COLUMBIA CITY MUN WATERWORKS
Oregon - Community Water System - PWSID: OR4100203
System Information
| PWSID | OR4100203 |
| System Name | COLUMBIA CITY MUN WATERWORKS |
| 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 | COLUMBIA CITY |
| ZIP Code | 97018 |
| Address | PO BOX 189 |
| Organization | COLUMBIA CITY MUN WATERWORKS |
| Phone | 503-366-0454 |
Population & Service
| Population Served | 1,995 |
| Service Connections | 876 |
Drinking Water Violations (81)
This water system has 81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Mar 10, 2025 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Jul 8, 2024 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Aug 15, 2023 | - | |
| Jan 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Apr 5, 2022 | - | |
| Apr 1, 2021 | Apr 30, 2021 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2021 | - | |
| Jan 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Jun 7, 2021 | - | |
| Jul 1, 2016 | Jul 31, 2016 | MR | No | Yes | - | - | - | Archived | Jul 31, 2016 | - | |
| Feb 1, 2015 | Feb 28, 2015 | MR | No | Yes | - | - | - | Resolved | Feb 28, 2015 | - | |
| Nov 1, 2014 | Nov 30, 2014 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2014 | - | |
| Aug 1, 2014 | Aug 31, 2014 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2014 | - | |
| Sep 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2012 | - | |
| Sep 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2012 | - | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Mar 31, 2012 | - | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Mar 31, 2012 | - | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Mar 31, 2012 | - | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Mar 31, 2012 | - | |
| 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 | - | 0.080 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 | - | 0.060 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | Yes | - | 1 mg/L | - | Resolved | Mar 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | - | 1 mg/L | - | Resolved | Sep 30, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2008 | - |
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.