MATANZAS CREEK WINERY
California - Non-Transient Non-Community - PWSID: CA4901248
System Information
| PWSID | CA4901248 |
| System Name | MATANZAS CREEK WINERY |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Sep 10, 1999 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | SONOMA |
| ZIP Code | 95476 |
| Address | 27000 Ramal Road |
| Organization | JAMISON, SAM |
| Phone | 707-251-5083 |
Population & Service
| Population Served | 139 |
| Service Connections | 7 |
Drinking Water Violations (20)
This water system has 20 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, 2015 | Apr 30, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2015 | - | |
| Apr 1, 2015 | Apr 30, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2015 | - | |
| Nov 1, 2008 | Nov 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2008 | - | |
| Nov 1, 2008 | Nov 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2008 | - | |
| Oct 1, 2008 | Oct 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2008 | - | |
| Oct 1, 2008 | Oct 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2008 | - | |
| Jun 1, 2008 | Jun 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2008 | - | |
| Jun 1, 2008 | Jun 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2008 | - | |
| Apr 1, 2008 | Apr 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2008 | - | |
| Apr 1, 2008 | Apr 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2008 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jul 1, 2003 | Jul 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2003 | - | |
| Jul 1, 2003 | Jul 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2003 | - | |
| Jun 1, 2003 | Jun 30, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2003 | - | |
| Jun 1, 2003 | Jun 30, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2003 | - | |
| Dec 1, 2001 | Dec 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2001 | - | |
| Dec 1, 2001 | Dec 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2001 | - | |
| Nov 1, 1999 | Nov 30, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1999 | - | |
| Nov 1, 1999 | Nov 30, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1999 | - |
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.