ERIN SCHOOL
Wisconsin — Non-Transient Non-Community — PWSID: WI2670245
System Information
| PWSID | WI2670245 |
| System Name | ERIN SCHOOL |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Jan 28, 1981 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Wisconsin |
| City | HARTFORD |
| ZIP Code | 53027-9757 |
| Address | 6901 CTH O |
| Organization | KALINA, JOANNIE - SUPERINTENDENT |
| Phone | — |
Population & Service
| Population Served | 405 |
| Service Connections | 1 |
Drinking Water Violations (37)
This water system has 37 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| May 1, 2024 | — | Other | No | No | — | — | — | Resolved | Jun 25, 2025 | — | |
| May 1, 2024 | — | Other | No | No | — | — | — | Resolved | Jun 25, 2025 | — | |
| Apr 1, 2024 | Apr 30, 2024 | MON | No | Yes | — | — | — | Resolved | Apr 30, 2024 | — | |
| Apr 1, 2024 | Apr 30, 2024 | MON | No | Yes | — | — | — | Resolved | Apr 30, 2024 | — | |
| Apr 1, 2024 | Apr 30, 2024 | MON | No | Yes | — | — | — | Resolved | Apr 30, 2024 | — | |
| Apr 1, 2024 | Apr 30, 2024 | MON | No | Yes | — | — | — | Resolved | Apr 30, 2024 | — | |
| Mar 19, 2024 | — | MR | No | Yes | — | — | — | Resolved | Apr 8, 2024 | — | |
| Mar 19, 2024 | — | MR | No | Yes | — | — | — | Resolved | Apr 8, 2024 | — | |
| Mar 19, 2024 | — | MR | No | Yes | — | — | — | Resolved | Apr 8, 2024 | — | |
| Mar 19, 2024 | — | MR | No | Yes | — | — | — | Resolved | Apr 8, 2024 | — | |
| Sep 1, 2015 | Sep 30, 2015 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2015 | — | |
| Sep 1, 2015 | Sep 30, 2015 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2015 | — | |
| Sep 1, 2015 | Sep 30, 2015 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2015 | — | |
| Sep 1, 2015 | Sep 30, 2015 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2015 | — | |
| Sep 1, 2015 | Sep 30, 2015 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2015 | — | |
| Sep 1, 2015 | Sep 30, 2015 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2015 | — | |
| Sep 1, 2015 | Sep 30, 2015 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2015 | — | |
| Jan 1, 2002 | Sep 30, 2002 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2002 | — | |
| Jan 1, 2002 | Sep 30, 2002 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2002 | — | |
| Jan 1, 2002 | Sep 30, 2002 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2002 | — | |
| Oct 1, 2000 | Dec 31, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | — | |
| Oct 1, 2000 | Dec 31, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | — | |
| Oct 1, 2000 | Dec 31, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | — | |
| Oct 1, 2000 | Dec 31, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | — | |
| Oct 1, 1996 | Dec 31, 1996 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 1996 | — | |
| Oct 1, 1996 | Dec 31, 1996 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 1996 | — | |
| Oct 1, 1996 | Dec 31, 1996 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 1996 | — | |
| Jul 1, 1995 | Sep 30, 1995 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1995 | — | |
| Jul 1, 1995 | Sep 30, 1995 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1995 | — | |
| Apr 1, 1995 | Jun 30, 1995 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1995 | — | |
| Apr 1, 1995 | Jun 30, 1995 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1995 | — | |
| Jul 1, 1994 | Sep 30, 1994 | MR | No | Yes | — | 5% of samples | — | Archived | Sep 30, 1994 | — | |
| Jul 1, 1994 | Sep 30, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1994 | — | |
| Jul 1, 1994 | Sep 30, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1994 | — | |
| Oct 1, 1993 | Dec 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Archived | Dec 31, 1993 | — | |
| Oct 1, 1993 | Dec 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Archived | Dec 31, 1993 | — | |
| Oct 1, 1993 | Dec 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Archived | Dec 31, 1993 | — |
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.