SOUTH UMPQUA WATER ASSOCIATION
Oregon - Community Water System - PWSID: OR4100705
System Information
| PWSID | OR4100705 |
| System Name | SOUTH UMPQUA WATER ASSOCIATION |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 12, 1979 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Oregon |
| City | RIDDLE |
| ZIP Code | 97469 |
| Address | PO BOX 106 |
| Organization | SOUTH UMPQUA WATER ASSOCIATION |
| Phone | 541-874-2387 |
Population & Service
| Population Served | 575 |
| Service Connections | 287 |
Drinking Water Violations (33)
This water system has 33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 1, 2025 | Mar 31, 2025 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2025 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Jun 17, 2024 | - | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | - | 7 MFL | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Mar 31, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Mar 31, 2015 | - | |
| Dec 1, 2012 | Dec 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2012 | - | |
| Dec 1, 2012 | Dec 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Jan 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2012 | - | |
| Jan 1, 2012 | Jan 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2012 | - | |
| Jan 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2010 | - | |
| Jan 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2010 | - | |
| May 1, 2009 | May 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2009 | - | |
| May 1, 2009 | May 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2009 | - | |
| Jan 1, 2009 | Jan 31, 2009 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Jan 31, 2009 | - | |
| Jan 1, 2009 | Jan 31, 2009 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Jan 31, 2009 | - | |
| Nov 1, 2008 | Nov 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2008 | - | |
| Oct 1, 2008 | Oct 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2008 | - | |
| Oct 1, 2007 | Oct 31, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Oct 19, 2004 | - | Other | No | No | - | - | - | Resolved | Nov 26, 2004 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Nov 26, 2004 | - | |
| Oct 19, 2002 | - | Other | No | No | - | - | - | Resolved | Mar 25, 2003 | - | |
| Apr 1, 2001 | Apr 30, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2001 | - | |
| Sep 1, 2000 | Sep 30, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2000 | - | |
| Sep 1, 2000 | Sep 30, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2000 | - | |
| Feb 1, 1998 | Feb 28, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 1998 | - | |
| Oct 1, 1995 | Oct 31, 1995 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1995 | - | |
| Apr 1, 1994 | Apr 30, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 1994 | - | |
| Nov 1, 1993 | Nov 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1993 | - | |
| Sep 1, 1992 | Sep 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1992 | - | |
| Mar 1, 1992 | Mar 31, 1992 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 1992 | - | |
| - | - | - | 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.