NICASIO RANCH LLC
California - Transient Non-Community - PWSID: CA2100553
System Information
| PWSID | CA2100553 |
| System Name | NICASIO RANCH LLC |
| System Type | Transient Non-Community |
| 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 | MILL VALLEY |
| ZIP Code | 94942 |
| Address | P.O. Box 810 |
| Organization | BROWN, JANE |
| Phone | 415-264-6718 |
Population & Service
| Population Served | 104 |
| Service Connections | 4 |
Drinking Water Violations (7)
This water system has 7 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 1, 2013 | Nov 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2013 | - | |
| Nov 1, 2013 | Nov 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2013 | - | |
| Feb 1, 2000 | Feb 29, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 29, 2000 | - | |
| Feb 1, 2000 | Feb 29, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 29, 2000 | - | |
| Aug 1, 1984 | Aug 31, 1984 | Other | No | No | - | - | - | Archived | Aug 31, 1984 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | 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.