TAMARACK HEALTH HAYWARD MEDICAL CENTER
Wisconsin - Community Water System - PWSID: WI8581004
System Information
| PWSID | WI8581004 |
| System Name | TAMARACK HEALTH HAYWARD MEDICAL CENTER |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 18, 1981 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Wisconsin |
| City | HAYWARD |
| ZIP Code | 54843 |
| Address | 11040 STATE RD 77 |
| Organization | SHEEHAN, HEATHER - ADMINISTRATOR |
| Phone | - |
Population & Service
| Population Served | 85 |
| Service Connections | 6 |
Drinking Water Violations (167)
This water system has 167 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Feb 1, 2016 | Feb 29, 2016 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 29, 2016 | - | |
| Feb 1, 2016 | Feb 29, 2016 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 29, 2016 | - | |
| Feb 1, 2016 | Feb 29, 2016 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 29, 2016 | - | |
| Feb 1, 2016 | Feb 29, 2016 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 29, 2016 | - | |
| Feb 1, 2016 | Feb 29, 2016 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 29, 2016 | - | |
| Jan 1, 2014 | - | MR | No | No | - | TT | - | Resolved | May 20, 2014 | - | |
| Jan 1, 2014 | - | MR | No | No | - | TT | - | Resolved | May 20, 2014 | - | |
| Jan 1, 2014 | - | MR | No | No | - | TT | - | Resolved | May 20, 2014 | - | |
| Dec 17, 2010 | - | MR | No | Yes | - | - | - | Resolved | Dec 20, 2010 | - | |
| Dec 17, 2010 | - | MR | No | Yes | - | - | - | Resolved | Dec 20, 2010 | - | |
| Dec 17, 2010 | - | MR | No | Yes | - | - | - | Resolved | Dec 20, 2010 | - | |
| Dec 17, 2010 | - | MR | No | Yes | - | - | - | Resolved | Dec 20, 2010 | - | |
| Dec 1, 2001 | Dec 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2001 | - | |
| Oct 1, 2001 | Oct 31, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2001 | - | |
| Oct 1, 2001 | Oct 31, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2001 | - | |
| Oct 1, 2001 | Oct 31, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2001 | - | |
| Oct 1, 2001 | Oct 31, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2001 | - | |
| Oct 1, 2001 | Oct 31, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2001 | - | |
| Oct 1, 2001 | Oct 31, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2001 | - | |
| Oct 1, 2001 | Oct 31, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2001 | - | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2000 | - | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2000 | - | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2000 | - | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2000 | - | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2000 | - | |
| Jul 1, 2000 | - | Other | No | No | - | - | - | Resolved | Aug 30, 2000 | - | |
| Jan 1, 1999 | - | TT | Yes | No | - | TT | - | Resolved | Mar 5, 2001 | - | |
| Jan 1, 1999 | - | TT | Yes | No | - | TT | - | Resolved | Mar 5, 2001 | - | |
| Jan 1, 1999 | - | TT | Yes | No | - | TT | - | Resolved | Mar 5, 2001 | - | |
| Jan 1, 1999 | - | TT | Yes | No | - | TT | - | Resolved | Mar 5, 2001 | - | |
| Jan 1, 1999 | - | TT | Yes | No | - | TT | - | Resolved | Mar 5, 2001 | - | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1998 | - | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1998 | - | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1998 | - | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1998 | - | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1998 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Dec 1, 1996 | Dec 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1996 | - | |
| Dec 1, 1996 | Dec 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1996 | - | |
| Dec 1, 1996 | Dec 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1996 | - | |
| Dec 1, 1996 | Dec 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1996 | - | |
| Dec 1, 1996 | Dec 31, 1996 | MCL | Yes | No | - | 5% of samples | - | 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.