SLO CWWD NO. 23 - SANTA MARGARITA
California — Community Water System — PWSID: CA4010024
System Information
| PWSID | CA4010024 |
| System Name | SLO CWWD NO. 23 - SANTA MARGARITA |
| 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 | Mar 22, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | SAN LUIS OBISPO |
| ZIP Code | 93408 |
| Address | County Government Center Room 206 |
| Organization | ZENKER, FAITH |
| Phone | 805-781-1576 |
Population & Service
| Population Served | 1,291 |
| Service Connections | 506 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 2016 | Aug 31, 2016 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Aug 31, 2016 | Revised Total Coliform Rule |
| Aug 1, 2016 | Aug 31, 2016 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Aug 31, 2016 | Revised 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.