OAKHILL CORRECTIONAL INST
Wisconsin — Community Water System — PWSID: WI1130250
System Information
| PWSID | WI1130250 |
| System Name | OAKHILL CORRECTIONAL INST |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 28, 1981 |
| Last Reported | Dec 17, 2025 |
Location & Contact
| State | Wisconsin |
| City | OREGON |
| ZIP Code | 53575 |
| Address | 5212 HWY M |
| Organization | THOMPSON, JASON |
| Phone | — |
Population & Service
| Population Served | 1,096 |
| Service Connections | 405 |
Drinking Water Violations (7)
This water system has 7 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 | RPT | No | No | — | — | — | Resolved | Nov 7, 2024 | Lead and Copper Rule Revisions |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | TT | Yes | No | — | — | — | Resolved | Nov 7, 2024 | Lead and Copper Rule Revisions |
| Jul 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 1, 2024 | Consumer Confidence Rule |
| Jul 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 1, 2024 | Consumer Confidence Rule |
| Jul 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 20, 2024 | Consumer Confidence Rule |
| Apr 1, 2019 | Jun 30, 2019 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2019 | Nitrate Rule |
| Nov 1, 1994 | Nov 30, 1994 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1994 | Total Coliform 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.