RIDGELAND
Wisconsin — Community Water System — PWSID: 055295704
System Information
| PWSID | 055295704 |
| System Name | RIDGELAND |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Native American |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 9, 1983 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Wisconsin |
| City | ONEIDA |
| ZIP Code | 54155 |
| Address | Oneida Tribe Utility Department |
| Organization | DANFORTH, PAUL |
| Phone | 920-497-5806 |
Population & Service
| Population Served | 691 |
| Service Connections | 35 |
Drinking Water Violations (97)
This water system has 97 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 1, 2025 | — | MR | No | No | — | TT | — | Resolved | Nov 15, 2025 | — | |
| Oct 1, 2025 | — | MR | No | No | — | TT | — | Resolved | Nov 15, 2025 | — | |
| Oct 1, 2025 | — | MR | No | No | — | TT | — | Resolved | Nov 15, 2025 | — | |
| Aug 1, 2016 | Aug 31, 2016 | MON | No | Yes | — | — | — | Resolved | Aug 31, 2016 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 1996 | — |
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.