SENIOR CANYON MUTUAL WATER CO
California - Community Water System - PWSID: CA5601117
System Information
| PWSID | CA5601117 |
| System Name | SENIOR CANYON MUTUAL WATER CO |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | OJAI |
| ZIP Code | 93024 |
| Address | PO Box 600 |
| Organization | THIELKE, PETER |
| Phone | 805-798-2971 |
Population & Service
| Population Served | 800 |
| Service Connections | 249 |
Drinking Water Violations (42)
This water system has 42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2017 | - | MR | No | No | - | TT | - | Resolved | Jul 19, 2018 | - | |
| Oct 1, 2017 | - | MR | No | No | - | TT | - | Resolved | Jul 19, 2018 | - | |
| May 1, 2017 | May 31, 2017 | TT | Yes | No | - | - | - | Resolved | May 31, 2017 | - | |
| May 1, 2017 | May 31, 2017 | TT | Yes | No | - | - | - | Resolved | May 31, 2017 | - | |
| Oct 1, 2016 | Oct 31, 2016 | Other | No | No | - | 5% of samples | - | Resolved | Oct 31, 2016 | - | |
| Oct 1, 2016 | Oct 31, 2016 | MCL | Yes | No | - | - | - | Resolved | Oct 31, 2016 | - | |
| Oct 1, 2016 | Oct 31, 2016 | MCL | Yes | No | - | - | - | Resolved | Oct 31, 2016 | - | |
| Oct 1, 2016 | Oct 31, 2016 | Other | No | No | - | 5% of samples | - | Resolved | Oct 31, 2016 | - | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2012 | - | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2012 | - | |
| Jun 1, 2010 | - | MR | No | No | - | TT | - | Resolved | Jun 25, 2012 | - | |
| Jun 1, 2010 | - | MR | No | No | - | TT | - | Resolved | Jun 25, 2012 | - | |
| May 1, 2010 | May 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2010 | - | |
| May 1, 2010 | May 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2010 | - | |
| Dec 1, 2009 | Dec 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2009 | - | |
| Dec 1, 2009 | Dec 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2009 | - | |
| Nov 1, 2007 | Nov 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2007 | - | |
| Nov 1, 2007 | Nov 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2007 | - | |
| Apr 1, 2004 | Sep 30, 2004 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 30, 2004 | - | |
| Apr 1, 2004 | Sep 30, 2004 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 30, 2004 | - | |
| Apr 1, 2004 | Sep 30, 2004 | MR | No | No | - | 0.060 mg/L | - | Resolved | Sep 30, 2004 | - | |
| Apr 1, 2004 | Sep 30, 2004 | MR | No | No | - | 0.060 mg/L | - | Resolved | Sep 30, 2004 | - | |
| Apr 1, 2004 | Sep 30, 2004 | MR | No | No | - | 0.060 mg/L | - | Resolved | Sep 30, 2004 | - | |
| Apr 1, 2004 | Sep 30, 2004 | MR | No | No | - | 0.080 mg/L | - | Resolved | Sep 30, 2004 | - | |
| Aug 1, 2003 | Aug 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Aug 3, 1998 | - | |
| Aug 1, 2003 | Aug 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Aug 3, 1998 | - | |
| Jul 1, 2001 | Jul 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Aug 3, 1998 | - | |
| Jul 1, 2001 | Jul 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Aug 3, 1998 | - | |
| Dec 1, 2000 | Dec 31, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Aug 3, 1998 | - | |
| Dec 1, 2000 | Dec 31, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Aug 3, 1998 | - | |
| Jan 1, 1998 | Jan 31, 1998 | TT | Yes | No | - | - | - | Resolved | Jan 31, 1998 | - | |
| Jan 1, 1998 | Jan 31, 1998 | TT | Yes | No | - | - | - | Resolved | Jan 31, 1998 | - | |
| Jun 1, 1996 | Jun 30, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1996 | - | |
| Jun 1, 1996 | Jun 30, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1996 | - | |
| Apr 1, 1995 | Apr 30, 1995 | TT | Yes | No | - | - | - | Resolved | Apr 30, 1995 | - | |
| Apr 1, 1995 | Apr 30, 1995 | TT | Yes | No | - | - | - | Resolved | Apr 30, 1995 | - | |
| Aug 1, 1984 | Aug 31, 1984 | Other | No | No | - | - | - | Archived | Aug 31, 1984 | - | |
| Jul 1, 1984 | Jul 31, 1984 | Other | No | No | - | - | - | Archived | Jul 31, 1984 | - | |
| Oct 1, 1981 | Sep 30, 1982 | MR | No | Yes | - | 15 pCi/L | - | Archived | Sep 30, 1982 | - | |
| Oct 30, 1980 | Oct 29, 1981 | MR | No | Yes | - | 15 pCi/L | - | Archived | Oct 29, 1981 | - |
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.