OCONTO FALLS WATERWORKS
Wisconsin — Community Water System — PWSID: WI4430496
System Information
| PWSID | WI4430496 |
| System Name | OCONTO FALLS 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 FALLS |
| ZIP Code | 54154-0070 |
| Address | BETH RANK |
| Organization | OCONTO FALLS CITY OF |
| Phone | — |
Population & Service
| Population Served | 2,892 |
| Service Connections | 1,071 |
Drinking Water Violations (9)
This water system has 9 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 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 12, 2025 | Public Notice Rule and Revised PN Rule |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | TT | Yes | No | — | — | — | Resolved | May 26, 2025 | Lead and Copper Rule Revisions |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | TT | Yes | No | — | — | — | Resolved | May 26, 2025 | Lead and Copper Rule Revisions |
| Sep 1, 2012 | Sep 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2012 | Total Coliform Rule |
| Sep 1, 2012 | Sep 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2012 | Total Coliform Rule |
| Jul 1, 2012 | Sep 30, 2012 | Chloramine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2012 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2012 | Sep 30, 2012 | Chloramine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2012 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2012 | Sep 30, 2012 | Chloramine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2012 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2012 | Sep 30, 2012 | Chloramine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2012 | Stage 1 Disinfectants and Disinfection Byproducts 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.