RIALTO, CITY OF
California — Community Water System — PWSID: CA3610038
System Information
| PWSID | CA3610038 |
| System Name | RIALTO, CITY OF |
| 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 | RIALTO |
| ZIP Code | 92376 |
| Address | 150 S. Palm Avenue |
| Organization | SEBBAG, TOYASHA |
| Phone | 909-820-2525 |
Population & Service
| Population Served | 54,453 |
| Service Connections | 11,996 |
Drinking Water Violations (5)
This water system has 5 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, 2013 | Dec 31, 2013 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | Nitrate Rule |
| Jan 1, 2013 | Dec 31, 2013 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | Nitrate Rule |
| Aug 1, 1993 | Aug 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 1993 | Total Coliform Rule |
| Aug 1, 1993 | Aug 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 1993 | Total Coliform Rule |
| Jul 1, 1993 | Jul 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 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.