Tamalpais Valley, California — Property Hazard, Flood Zone, Soil, Water & Market Guide
What Are the Major Property, Flood, Soil & Environmental Risks in Tamalpais Valley, CA?
Public U.S. EPA records track 1 regulated facilities in Tamalpais Valley, California (Marin County), including 0 High-Risk sites (0.0%) and 0 active violators. In addition to industrial waste, Tamalpais Valley properties are screened for Tap Water & Watershed Permits (0 systems), USDA Soil Foundation Shrink-Swell (LOW signal), 3 County FEMA Disaster Declarations, and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Tamalpais Valley, CA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Tamalpais Valley, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)ZIP Codes in Tamalpais Valley, CA
Highest-Scored EPA Regulated Facilities in Tamalpais Valley, CA
100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).
| Facility Name / Hazard Type | Sector Location (Street Redacted) | Risk Tier & Score | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| CALTRANS, DISTRICT 4 EA 04-1W004 FREE PREVIEW (LOW RISK) | ROUTE 1, POSTMILE 1, TAMALPAIS VALLEY, CA 94941 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Tamalpais Valley, California Environmental Risk & Radon
How many EPA-regulated facilities are in Tamalpais Valley, CA?
U.S. EPA records track 1 regulated facilities in Tamalpais Valley, California, including 0 high-risk sites (0.0%), 0 active violators (0.0%), and 1 RCRA hazardous waste handlers (100.0%).
Which ZIP codes in Tamalpais Valley, CA have the most EPA-tracked sites?
Within Tamalpais Valley, regulated facilities are primarily concentrated across local postal codes.
How can I check a specific house or commercial property in Tamalpais Valley, CA?
Enter the exact street address in Tamalpais Valley into the FullPropertyReport radius scanner to screen all EPA ECHO, FRS, RCRA, TRI, USDA soil foundation shrink-swell, drinking water (SDWIS), FEMA flood zone, and county radon records within 0.5 to 3.0 miles.
Is tap water safe in Tamalpais Valley, CA and how many EPA water permits exist?
In Tamalpais Valley, CA, federal registries track 0 Safe Drinking Water (SDWIS) facilities, 0 Clean Water Act NPDES permits, and 0 impaired water body dischargers.
What is the soil foundation risk and FEMA flood disaster history in Tamalpais Valley, CA?
USDA regional soil screening for Tamalpais Valley indicates a LOW shrink-swell foundation signal, and Marin County has recorded 3 federal FEMA disaster declarations (3 flood/severe storm declarations). Run an address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.