O'CONNOR TRACT CO-OPERATIVE WATER CO.
California — Community Water System — PWSID: CA4110019
System Information
| PWSID | CA4110019 |
| System Name | O'CONNOR TRACT CO-OPERATIVE WATER CO. |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | PALO ALTO |
| ZIP Code | 94302 |
| Address | P.O. BOX 1375 |
| Organization | JONES, DAVID |
| Phone | 650-678-2208 |
Population & Service
| Population Served | 2,789 |
| Service Connections | 359 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2018 | — | TT | Yes | No | — | — | — | Resolved | Aug 15, 2019 | — | |
| Apr 1, 2018 | — | TT | Yes | No | — | — | — | Resolved | Aug 15, 2019 | — | |
| Nov 1, 2015 | Nov 30, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2015 | — | |
| Nov 1, 2015 | Nov 30, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2015 | — | |
| Sep 1, 2004 | Sep 30, 2004 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | — | |
| Sep 1, 2004 | Sep 30, 2004 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | — | |
| May 1, 2000 | May 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2000 | — | |
| May 1, 2000 | May 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2000 | — | |
| May 1, 2000 | May 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2000 | — | |
| May 1, 2000 | May 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2000 | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | 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.