UNION, CITY OF
Oregon - Community Water System - PWSID: OR4100915
System Information
| PWSID | OR4100915 |
| System Name | UNION, CITY OF |
| 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 | UNION |
| ZIP Code | 97883 |
| Address | PO BOX 529 |
| Organization | UNION, CITY OF |
| Phone | 541-910-9399 |
Population & Service
| Population Served | 2,162 |
| Service Connections | 958 |
Drinking Water Violations (28)
This water system has 28 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 | - | Other | No | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| Jun 1, 2020 | Jun 30, 2020 | MON | No | No | - | - | - | Resolved | Jun 30, 2020 | - | |
| Sep 18, 2015 | - | Other | No | No | - | - | - | Resolved | Oct 22, 2015 | - | |
| Jul 1, 2015 | Jul 31, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2015 | - | |
| Jul 1, 2015 | Jul 31, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2015 | - | |
| Jul 1, 2015 | Jul 31, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2015 | - | |
| Mar 1, 2011 | Mar 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2011 | - | |
| Mar 1, 2011 | Mar 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2011 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2000 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2000 | - | |
| Jun 1, 1999 | Jun 30, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1999 | - | |
| Jun 1, 1999 | Jun 30, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1999 | - | |
| Apr 1, 1997 | Apr 30, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 1997 | - | |
| Apr 1, 1997 | Apr 30, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 1997 | - | |
| Jan 1, 1997 | Dec 31, 1997 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1996 | - | |
| Mar 1, 1996 | Mar 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 1996 | - | |
| Mar 1, 1996 | Mar 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 1996 | - | |
| Jul 1, 1994 | - | MR | No | No | - | TT | - | Resolved | Dec 22, 1994 | - | |
| Apr 1, 1994 | Apr 30, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 1994 | - | |
| Aug 1, 1991 | Aug 31, 1991 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 1991 | - | |
| Jun 1, 1976 | May 31, 1980 | MR | No | No | - | 5 pCi/L | - | Archived | May 31, 1980 | - | |
| Jun 1, 1976 | May 31, 1980 | MR | No | No | - | 15 pCi/L | - | Archived | May 31, 1980 | - | |
| - | - | - | 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.