CITY OF SOUTH PASADENA
California — Community Water System — PWSID: CA1910154
System Information
| PWSID | CA1910154 |
| System Name | CITY OF SOUTH PASADENA |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | SOUTH PASADENA |
| ZIP Code | 91030 |
| Address | 825 MISSION STREET |
| Organization | TESFAYE, ANTENEH |
| Phone | 626-460-6393 |
Population & Service
| Population Served | 25,329 |
| Service Connections | 6,147 |
Drinking Water Violations (6)
This water system has 6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 1, 1999 | Dec 31, 1999 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 1999 | Total Coliform Rule |
| Dec 1, 1999 | Dec 31, 1999 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 1999 | Total Coliform Rule |
| May 23, 1995 | Jun 23, 1995 | Nitrate | MCL | Yes | No | 48.4 MG/L | 10 mg/L | 45 | Resolved | Jun 23, 1995 | Nitrate Rule |
| May 23, 1995 | Jun 23, 1995 | Nitrate | MCL | Yes | No | 48.4 MG/L | 10 mg/L | 45 | Resolved | Jun 23, 1995 | Nitrate Rule |
| May 23, 1995 | Jun 23, 1995 | Nitrate | MCL | Yes | No | 48.4 MG/L | 10 mg/L | 45 | Resolved | Jun 23, 1995 | Nitrate Rule |
| Jan 1, 1993 | Jan 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 1993 | Total Coliform Rule |
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.