WEST UNION ELEM SD 1
Oregon — Non-Transient Non-Community — PWSID: OR4193774
System Information
| PWSID | OR4193774 |
| System Name | WEST UNION ELEM SD 1 |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 10 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Jan 12, 1983 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Oregon |
| City | HILLSBORO |
| ZIP Code | 97124 |
| Address | 7705 NE JACOBSEN ST |
| Organization | WEST UNION ELEM SD 1 |
| Phone | 971-246-1045 |
Population & Service
| Population Served | 350 |
| Service Connections | 1 |
Drinking Water Violations (124)
This water system has 124 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 | Dec 31, 2025 | MR | No | Yes | — | 1 mg/L | — | Archived | Dec 31, 2025 | — | |
| May 1, 2016 | May 31, 2016 | MON | No | Yes | — | — | — | Archived | May 31, 2016 | — | |
| Apr 1, 2016 | Apr 30, 2016 | MON | No | Yes | — | — | — | Archived | Apr 30, 2016 | — | |
| Jul 1, 2013 | Sep 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2013 | — | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2013 | — | |
| 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 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2011 | — | |
| Jan 1, 2010 | Dec 31, 2010 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Dec 31, 2010 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2010 | — | |
| Feb 1, 2007 | Feb 28, 2007 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2003 | Mar 31, 2003 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2003 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 2 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 2 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2010 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.0004 mg/L | — | Resolved | Dec 31, 2004 | — |
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.