SAN JOAQUIN COUNTY - THORNTON
California — Community Water System — PWSID: CA3910009
System Information
| PWSID | CA3910009 |
| System Name | SAN JOAQUIN COUNTY - THORNTON |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 5, 1981 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | STOCKTON |
| ZIP Code | 95205 |
| Address | 1702 E. Scotts Ave. |
| Organization | IRONS, CLINTON |
| Phone | 209-468-3090 |
Population & Service
| Population Served | 964 |
| Service Connections | 292 |
Drinking Water Violations (7)
This water system has 7 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2009 | Jul 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2009 | Total Coliform Rule |
| Jul 1, 2009 | Jul 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2009 | Total Coliform Rule |
| Jan 1, 2004 | Jan 31, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 15, 2004 | Total Coliform Rule |
| Jan 1, 2004 | Jan 31, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 15, 2004 | Total Coliform Rule |
| Jan 1, 1994 | Jan 31, 1994 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 1994 | Total Coliform Rule |
| Jan 1, 1994 | Jan 31, 1994 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 1994 | Total Coliform Rule |
| Aug 1, 1985 | Aug 31, 1985 | Other | No | No | — | — | — | Archived | Aug 31, 1985 | Miscellaneous Other Rules |
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.