SUBURBAN WATER SYSTEMS-COVINA KNOLLS
California — Community Water System — PWSID: CA1910200
System Information
| PWSID | CA1910200 |
| System Name | SUBURBAN WATER SYSTEMS-COVINA KNOLLS |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | COVINA |
| ZIP Code | 91724 |
| Address | 1325 N. GRAND AVENUE SUITE 100 |
| Organization | DIMAGGIO, PAUL |
| Phone | 626-543-2532 |
Population & Service
| Population Served | 1,437 |
| Service Connections | 495 |
Drinking Water Violations (3)
This water system has 3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 1, 1996 | Mar 31, 1996 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 1996 | Total Coliform Rule |
| Mar 1, 1996 | Mar 31, 1996 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 1996 | Total Coliform Rule |
| Jun 1, 1993 | Nov 30, 1995 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Jul 19, 1993 | Surface Water Treatment 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.