OCOTILLO MUTUAL WATER CO
California - Community Water System - PWSID: CA1300513
System Information
| PWSID | CA1300513 |
| System Name | OCOTILLO MUTUAL WATER CO |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | OCOTILLO |
| ZIP Code | 92259 |
| Address | PO BOX 155 |
| Organization | _CA1300513, OCOTILLO MUTUAL WATE |
| Phone | 760-545-1177 |
Population & Service
| Population Served | 150 |
| Service Connections | 113 |
Drinking Water Violations (14)
This water system has 14 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Addressed | - | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Addressed | - | - | |
| Jan 1, 2019 | Dec 31, 2019 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2019 | Dec 31, 2019 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2010 | Aug 23, 2012 | MR | No | No | - | 0.010 mg/L | - | Resolved | Aug 23, 2012 | - | |
| Jan 1, 2010 | Aug 23, 2012 | MR | No | No | - | 0.005 mg/L | - | Resolved | Aug 23, 2012 | - | |
| Jan 1, 2010 | Aug 23, 2012 | MR | No | No | - | 0.010 mg/L | - | Resolved | Aug 23, 2012 | - | |
| Jan 1, 2010 | Aug 23, 2012 | MR | No | No | - | 0.005 mg/L | - | Resolved | Aug 23, 2012 | - | |
| Apr 1, 1999 | Apr 30, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 1999 | - | |
| Oct 1, 1998 | Oct 31, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1998 | - | |
| Oct 1, 1998 | Oct 31, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1998 | - | |
| Jul 1, 1993 | Mar 1, 2000 | MR | No | No | - | TT | - | Resolved | Mar 1, 2000 | - | |
| 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.