Duncan Mills, California — Property Hazard, Flood Zone, Soil, Water & Market Guide
What Are the Major Property, Flood, Soil & Environmental Risks in Duncan Mills, CA?
Public U.S. EPA records track 1 regulated facilities in Duncan Mills, California (Sonoma County), including 0 High-Risk sites (0.0%) and 0 active violators. In addition to industrial waste, Duncan Mills properties are screened for Tap Water & Watershed Permits (1 systems), USDA Soil Foundation Shrink-Swell (MODERATE signal), 4 County FEMA Disaster Declarations, and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Duncan Mills, CA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Duncan Mills, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)ZIP Codes in Duncan Mills, CA
Highest-Scored EPA Regulated Facilities in Duncan Mills, 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 |
|---|---|---|---|---|
| CASINI RANCH CAMPGROUND-TREATMENT PLANT - ALL SOURCES - TREATED FREE PREVIEW (LOW RISK) | P.O. BOX 22, DUNCAN MILLS, CA 95430 | LOW (11/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Duncan Mills, California Environmental Risk & Radon
How many EPA-regulated facilities are in Duncan Mills, CA?
U.S. EPA records track 1 regulated facilities in Duncan Mills, California, including 0 high-risk sites (0.0%), 0 active violators (0.0%), and 0 RCRA hazardous waste handlers (0.0%).
Which ZIP codes in Duncan Mills, CA have the most EPA-tracked sites?
Within Duncan Mills, regulated facilities are primarily concentrated across local postal codes.
How can I check a specific house or commercial property in Duncan Mills, CA?
Enter the exact street address in Duncan Mills 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 Duncan Mills, CA and how many EPA water permits exist?
In Duncan Mills, CA, federal registries track 1 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 Duncan Mills, CA?
USDA regional soil screening for Duncan Mills indicates a MODERATE shrink-swell foundation signal, and Sonoma County has recorded 4 federal FEMA disaster declarations (4 flood/severe storm declarations). Run an address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.