WESTERN MWD - MURRIETA DIVISION
California — Community Water System — PWSID: CA3310036
System Information
| PWSID | CA3310036 |
| System Name | WESTERN MWD - MURRIETA DIVISION |
| 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 | RIVERSIDE |
| ZIP Code | 92503 |
| Address | 16451 El Sobrante Rd. |
| Organization | RUGGE, PAUL |
| Phone | 951-789-5155 |
Population & Service
| Population Served | 17,453 |
| Service Connections | 2,868 |
Drinking Water Violations (12)
This water system has 12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2006 | Mar 31, 2006 | Nitrate | MCL | Yes | No | 48 MG/L | 10 mg/L | 45 | Resolved | Mar 6, 2006 | Nitrate Rule |
| Jan 1, 2006 | Mar 31, 2006 | Nitrate | MCL | Yes | No | 48 MG/L | 10 mg/L | 45 | Resolved | Mar 6, 2006 | Nitrate Rule |
| Oct 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | No | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Oct 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | No | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jul 1, 2005 | Sep 30, 2005 | Nitrate | MR | No | No | — | 10 mg/L | — | Resolved | Sep 30, 2005 | Nitrate Rule |
| Jul 1, 2005 | Sep 30, 2005 | Nitrate | MR | No | No | — | 10 mg/L | — | Resolved | Sep 30, 2005 | Nitrate Rule |
| Apr 1, 2005 | Jun 30, 2005 | Nitrate | MR | No | No | — | 10 mg/L | — | Resolved | Jun 30, 2005 | Nitrate Rule |
| Apr 1, 2005 | Jun 30, 2005 | Nitrate | MR | No | No | — | 10 mg/L | — | Resolved | Jun 30, 2005 | Nitrate Rule |
| Jan 1, 2004 | Jan 31, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2004 | Total Coliform Rule |
| Jan 1, 2004 | Jan 31, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2004 | Total Coliform Rule |
| Mar 1, 1994 | Mar 31, 1994 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 1994 | Total Coliform Rule |
| Mar 1, 1994 | Mar 31, 1994 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 1994 | 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.