RANCHO CALIFORNIA WATER DISTRICT
California — Community Water System — PWSID: CA3310038
System Information
| PWSID | CA3310038 |
| System Name | RANCHO CALIFORNIA 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 | TEMECULA |
| ZIP Code | 92590-4800 |
| Address | 42135 WINCHESTER ROAD |
| Organization | OTTOLINI, RICH |
| Phone | 951-296-6954 |
Population & Service
| Population Served | 146,147 |
| Service Connections | 44,287 |
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, 1997 | Jul 31, 2000 | Fluoride | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jul 31, 2000 | Inorganic Chemicals |
| Aug 1, 1997 | Jul 31, 2000 | Fluoride | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jul 31, 2000 | Inorganic Chemicals |
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.