WILD HORSE VALLEY RANCH
California - Transient Non-Community - PWSID: CA2800680
System Information
| PWSID | CA2800680 |
| System Name | WILD HORSE VALLEY RANCH |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Inactive |
| 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 | NAPA |
| ZIP Code | 94558 |
| Address | 3200 MONTICELLO ROAD |
| Organization | HAAS-MARTIN, MISCHELLE |
| Phone | 707-256-1547 |
Population & Service
| Population Served | 100 |
| Service Connections | 6 |
Drinking Water Violations (10)
This water system has 10 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 1, 2022 | - | TT | Yes | No | - | - | - | Archived | Feb 6, 2024 | - | |
| Apr 1, 2021 | Jun 30, 2021 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2021 | - | |
| Apr 1, 2021 | Jun 30, 2021 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2021 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2005 | - | |
| Oct 1, 2003 | Dec 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2003 | - | |
| Oct 1, 2003 | Dec 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2003 | - | |
| Aug 1, 1984 | Aug 31, 1984 | Other | No | No | - | - | - | Archived | Aug 31, 1984 | - | |
| Nov 1, 1982 | Nov 30, 1982 | Other | No | No | - | - | - | Archived | Nov 30, 1982 | - | |
| - | - | - | 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.