Mammoth Lakes, California — Property Hazard, Flood Zone, Soil, Water & Market Guide
What Are the Major Property, Flood, Soil & Environmental Risks in Mammoth Lakes, CA?
Public U.S. EPA records track 126 regulated facilities in Mammoth Lakes, California (Mono County), including 1 High-Risk sites (0.8%) and 2 active violators. In addition to industrial waste, Mammoth Lakes properties are screened for Tap Water & Watershed Permits (35 systems), USDA Soil Foundation Shrink-Swell (LOW signal), 3 County FEMA Disaster Declarations, and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Mammoth Lakes, CA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Mammoth Lakes, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)ZIP Codes in Mammoth Lakes, CA
Highest-Scored EPA Regulated Facilities in Mammoth Lakes, 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 |
|---|---|---|---|---|
| 🔒 Locked Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • MAMMOTH LAKES, CA (ZIP 93546 Sector) | MODERATE (43/100) | Violation Identified (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • MAMMOTH LAKES, CA (ZIP 93546 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • MAMMOTH LAKES, CA (ZIP 93546 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • MAMMOTH LAKES, CA (ZIP 93546 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • MAMMOTH LAKES, CA (ZIP 93546 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • MAMMOTH LAKES, CA (ZIP 93546 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • MAMMOTH LAKES, CA (ZIP 93546 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • MAMMOTH LAKES, CA (ZIP 93546 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 7/11 MATERIALS INC FREE PREVIEW (LOW RISK) | 198 COMMERCE DR, MAMMOTH LAKES, CA 93546 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| MAMMOTH HOSPITAL FREE PREVIEW (LOW RISK) | 85 SIERRA PARK ROAD, MAMMOTH LAKES, CA 93546 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| NEW CINGULAR WIRELESS PCS LLC FREE PREVIEW (LOW RISK) | 396 HILTON CREEK HOSTEL RD, MAMMOTH LAKES, CA 93546 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| AMP UNITED FREE PREVIEW (LOW RISK) | 23 JUNIPER RD, MAMMOTH LAKES, CA 93546 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Mammoth Lakes, California Environmental Risk & Radon
How many EPA-regulated facilities are in Mammoth Lakes, CA?
U.S. EPA records track 126 regulated facilities in Mammoth Lakes, California, including 1 high-risk sites (0.8%), 2 active violators (1.6%), and 94 RCRA hazardous waste handlers (74.6%).
Which ZIP codes in Mammoth Lakes, CA have the most EPA-tracked sites?
Within Mammoth Lakes, regulated facilities are primarily concentrated across ZIP 93546 (135 sites).
How can I check a specific house or commercial property in Mammoth Lakes, CA?
Enter the exact street address in Mammoth Lakes 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 Mammoth Lakes, CA and how many EPA water permits exist?
In Mammoth Lakes, CA, federal registries track 1 Safe Drinking Water (SDWIS) facilities, 34 Clean Water Act NPDES permits, and 5 impaired water body dischargers.
What is the soil foundation risk and FEMA flood disaster history in Mammoth Lakes, CA?
USDA regional soil screening for Mammoth Lakes indicates a LOW shrink-swell foundation signal, and Mono 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.