USFS WILLIAMSON RIVER CG
Oregon — Transient Non-Community — PWSID: OR4192825
System Information
| PWSID | OR4192825 |
| System Name | USFS WILLIAMSON RIVER CG |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 10, 1980 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Oregon |
| City | CHILOQUIN |
| ZIP Code | 97624 |
| Address | 38500 US-97 N |
| Organization | USFS WILLIAMSON RIVER CG |
| Phone | 541-880-3450 |
Population & Service
| Population Served | 50 |
| Service Connections | 1 |
Drinking Water Violations (51)
This water system has 51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| May 1, 2024 | May 31, 2024 | MON | No | Yes | — | — | — | Resolved | May 31, 2024 | — | |
| Jul 1, 2021 | Jul 31, 2021 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2021 | — | |
| Jan 1, 2021 | Dec 31, 2021 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2021 | — | |
| Jun 1, 2017 | Jun 30, 2017 | MON | No | Yes | — | — | — | Resolved | Jun 30, 2017 | — | |
| May 1, 2017 | May 31, 2017 | MON | No | Yes | — | — | — | Resolved | May 31, 2017 | — | |
| May 1, 2016 | May 31, 2016 | MON | No | Yes | — | — | — | Archived | May 31, 2016 | — | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2016 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2014 | — | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2006 | — | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | — | |
| Oct 1, 2003 | Oct 31, 2003 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2003 | — | |
| Oct 1, 2003 | Oct 31, 2003 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2003 | — | |
| Jul 1, 2003 | Sep 30, 2003 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2003 | — | |
| Jan 1, 2003 | Dec 31, 2003 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2003 | — | |
| Jul 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Jul 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Apr 1, 2002 | Jun 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2002 | — | |
| Apr 1, 2002 | Jun 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2001 | — | |
| Apr 1, 2001 | Jun 30, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2001 | — | |
| Apr 1, 2001 | Jun 30, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2001 | — | |
| Jan 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2000 | Dec 31, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | — | |
| Oct 1, 2000 | Dec 31, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1998 | — | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1998 | — | |
| Apr 1, 1998 | Jun 30, 1998 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1998 | — | |
| Apr 1, 1998 | Jun 30, 1998 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1998 | — | |
| Jul 1, 1997 | Sep 30, 1997 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1997 | — | |
| Jul 1, 1997 | Sep 30, 1997 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1997 | — | |
| Jan 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1997 | — | |
| Jul 1, 1996 | Sep 30, 1996 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1996 | — | |
| Jul 1, 1996 | Sep 30, 1996 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1996 | — | |
| Apr 1, 1996 | Jun 30, 1996 | MR | No | No | — | 5% of samples | — | Resolved | Jun 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, 1995 | Sep 30, 1995 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1995 | — | |
| Jul 1, 1992 | Sep 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1992 | — | |
| Jul 1, 1992 | Sep 30, 1992 | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 1992 | — | |
| Apr 1, 1992 | Jun 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1992 | — | |
| Jul 1, 1991 | Sep 30, 1991 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1991 | — | |
| Jul 1, 1991 | Sep 30, 1991 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 1991 | — | |
| — | — | — | 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.