PALOMAR OBSERVATORY
California — Community Water System — PWSID: CA3702236
System Information
| PWSID | CA3702236 |
| System Name | PALOMAR OBSERVATORY |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | PALOMAR MOUNTAIN |
| ZIP Code | 92060 |
| Address | 35899 CANFIELD RD |
| Organization | RODERICK, DREW |
| Phone | 760-742-2100 |
Population & Service
| Population Served | 4,416 |
| Service Connections | 26 |
Drinking Water Violations (21)
This water system has 21 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 1, 2022 | Nov 30, 2022 | MON | No | No | — | — | — | Resolved | Nov 30, 2022 | — | |
| Nov 1, 2022 | Nov 30, 2022 | MON | No | No | — | — | — | Resolved | Nov 30, 2022 | — | |
| Oct 1, 2022 | Oct 31, 2022 | MON | No | Yes | — | — | — | Resolved | Oct 31, 2022 | — | |
| Oct 1, 2022 | Oct 31, 2022 | MON | No | Yes | — | — | — | Resolved | Oct 31, 2022 | — | |
| Sep 1, 2013 | Sep 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2013 | — | |
| Sep 1, 2013 | Sep 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2013 | — | |
| Feb 1, 2008 | Feb 29, 2008 | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 29, 2008 | — | |
| Feb 1, 2008 | Feb 29, 2008 | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 29, 2008 | — | |
| Apr 1, 2005 | Apr 30, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2005 | — | |
| Apr 1, 2005 | Apr 30, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2005 | — | |
| Jul 1, 1993 | — | MR | No | No | — | TT | — | Resolved | Sep 30, 2005 | — | |
| Sep 1, 1984 | Sep 30, 1984 | Other | No | No | — | — | — | Archived | Sep 30, 1984 | — | |
| Jul 1, 1984 | Jul 31, 1984 | Other | No | No | — | — | — | Archived | Jul 31, 1984 | — | |
| Jun 1, 1984 | Jun 30, 1984 | Other | No | No | — | — | — | Archived | Jun 30, 1984 | — | |
| Apr 1, 1984 | Apr 30, 1984 | Other | No | No | — | — | — | Archived | Apr 30, 1984 | — | |
| Dec 1, 1983 | Dec 31, 1983 | Other | No | No | — | — | — | Archived | Dec 31, 1983 | — | |
| 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 | — | |
| Oct 1, 1981 | Sep 30, 1982 | MR | No | Yes | — | 15 pCi/L | — | Archived | Sep 30, 1982 | — | |
| Oct 30, 1980 | Oct 29, 1981 | MR | No | Yes | — | 15 pCi/L | — | Archived | Oct 29, 1981 | — |
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.