GRANTON WATERWORKS
Wisconsin — Community Water System — PWSID: WI6100327
System Information
| PWSID | WI6100327 |
| System Name | GRANTON 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 | GRANTON |
| ZIP Code | 54436 |
| Address | PO BOX 69 |
| Organization | GRANTON VILLAGE CLERK - COLE MINSAAS |
| Phone | — |
Population & Service
| Population Served | 349 |
| Service Connections | 189 |
Drinking Water Violations (93)
This water system has 93 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, 2025 | Mar 31, 2025 | MCL | Yes | No | .183 UG/L | 0.00005 mg/L | .055 | Archived | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | .183 UG/L | 0.00005 mg/L | .055 | Archived | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | .183 UG/L | 0.00005 mg/L | .055 | Archived | Mar 31, 2025 | — | |
| 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 | — | 0.060 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, 2017 | Dec 31, 2017 | MR | No | No | — | 0.060 mg/L | — | Resolved | Sep 19, 2017 | — | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | — | 0.080 mg/L | — | Resolved | Sep 19, 2017 | — | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | — | 0.080 mg/L | — | Resolved | Sep 19, 2017 | — | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | — | 0.080 mg/L | — | Resolved | Sep 19, 2017 | — | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | — | 0.080 mg/L | — | Resolved | Sep 19, 2017 | — | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | — | 0.060 mg/L | — | Resolved | Sep 19, 2017 | — | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | — | 0.060 mg/L | — | Resolved | Sep 19, 2017 | — | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | — | 0.060 mg/L | — | Resolved | Sep 19, 2017 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 2, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 2, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 2, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 2, 2016 | — | |
| Jan 1, 2016 | Jan 31, 2016 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2016 | — | |
| Jan 1, 2016 | Jan 31, 2016 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2016 | — | |
| Jan 1, 2016 | Jan 31, 2016 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2016 | — | |
| Jan 1, 2016 | Jan 31, 2016 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2016 | — | |
| Jul 1, 2014 | Sep 30, 2014 | MCL | Yes | No | .0565 UG/L | 0.00005 mg/L | .055 | Resolved | Sep 30, 2014 | — | |
| Jul 1, 2014 | Sep 30, 2014 | MCL | Yes | No | .0565 UG/L | 0.00005 mg/L | .055 | Resolved | Sep 30, 2014 | — | |
| Jul 1, 2014 | Sep 30, 2014 | MCL | Yes | No | .0565 UG/L | 0.00005 mg/L | .055 | Resolved | Sep 30, 2014 | — | |
| Jul 1, 2014 | Sep 30, 2014 | MCL | Yes | No | .0565 UG/L | 0.00005 mg/L | .055 | Resolved | Sep 30, 2014 | — | |
| Jul 1, 2014 | Sep 30, 2014 | MCL | Yes | No | .0565 UG/L | 0.00005 mg/L | .055 | Resolved | Sep 30, 2014 | — | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2014 | — | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2014 | — | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2014 | — | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | No | — | 0.060 mg/L | — | Resolved | Dec 31, 2014 | — | |
| Mar 1, 2011 | — | Other | No | No | — | — | — | Resolved | Jun 26, 2012 | — | |
| Mar 1, 2011 | — | Other | No | No | — | — | — | Resolved | Jun 26, 2012 | — | |
| 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 | — | |
| Jan 1, 2011 | Mar 31, 2011 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 8, 2011 | — | |
| Jan 1, 2011 | Mar 31, 2011 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 8, 2011 | — | |
| Jan 1, 2011 | Mar 31, 2011 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 8, 2011 | — | |
| Jan 1, 2011 | Mar 31, 2011 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 8, 2011 | — | |
| Feb 1, 2010 | Feb 28, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2010 | — | |
| Feb 1, 2010 | Feb 28, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2010 | — | |
| Feb 1, 2010 | Feb 28, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2010 | — | |
| Feb 1, 2010 | Feb 28, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2010 | — |
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.