RIO WATERWORKS
Wisconsin — Community Water System — PWSID: WI1110111
System Information
| PWSID | WI1110111 |
| System Name | RIO 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 | RIO |
| ZIP Code | 53960-0276 |
| Address | 207 LINCOLN |
| Organization | RIO VILLAGE CLERK - AMY STONE |
| Phone | — |
Population & Service
| Population Served | 1,095 |
| Service Connections | 405 |
Drinking Water Violations (69)
This water system has 69 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 | — | — | — | Unaddressed | — | — | |
| Jan 1, 2024 | — | MR | No | No | — | TT | — | Resolved | Jan 23, 2024 | — | |
| Jan 1, 2024 | — | MR | No | No | — | TT | — | Resolved | Jan 23, 2024 | — | |
| Sep 13, 2018 | — | Other | No | No | — | — | — | Resolved | Sep 28, 2018 | — | |
| Sep 13, 2018 | — | Other | No | No | — | — | — | Resolved | Sep 28, 2018 | — | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | No | — | 0.080 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 | — | |
| 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 | — | 0.080 mg/L | — | Resolved | Dec 31, 2014 | — | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2014 | — | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2014 | — | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2010 | — | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2010 | — | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2010 | — | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2010 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Mar 31, 2009 | — | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Mar 31, 2009 | — | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2008 | — | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2008 | — | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2008 | — | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2008 | — | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2008 | — | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2008 | — | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2008 | — | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2008 | — | |
| Jan 1, 2007 | Dec 31, 2008 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2008 | — | |
| Jan 1, 2007 | Dec 31, 2008 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2008 | — | |
| Jan 1, 2007 | Dec 31, 2008 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2008 | — | |
| Jan 1, 2007 | Dec 31, 2008 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2008 | — | |
| Jan 1, 2000 | Dec 31, 2000 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 2000 | Dec 31, 2000 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 2000 | Dec 31, 2000 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 2000 | Dec 31, 2000 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2000 | — |
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.