OCONTO WATERWORKS
Wisconsin — Community Water System — PWSID: WI4430495
System Information
| PWSID | WI4430495 |
| System Name | OCONTO 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 | Dec 17, 2025 |
Location & Contact
| State | Wisconsin |
| City | OCONTO |
| ZIP Code | 54153-1542 |
| Address | MATT BEEKMAN |
| Organization | OCONTO UTILITY COMMISSION - UTILITY MGR |
| Phone | — |
Population & Service
| Population Served | 4,610 |
| Service Connections | 1,707 |
Drinking Water Violations (11)
This water system has 11 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 | — | LEAD AND COPPER RULE REVISIONS | TT | Yes | No | — | — | — | Resolved | May 27, 2025 | Lead and Copper Rule Revisions |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | TT | Yes | No | — | — | — | Resolved | May 27, 2025 | Lead and Copper Rule Revisions |
| Jan 1, 2019 | Mar 31, 2019 | Combined Radium (-226 and -228) | MCL | Yes | No | 5.63625 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2019 | Radionuclides and Revised Rad Rule |
| Jan 1, 2015 | Mar 31, 2015 | Combined Radium (-226 and -228) | MCL | Yes | No | 5.73 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2015 | Radionuclides and Revised Rad Rule |
| Jan 1, 2015 | Mar 31, 2015 | Combined Radium (-226 and -228) | MCL | Yes | No | 5.73 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2015 | Radionuclides and Revised Rad Rule |
| Jan 1, 2015 | Mar 31, 2015 | Combined Radium (-226 and -228) | MCL | Yes | No | 5.73 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2015 | Radionuclides and Revised Rad Rule |
| Jan 1, 2015 | Mar 31, 2015 | Combined Radium (-226 and -228) | MCL | Yes | No | 5.73 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2015 | Radionuclides and Revised Rad Rule |
| Jan 1, 2015 | Mar 31, 2015 | Combined Radium (-226 and -228) | MCL | Yes | No | 5.73 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2015 | Radionuclides and Revised Rad Rule |
| Jan 1, 2015 | Mar 31, 2015 | Combined Radium (-226 and -228) | MCL | Yes | No | 5.73 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2015 | Radionuclides and Revised Rad Rule |
| Jan 1, 2015 | Mar 31, 2015 | Combined Radium (-226 and -228) | MCL | Yes | No | 5.73 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2015 | Radionuclides and Revised Rad Rule |
| Jan 1, 2015 | Mar 31, 2015 | Combined Radium (-226 and -228) | MCL | Yes | No | 5.73 PCI/L | 5 pCi/L | 5.5 | Resolved | Mar 31, 2015 | Radionuclides and Revised Rad Rule |
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.