MERRILLAN WATERWORKS
Wisconsin - Community Water System - PWSID: WI6270294
System Information
| PWSID | WI6270294 |
| System Name | MERRILLAN 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 | MERRILLAN |
| ZIP Code | 54754 |
| Address | 101 S MAIN |
| Organization | MERRILLAN VILLAGE CLERK/PENNY DANIELSON |
| Phone | - |
Population & Service
| Population Served | 531 |
| Service Connections | 238 |
Drinking Water Violations (112)
This water system has 112 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 5, 2025 | - | |
| Jun 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Aug 14, 2024 | - | |
| Jun 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Aug 14, 2024 | - | |
| Jun 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Aug 14, 2024 | - | |
| Jun 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Aug 14, 2024 | - | |
| Apr 1, 2017 | - | MR | No | No | - | TT | - | Resolved | Apr 20, 2017 | - | |
| Apr 1, 2017 | - | MR | No | No | - | TT | - | Resolved | Apr 20, 2017 | - | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | No | - | 4.0 mg/L | - | Resolved | Feb 13, 2012 | - | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | No | - | 4.0 mg/L | - | Resolved | Feb 13, 2012 | - | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | No | - | 4.0 mg/L | - | Resolved | Feb 13, 2012 | - | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | No | - | 4.0 mg/L | - | Resolved | Feb 13, 2012 | - | |
| Jan 1, 2012 | Jan 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2012 | - | |
| Jan 1, 2012 | Jan 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2012 | - | |
| Jan 1, 2012 | Jan 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2012 | - | |
| Jan 1, 2012 | Jan 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2012 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Jul 26, 2004 | - | |
| Jul 1, 2003 | - | Other | No | No | - | - | - | Resolved | Aug 20, 2003 | - | |
| Dec 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 5% of samples | - | Archived | Dec 31, 1994 | - | |
| Dec 1, 1994 | Dec 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1994 | - | |
| Dec 1, 1994 | Dec 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1994 | - | |
| Dec 1, 1994 | Dec 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1994 | - | |
| Dec 1, 1994 | Dec 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1993 | - |
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.