COLOMA WATERWORKS
Wisconsin - Community Water System - PWSID: WI4700265
System Information
| PWSID | WI4700265 |
| System Name | COLOMA 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 | COLOMA |
| ZIP Code | 54930-0353 |
| Address | PO BOX 353 |
| Organization | COLOMA VIL CLERK - BRENDA WALKER |
| Phone | - |
Population & Service
| Population Served | 454 |
| Service Connections | 168 |
Drinking Water Violations (40)
This water system has 40 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, 2020 | Dec 31, 2020 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jul 26, 2012 | - | |
| Jan 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Oct 6, 2014 | - | |
| Jan 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Oct 6, 2014 | - | |
| Jul 1, 2011 | - | Other | No | No | - | - | - | Resolved | Sep 8, 2011 | - | |
| Jul 1, 2011 | - | Other | No | No | - | - | - | Resolved | Sep 8, 2011 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Aug 24, 2005 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Aug 24, 2005 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MR | No | No | - | 5% of samples | - | Archived | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Sep 1, 1992 | Sep 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1992 | - | |
| Sep 1, 1992 | Sep 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1992 | - | |
| Sep 1, 1992 | Sep 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1992 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.