MATAGUAY SCOUT RESERVATION
California — Transient Non-Community — PWSID: CA3701965
System Information
| PWSID | CA3701965 |
| System Name | MATAGUAY SCOUT RESERVATION |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | SAN DIEGO |
| ZIP Code | 92103 |
| Address | 1201 Upas St |
| Organization | ROY, SEAN |
| Phone | 619-298-6121 |
Population & Service
| Population Served | 4,000 |
| Service Connections | 68 |
Drinking Water Violations (35)
This water system has 35 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, 2023 | Dec 31, 2023 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Dec 31, 2023 | Revised Total Coliform Rule |
| Oct 1, 2023 | Dec 31, 2023 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Dec 31, 2023 | Revised Total Coliform Rule |
| Oct 1, 2022 | Dec 31, 2022 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Dec 31, 2022 | Revised Total Coliform Rule |
| Oct 1, 2022 | Dec 31, 2022 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Dec 31, 2022 | Revised Total Coliform Rule |
| Jan 1, 2020 | Dec 31, 2022 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jan 1, 2020 | Dec 31, 2022 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Apr 1, 2018 | Jun 30, 2018 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Jun 30, 2018 | Revised Total Coliform Rule |
| Apr 1, 2018 | Jun 30, 2018 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Jun 30, 2018 | Revised Total Coliform Rule |
| Oct 1, 2015 | Dec 31, 2015 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2015 | Total Coliform Rule |
| Oct 1, 2015 | Dec 31, 2015 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2015 | Total Coliform Rule |
| Jul 1, 2014 | Sep 30, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2014 | Total Coliform Rule |
| Jul 1, 2014 | Sep 30, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2014 | Total Coliform Rule |
| Oct 1, 2013 | Dec 31, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2013 | Total Coliform Rule |
| Oct 1, 2013 | Dec 31, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2013 | Total Coliform Rule |
| Oct 1, 2011 | Dec 31, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2011 | Total Coliform Rule |
| Oct 1, 2011 | Dec 31, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2011 | Total Coliform Rule |
| Apr 1, 2011 | Jun 30, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2011 | Total Coliform Rule |
| Apr 1, 2011 | Jun 30, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2011 | Total Coliform Rule |
| Apr 1, 2009 | Jun 30, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2009 | Total Coliform Rule |
| Apr 1, 2009 | Jun 30, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2009 | Total Coliform Rule |
| Jan 1, 2008 | Mar 31, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2008 | Total Coliform Rule |
| Jan 1, 2008 | Mar 31, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2008 | Total Coliform Rule |
| Jul 1, 2007 | Sep 30, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2007 | Total Coliform Rule |
| Jul 1, 2007 | Sep 30, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2007 | Total Coliform Rule |
| Apr 1, 2007 | Jun 30, 2007 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Jun 30, 2007 | Nitrate Rule |
| Apr 1, 2007 | Jun 30, 2007 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Jun 30, 2007 | Nitrate Rule |
| Jan 1, 2007 | Mar 31, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2007 | Total Coliform Rule |
| Jan 1, 2007 | Mar 31, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2007 | Total Coliform Rule |
| Jul 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2006 | Total Coliform Rule |
| Jul 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2006 | Total Coliform Rule |
| Apr 1, 2005 | Jun 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2005 | Total Coliform Rule |
| Apr 1, 2005 | Jun 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2005 | Total Coliform Rule |
| Aug 1, 1984 | Aug 31, 1984 | Other | No | No | — | — | — | Archived | Aug 31, 1984 | Miscellaneous Other Rules | |
| Apr 1, 1984 | Apr 30, 1984 | Other | No | No | — | — | — | Archived | Apr 30, 1984 | Miscellaneous Other Rules | |
| — | — | — | 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.