LAMONTAI IMPROVEMENT WTR DIST
Oregon - Community Water System - PWSID: OR4100238
System Information
| PWSID | OR4100238 |
| System Name | LAMONTAI IMPROVEMENT WTR DIST |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 12, 1979 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Oregon |
| City | COTTAGE GROVE |
| ZIP Code | 97424 |
| Address | 75105 TARA LN |
| Organization | LAMONTAI IMPROVEMENT WTR DIST |
| Phone | 541-206-3976 |
Population & Service
| Population Served | 255 |
| Service Connections | 98 |
Drinking Water Violations (67)
This water system has 67 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 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Aug 23, 2024 | - | |
| Oct 1, 2023 | - | Other | No | No | - | - | - | Resolved | Dec 5, 2023 | - | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | - | 30 ug/L | - | Resolved | Mar 31, 2017 | - | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Mar 31, 2017 | - | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Mar 31, 2017 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Dec 1, 2009 | Dec 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2009 | - | |
| Dec 1, 2009 | Dec 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2009 | - | |
| Jun 1, 2005 | Jun 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2005 | - | |
| Jun 1, 2005 | Jun 30, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2005 | - | |
| Jun 1, 2005 | Jun 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2005 | - | |
| Jun 1, 2005 | Jun 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2005 | - | |
| Dec 1, 2004 | Dec 31, 2004 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2004 | - | |
| Oct 1, 2004 | Oct 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2004 | - | |
| Oct 1, 2004 | Oct 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2004 | - | |
| Oct 1, 2004 | Oct 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2004 | - | |
| Sep 1, 2004 | Sep 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2004 | - | |
| Sep 1, 2004 | Sep 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2004 | - | |
| Sep 1, 2004 | Sep 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2004 | - | |
| Sep 1, 2004 | Sep 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2004 | - | |
| Aug 1, 2004 | Aug 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2004 | - | |
| Aug 1, 2004 | Aug 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2004 | - | |
| Aug 1, 2004 | Aug 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2004 | - | |
| Aug 1, 2004 | Aug 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2004 | - | |
| Apr 1, 2004 | Apr 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2004 | - | |
| Apr 1, 2004 | Apr 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2004 | - | |
| Apr 1, 2004 | Apr 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2004 | - | |
| Apr 1, 2004 | Apr 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2004 | - | |
| Mar 1, 2003 | Mar 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2003 | - | |
| Nov 1, 2002 | Nov 30, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2002 | - | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2002 | - | |
| May 1, 2002 | May 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2002 | - | |
| Apr 1, 2002 | Apr 30, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2002 | - | |
| Apr 1, 2002 | Apr 30, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2002 | - | |
| Mar 1, 2002 | Mar 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2002 | - | |
| Aug 1, 2001 | Aug 31, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2001 | - | |
| May 1, 2001 | May 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2001 | - | |
| Jan 1, 2001 | Jan 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2001 | - | |
| Oct 1, 2000 | Oct 31, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2000 | - | |
| Oct 1, 2000 | Oct 31, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2000 | - | |
| Sep 1, 2000 | Sep 30, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2000 | - | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1999 | - | |
| Jan 1, 1997 | Dec 31, 1997 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1997 | - |
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.