KNOLLCREST
Wisconsin - Community Water System - PWSID: WI2681104
System Information
| PWSID | WI2681104 |
| System Name | KNOLLCREST |
| 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 | Jan 21, 1983 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Wisconsin |
| City | MIDDLETON |
| ZIP Code | 53562 |
| Address | PO BOX 620800 |
| Organization | TAPP, RODNEY - MERIDIAN GROUP PRESIDENT |
| Phone | - |
Population & Service
| Population Served | 66 |
| Service Connections | 52 |
Drinking Water Violations (335)
This water system has 335 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 2021 | Aug 31, 2021 | MCL | Yes | No | 10.95 UG/L | 0.006 mg/L | 6.5 | Resolved | Aug 31, 2021 | - | |
| Aug 1, 2021 | Aug 31, 2021 | MCL | Yes | No | 10.95 UG/L | 0.006 mg/L | 6.5 | Resolved | Aug 31, 2021 | - | |
| Aug 1, 2021 | Aug 31, 2021 | MCL | Yes | No | 10.95 UG/L | 0.006 mg/L | 6.5 | Resolved | Aug 31, 2021 | - | |
| Aug 1, 2021 | Aug 31, 2021 | MCL | Yes | No | 10.95 UG/L | 0.006 mg/L | 6.5 | Resolved | Aug 31, 2021 | - | |
| Aug 1, 2021 | Aug 31, 2021 | MCL | Yes | No | 10.95 UG/L | 0.006 mg/L | 6.5 | Resolved | Aug 31, 2021 | - | |
| Aug 1, 2021 | Aug 31, 2021 | MCL | Yes | No | 10.95 UG/L | 0.006 mg/L | 6.5 | Resolved | Aug 31, 2021 | - | |
| Aug 1, 2021 | Aug 31, 2021 | MCL | Yes | No | 10.95 UG/L | 0.006 mg/L | 6.5 | Resolved | Aug 31, 2021 | - | |
| Jan 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Mar 1, 2021 | - | |
| Jan 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Mar 1, 2021 | - | |
| Jan 1, 2011 | Jun 29, 2011 | MCL | Yes | No | 11.96 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Jan 1, 2011 | Jun 29, 2011 | MCL | Yes | No | 11.96 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Jan 1, 2011 | Jun 29, 2011 | MCL | Yes | No | 11.96 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Jan 1, 2011 | Jun 29, 2011 | MCL | Yes | No | 11.96 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Jan 1, 2011 | Jun 29, 2011 | MCL | Yes | No | 11.96 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Jan 1, 2011 | Jun 29, 2011 | MCL | Yes | No | 11.96 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Oct 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 11.58 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Oct 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 11.58 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Oct 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 11.58 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Oct 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 11.58 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Oct 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 11.58 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Oct 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 11.58 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Jul 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15.85 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Jul 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15.85 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Jul 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15.85 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Jul 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15.85 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Jul 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15.85 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Jul 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15.85 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Apr 1, 2010 | Jun 29, 2011 | MCL | Yes | No | 15 UG/L | 0.006 mg/L | 6.5 | Resolved | Jun 29, 2011 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Feb 6, 2006 | - | |
| Jan 1, 2005 | - | Other | No | No | - | - | - | Resolved | Feb 27, 2006 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Feb 6, 2006 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Feb 6, 2006 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Feb 6, 2006 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Feb 6, 2006 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2003 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2003 | - |
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.