OROSI HIGH SCHOOL
California - Non-Transient Non-Community - PWSID: CA5400636
System Information
| PWSID | CA5400636 |
| System Name | OROSI HIGH SCHOOL |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Non-Inventory |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Jan 27, 1983 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | OROSI |
| ZIP Code | 93647 |
| Address | 12623 AVE 416 |
| Organization | SOGHOMONIAN, RAFFI |
| Phone | 559-528-4763 |
Population & Service
| Population Served | 1,200 |
| Service Connections | 8 |
Drinking Water Violations (102)
This water system has 102 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, 2022 | Mar 31, 2022 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Mar 31, 2022 | - | |
| Jan 1, 2022 | Mar 31, 2022 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Mar 31, 2022 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Resolved | Dec 31, 2021 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Resolved | Dec 31, 2021 | - | |
| Jul 1, 2021 | Sep 30, 2021 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Jul 1, 2021 | Sep 30, 2021 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Jul 1, 2021 | Sep 30, 2021 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Apr 1, 2021 | Apr 30, 2021 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2021 | - | |
| Apr 1, 2021 | Apr 30, 2021 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2021 | - | |
| Apr 1, 2021 | Jun 30, 2021 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Resolved | Jun 30, 2021 | - | |
| Apr 1, 2021 | Jun 30, 2021 | MCL | Yes | No | 12 MG/L | 10 mg/L | 10 | Resolved | Jun 30, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Mar 31, 2021 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Dec 31, 2020 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Dec 31, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2020 | - | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Mar 31, 2020 | - | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Mar 31, 2020 | - | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Jun 30, 2019 | - | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Jun 30, 2019 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Nov 7, 2018 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Nov 7, 2018 | - | |
| Apr 1, 2018 | Jun 30, 2018 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Jun 30, 2018 | - | |
| Apr 1, 2018 | Jun 30, 2018 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Jun 30, 2018 | - | |
| Jan 1, 2018 | Mar 31, 2018 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 2018 | - | |
| Jan 1, 2018 | Mar 31, 2018 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 2018 | - | |
| Jan 1, 2018 | Mar 31, 2018 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 2018 | - | |
| Jan 1, 2018 | Mar 31, 2018 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 2018 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | 11 MG/L | 10 mg/L | 10 | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2015 | - | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2015 | - | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2015 | - | |
| Nov 1, 2013 | Nov 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2013 | - | |
| Nov 1, 2013 | Nov 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2013 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Sep 28, 2012 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Sep 28, 2012 | - | |
| Oct 1, 2011 | Oct 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2011 | - | |
| Oct 1, 2011 | Oct 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2011 | - | |
| May 1, 2011 | May 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2011 | - | |
| May 1, 2011 | May 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2011 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Feb 1, 2008 | Feb 29, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Feb 29, 2008 | - | |
| Feb 1, 2008 | Feb 29, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Feb 29, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MCL | Yes | No | 90.1 MG/L | 10 mg/L | 45 | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MCL | Yes | No | 90.1 MG/L | 10 mg/L | 45 | Resolved | Dec 31, 2008 | - |
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.