IRRIGON, CITY OF
Oregon — Community Water System — PWSID: OR4100403
System Information
| PWSID | OR4100403 |
| System Name | IRRIGON, 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 | Dec 23, 2025 |
Location & Contact
| State | Oregon |
| City | IRRIGON |
| ZIP Code | 97844 |
| Address | 500 NE MAIN AVE |
| Organization | IRRIGON, CITY OF |
| Phone | 541-922-3047 |
Population & Service
| Population Served | 2,133 |
| Service Connections | 720 |
Drinking Water Violations (20)
This water system has 20 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, 2025 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 22, 2025 | Consumer Confidence Rule |
| Oct 13, 2024 | — | E. COLI | MR | No | Yes | — | — | — | Unaddressed | — | Ground Water Rule |
| Jul 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 26, 2023 | Consumer Confidence Rule |
| Dec 1, 2015 | Dec 31, 2015 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Dec 31, 2015 | Ground Water Rule |
| Dec 1, 2015 | Dec 31, 2015 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Dec 31, 2015 | Ground Water Rule |
| Nov 1, 2015 | Nov 30, 2015 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Nov 30, 2015 | Ground Water Rule |
| Nov 1, 2015 | Nov 30, 2015 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Nov 30, 2015 | Ground Water Rule |
| Feb 1, 2006 | Feb 28, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2006 | Total Coliform Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MCL | Yes | No | 10.62 MG/L | 10 mg/L | 10.49 | Resolved | Dec 31, 2005 | Nitrate Rule |
| Nov 1, 2004 | Nov 30, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2004 | Total Coliform Rule |
| Oct 19, 2003 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Mar 3, 2004 | Consumer Confidence Rule |
| Jul 1, 2003 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Mar 3, 2004 | Consumer Confidence Rule |
| Jul 1, 2002 | Jul 31, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2002 | Total Coliform Rule |
| Jan 1, 1998 | Dec 31, 1998 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1998 | Nitrate Rule |
| Jul 1, 1997 | Jul 31, 1997 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 1997 | Total Coliform Rule |
| Apr 1, 1996 | Apr 30, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 1996 | Total Coliform Rule |
| Mar 1, 1996 | Mar 31, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 1996 | Total Coliform Rule |
| Apr 1, 1993 | Apr 30, 1993 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 1993 | Total Coliform 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 |
| 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 |
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.