GLENMORRIE COOPERATIVE ASSN
Oregon — Community Water System — PWSID: OR4100459
System Information
| PWSID | OR4100459 |
| System Name | GLENMORRIE COOPERATIVE ASSN |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 12, 1979 |
| Last Reported | Dec 23, 2025 |
Location & Contact
| State | Oregon |
| City | LAKE OSWEGO |
| ZIP Code | 97034 |
| Address | P.O. BOX 327 |
| Organization | GLENMORRIE COOPERATIVE ASSN |
| Phone | 503-317-6176 |
Population & Service
| Population Served | 300 |
| Service Connections | 146 |
Drinking Water Violations (19)
This water system has 19 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 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 24, 2024 | Consumer Confidence Rule |
| Jul 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Feb 5, 2024 | Consumer Confidence Rule |
| Oct 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 16, 2020 | Lead and Copper Rule |
| Nov 1, 2010 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Jan 11, 2011 | Ground Water Rule |
| Nov 1, 2010 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Jan 11, 2011 | Ground Water Rule |
| Aug 1, 2006 | Aug 31, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2006 | Total Coliform Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 25, 2010 | Lead and Copper Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 25, 2010 | Lead and Copper Rule |
| Jan 1, 2003 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 25, 2010 | Lead and Copper Rule |
| Jan 1, 2003 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 25, 2010 | Lead and Copper Rule |
| Oct 19, 1999 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 3, 2000 | Consumer Confidence Rule |
| Dec 1, 1992 | Dec 31, 1992 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 1992 | Total Coliform Rule |
| Dec 1, 1992 | Dec 31, 1992 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Dec 31, 1992 | Total Coliform Rule |
| Dec 1, 1991 | Dec 31, 1991 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 1991 | Total Coliform Rule |
| Dec 1, 1991 | Dec 31, 1991 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Dec 31, 1991 | Total Coliform Rule |
| Nov 1, 1991 | Nov 30, 1991 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Nov 30, 1991 | Total Coliform Rule |
| Nov 1, 1991 | Nov 30, 1991 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1991 | Total Coliform Rule |
| Jun 1, 1976 | May 31, 1980 | Gross Alpha, Excl. Radon and U | MR | No | No | — | 15 pCi/L | — | Archived | May 31, 1980 | Radionuclides and Revised Rad Rule |
| Jun 1, 1976 | May 31, 1980 | Combined Radium (-226 and -228) | MR | No | No | — | 5 pCi/L | — | Archived | May 31, 1980 | Radionuclides and Revised Rad Rule |
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.