CAL FIRE SONOMA-LAKE-NAPA UNIT HQ
California - Non-Transient Non-Community - PWSID: CA2810302
System Information
| PWSID | CA2810302 |
| System Name | CAL FIRE SONOMA-LAKE-NAPA UNIT HQ |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 6, 1994 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | ST. HELENA |
| ZIP Code | 94574 |
| Address | 1199 Big Tree Road |
| Organization | ISHAM, RYAN |
| Phone | 707-531-9691 |
Population & Service
| Population Served | 65 |
| Service Connections | 7 |
Drinking Water Violations (2)
This water system has 2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 1, 2020 | Mar 31, 2020 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 31, 2020 | - | |
| Mar 1, 2020 | Mar 31, 2020 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 31, 2020 | - |
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.