BLOCK 77 WATER COMPANY
California - Community Water System - PWSID: CA3301877
System Information
| PWSID | CA3301877 |
| System Name | BLOCK 77 WATER COMPANY |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Non-Inventory |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Nov 30, 1981 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | NORCO |
| ZIP Code | 92860 |
| Address | 4988 Bluff St. |
| Organization | ROBERTS, MARY |
| Phone | 951-279-7649 |
Population & Service
| Population Served | 59 |
| Service Connections | 18 |
Drinking Water Violations (13)
This water system has 13 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, 2021 | Mar 31, 2021 | MCL | Yes | No | 10.9 UG/L | 0.010 mg/L | 10 | Archived | Mar 31, 2021 | - | |
| Oct 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Feb 25, 2020 | - | |
| Oct 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Feb 25, 2020 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Nov 9, 2004 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Nov 9, 2004 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Nov 9, 2004 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Nov 9, 2004 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Nov 9, 2004 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Nov 9, 2004 | - | |
| Sep 1, 1983 | Sep 30, 1983 | Other | No | No | - | - | - | Archived | Sep 30, 1983 | - | |
| Aug 1, 1983 | Aug 31, 1983 | Other | No | No | - | - | - | Archived | Aug 31, 1983 | - | |
| Jul 1, 1983 | Jul 31, 1983 | Other | No | No | - | - | - | Archived | Jul 31, 1983 | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.