LOCKPORT TOWNSHIP
Michigan - Community Water System - PWSID: MI0003943
System Information
| PWSID | MI0003943 |
| System Name | LOCKPORT TOWNSHIP |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 3, 1981 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Michigan |
| City | CENTREVILLE |
| ZIP Code | 49032 |
| Address | 20593 MAJOR RD |
| Organization | MAJOR, MARK |
| Phone | 269-816-0904 |
Population & Service
| Population Served | 1,778 |
| Service Connections | 700 |
Drinking Water Violations (58)
This water system has 58 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 2020 | Sep 30, 2020 | MON | No | No | - | - | - | Resolved | Sep 30, 2020 | - | |
| Sep 1, 2020 | Sep 30, 2020 | MON | No | No | - | - | - | Resolved | Sep 30, 2020 | - | |
| Sep 1, 2020 | Sep 30, 2020 | MON | No | No | - | - | - | Resolved | Sep 30, 2020 | - | |
| Dec 1, 2013 | Dec 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 9, 2013 | - | |
| Dec 1, 2013 | Dec 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 9, 2013 | - | |
| Dec 1, 2013 | Dec 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 9, 2013 | - | |
| Dec 1, 2013 | Dec 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 9, 2013 | - | |
| Dec 1, 2013 | Dec 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 9, 2013 | - | |
| Nov 1, 2012 | Nov 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2012 | - | |
| Nov 1, 2012 | Nov 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2012 | - | |
| May 1, 2012 | May 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2012 | - | |
| May 1, 2012 | May 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2012 | - | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2012 | - | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2012 | - | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2012 | - | |
| Sep 1, 2011 | Sep 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2011 | - | |
| Sep 1, 2011 | Sep 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2011 | - | |
| Sep 1, 2011 | Sep 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2011 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Nov 1, 2010 | Nov 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2010 | - | |
| Nov 1, 2010 | Nov 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2010 | - | |
| Nov 1, 2010 | Nov 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2010 | - | |
| Nov 1, 2008 | Nov 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2008 | - | |
| Nov 1, 2008 | Nov 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2008 | - | |
| Nov 1, 2008 | Nov 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2008 | - | |
| Nov 1, 2008 | Nov 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2008 | - | |
| Dec 1, 2007 | Dec 31, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2007 | - | |
| Dec 1, 2007 | Dec 31, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2007 | - | |
| Dec 1, 2007 | Dec 31, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2007 | - | |
| Dec 1, 2007 | Dec 31, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2007 | - | |
| Jun 1, 2004 | Jun 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2004 | - | |
| Jun 1, 2004 | Jun 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2004 | - | |
| Jun 1, 2004 | Jun 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2004 | - | |
| Jun 1, 2004 | Jun 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2004 | - | |
| Jun 1, 2004 | Jun 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2004 | - | |
| Aug 1, 1999 | Aug 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1999 | - | |
| Aug 1, 1999 | Aug 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1999 | - | |
| Aug 1, 1999 | Aug 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1999 | - | |
| Aug 1, 1999 | Aug 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1999 | - | |
| Aug 1, 1999 | Aug 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1999 | - | |
| Jul 1, 1999 | Sep 30, 1999 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1999 | - | |
| Jul 1, 1999 | Jul 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1999 | - | |
| Jul 1, 1999 | Jul 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1999 | - | |
| Jul 1, 1999 | Jul 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1999 | - | |
| Jul 1, 1999 | Jul 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1999 | - |
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.