LAKE GROVE WATER DISTRICT
Oregon - Community Water System - PWSID: OR4100460
System Information
| PWSID | OR4100460 |
| System Name | LAKE GROVE WATER DISTRICT |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| 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 | LAKE OSWEGO |
| ZIP Code | 97035 |
| Address | PO BOX 1173 |
| Organization | LAKE GROVE WATER DISTRICT |
| Phone | 503-636-1617 |
Population & Service
| Population Served | 3,100 |
| Service Connections | 1,234 |
Drinking Water Violations (42)
This water system has 42 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, 2024 | - | Other | No | No | - | - | - | Resolved | Nov 14, 2024 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Jul 24, 2023 | - | |
| Oct 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Oct 26, 2022 | - | |
| Jan 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Jul 10, 2019 | - | |
| Jan 1, 2018 | - | MR | No | No | - | TT | - | Resolved | May 7, 2018 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | - | 0.060 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | - | 0.080 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | - | 0.080 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | - | 0.060 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | No | - | 0.080 mg/L | - | Resolved | Mar 31, 2009 | - | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | No | - | 0.060 mg/L | - | Resolved | Mar 31, 2009 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | No | - | 0.080 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | No | - | 0.060 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 30, 2007 | - | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | No | - | 0.060 mg/L | - | Resolved | Sep 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2007 | - | |
| May 1, 2006 | May 31, 2006 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2006 | - | |
| Aug 1, 2004 | Aug 31, 2004 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2004 | - | |
| Oct 19, 2003 | - | Other | No | No | - | - | - | Resolved | Feb 27, 2004 | - | |
| Oct 1, 2003 | Oct 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2003 | - | |
| Jul 1, 2003 | - | Other | No | No | - | - | - | Resolved | Feb 27, 2004 | - | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2002 | - | |
| Jul 1, 1999 | Jul 31, 1999 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 1999 | - | |
| Apr 1, 1997 | Apr 30, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 1997 | - | |
| Feb 1, 1997 | Feb 28, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 1997 | - | |
| Dec 1, 1996 | Dec 31, 1996 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1996 | - | |
| Jul 1, 1994 | - | MR | No | No | - | TT | - | Resolved | Nov 1, 1997 | - | |
| Jul 1, 1994 | Jul 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 1994 | - | |
| Jul 1, 1993 | Jul 31, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 1993 | - | |
| Sep 1, 1991 | Sep 30, 1991 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1991 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 1991 | - | |
| Mar 1, 1991 | Mar 31, 1991 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 1991 | - | |
| Jan 1, 1991 | Jan 31, 1991 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 1991 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.