HERMISTON POWER LLC
Oregon — Non-Transient Non-Community — PWSID: OR4194561
System Information
| PWSID | OR4194561 |
| System Name | HERMISTON POWER LLC |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Non-Inventory |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Aug 8, 1988 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Oregon |
| City | HERMISTON |
| ZIP Code | 97838 |
| Address | PO BOX 850 |
| Organization | — |
| Phone | 541-564-5176 |
Population & Service
| Population Served | 22 |
| Service Connections | 2 |
Drinking Water Violations (23)
This water system has 23 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, 2020 | Oct 31, 2020 | MCL | Yes | No | 12.6 MG/L | 10 mg/L | 10.49 | Resolved | Jan 5, 2005 | — | |
| Oct 1, 2020 | Oct 31, 2020 | MCL | Yes | No | 12.6 MG/L | 10 mg/L | 10.49 | Resolved | Jan 5, 2005 | — | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 11.9 MG/L | 10 mg/L | 10.49 | Resolved | Jan 5, 2005 | — | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 11.9 MG/L | 10 mg/L | 10.49 | Resolved | Jan 5, 2005 | — | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 11.9 MG/L | 10 mg/L | 10.49 | Resolved | Jan 5, 2005 | — | |
| Oct 1, 2019 | Dec 31, 2019 | MON | No | Yes | — | — | — | Resolved | Jan 5, 2005 | — | |
| Nov 1, 2010 | Nov 30, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Jan 5, 2005 | — | |
| Nov 1, 2010 | Nov 30, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Jan 5, 2005 | — | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 5, 2005 | — | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | Yes | — | — | — | Archived | Jan 5, 2005 | — | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 5, 2005 | — | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 5, 2005 | — | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 5, 2005 | — | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Jan 5, 2005 | — | |
| Jan 1, 2008 | Mar 31, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Jan 5, 2005 | — | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Jan 5, 2005 | — | |
| Jan 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1997 | — | |
| Apr 1, 1996 | Apr 30, 1996 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 1996 | — | |
| Apr 1, 1996 | Jun 30, 1996 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1996 | — | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1996 | — | |
| Jul 1, 1991 | Sep 30, 1991 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1991 | — | |
| — | — | — | 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.