ROSA MORADA MUTUAL WATER COMPANY
California - Community Water System - PWSID: CA3500549
System Information
| PWSID | CA3500549 |
| System Name | ROSA MORADA MUTUAL WATER COMPANY |
| 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 | Jan 5, 1981 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | HOLLISTER |
| ZIP Code | 95023 |
| Address | 591 Dooling Rd. |
| Organization | SLONAKER, LARRY |
| Phone | 831-245-6250 |
Population & Service
| Population Served | 138 |
| Service Connections | 21 |
Drinking Water Violations (41)
This water system has 41 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, 2014 | Dec 31, 2014 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2014 | - | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2014 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Sep 6, 2013 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Sep 6, 2013 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Aug 1, 2005 | Aug 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2005 | - | |
| Aug 1, 2005 | Aug 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2005 | - | |
| Jul 1, 2003 | - | Other | No | No | - | - | - | Resolved | Dec 9, 2003 | - | |
| Jul 1, 2003 | - | Other | No | No | - | - | - | Resolved | Dec 9, 2003 | - | |
| Jul 1, 2003 | - | Other | No | No | - | - | - | Resolved | Dec 9, 2003 | - | |
| Dec 1, 1998 | Dec 31, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1998 | - | |
| Dec 1, 1998 | Dec 31, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1998 | - | |
| Dec 1, 1998 | Dec 31, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1998 | - | |
| Dec 1, 1998 | Dec 31, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1998 | - | |
| Nov 1, 1998 | Nov 30, 1998 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1998 | - | |
| Nov 1, 1998 | Nov 30, 1998 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1998 | - | |
| Nov 1, 1998 | Nov 30, 1998 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1998 | - | |
| Nov 1, 1998 | Nov 30, 1998 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1998 | - | |
| Dec 1, 1997 | Dec 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1997 | - | |
| Dec 1, 1997 | Dec 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1997 | - | |
| Dec 1, 1997 | Dec 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1997 | - | |
| Dec 1, 1997 | Dec 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1997 | - | |
| Nov 1, 1997 | Nov 30, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1997 | - | |
| Nov 1, 1997 | Nov 30, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1997 | - | |
| Nov 1, 1997 | Nov 30, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1997 | - | |
| Nov 1, 1997 | Nov 30, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1997 | - | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 28, 1994 | - | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 28, 1994 | - | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 28, 1994 | - | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 28, 1994 | - | |
| Jul 1, 1993 | Mar 1, 2000 | MR | No | No | - | TT | - | Resolved | Mar 1, 2000 | - | |
| Nov 1, 1982 | Nov 30, 1982 | Other | No | No | - | - | - | Archived | Nov 30, 1982 | - | |
| 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.