | May 3, 2019 | - | |
| Nov 7, 2018 | - | Other | No | No | - | - | - | Resolved | May 3, 2019 | - | |
| Nov 7, 2018 | - | Other | No | No | - | - | - | Resolved | May 3, 2019 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .0185 MG/L | 0.010 mg/L | .0105 | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .0185 MG/L | 0.010 mg/L | .0105 | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .0185 MG/L | 0.010 mg/L | .0105 | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .0185 MG/L | 0.010 mg/L | .0105 | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .0185 MG/L | 0.010 mg/L | .0105 | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .0185 MG/L | 0.010 mg/L | .0105 | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .0185 MG/L | 0.010 mg/L | .0105 | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .0185 MG/L | 0.010 mg/L | .0105 | Resolved | Dec 31, 2018 | - |
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.