SANTA MARGARITA WATER DISTRICT
California — Community Water System — PWSID: CA3010101
System Information
| PWSID | CA3010101 |
| System Name | SANTA MARGARITA WATER DISTRICT |
| 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 | RANCHO SANTA MARGARITA |
| ZIP Code | 92688 |
| Address | 26111 Antonio Pkwy. |
| Organization | PETERSON, DANIEL |
| Phone | 949-459-6594 |
Population & Service
| Population Served | 168,289 |
| Service Connections | 56,265 |
Drinking Water Violations (2)
This water system has 2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| May 1, 2009 | May 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2009 | Total Coliform Rule |
| May 1, 2009 | May 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2009 | 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.