JEFFERSON ESD-JEFFERSON SCHOOL
California - Non-Transient Non-Community - PWSID: CA3901107
System Information
| PWSID | CA3901107 |
| System Name | JEFFERSON ESD-JEFFERSON SCHOOL |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Jan 5, 1981 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | TRACY |
| ZIP Code | 95377 |
| Address | 1219 Whispering Wind Dr. |
| Organization | SCHOOL DIST, JEFFERSON |
| Phone | 209-835-3968 |
Population & Service
| Population Served | 483 |
| Service Connections | 4 |
Drinking Water Violations (21)
This water system has 21 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 17, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jul 1, 2012 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jul 1, 2012 | - | |
| Mar 1, 2011 | Mar 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 1, 2011 | - | |
| Mar 1, 2011 | Mar 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 1, 2011 | - | |
| Dec 1, 2001 | Dec 31, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2001 | - | |
| Dec 1, 2001 | Dec 31, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2001 | - | |
| Apr 1, 2001 | Apr 30, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2001 | - | |
| Apr 1, 2001 | Apr 30, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2001 | - | |
| Jan 1, 2001 | Jan 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2001 | - | |
| Jan 1, 2001 | Jan 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2001 | - | |
| Nov 1, 2000 | Nov 30, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2000 | - | |
| Nov 1, 2000 | Nov 30, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2000 | - | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2000 | - | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2000 | - | |
| Jul 1, 2000 | Jul 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2000 | - | |
| Jul 1, 2000 | Jul 31, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2000 | - | |
| Oct 26, 1989 | Oct 25, 1990 | MCL | Yes | No | - | 10 mg/L | - | Archived | Oct 25, 1990 | - | |
| - | - | - | 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.