Sammamish, Washington — Property Hazard, Flood Zone, Soil, Water & Market Guide
What Are the Major Property, Flood, Soil & Environmental Risks in Sammamish, WA?
Public U.S. EPA records track 141 regulated facilities in Sammamish, Washington (King County), including 3 High-Risk sites (2.1%) and 16 active violators. In addition to industrial waste, Sammamish properties are screened for Tap Water & Watershed Permits (128 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).
Sammamish, WA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Sammamish, WA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)ZIP Codes in Sammamish, WA
Highest-Scored EPA Regulated Facilities in Sammamish, WA
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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • SAMMAMISH, WA (ZIP 98075 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SAMMAMISH, WA (ZIP 98074 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SAMMAMISH, WA (ZIP 98074 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • SAMMAMISH, WA (ZIP 98074 Sector) | HIGH (64/100) | Significant Violation (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • SAMMAMISH, WA (ZIP 98075 Sector) | HIGH (64/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • SAMMAMISH, WA (ZIP 98074 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SAMMAMISH, WA (ZIP 98074 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SAMMAMISH, WA (ZIP 98074 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| SAMMAMISH PLATEAU WATER AND SEWER DIST FREE PREVIEW (LOW RISK) | 1510 228TH AVE SE, SAMMAMISH, WA 98075 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| AUGENSTEIN SHORT PLAT FREE PREVIEW (LOW RISK) | 723 212TH AVE SE, SAMMAMISH, WA 98074 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| SHERWIN WILLIAMS STORE 708189 FREE PREVIEW (LOW RISK) | 3000 ISSAQUAH PINE LAKE RD SE 1A, SAMMAMISH, WA 98075 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| SIMPSON HOUSING LIMITED PARTNERSHIP FREE PREVIEW (LOW RISK) | 4301 ISSAQUAH PINE LAKE RD, SAMMAMISH, WA 98075 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Sammamish, Washington Environmental Risk & Radon
How many EPA-regulated facilities are in Sammamish, WA?
U.S. EPA records track 141 regulated facilities in Sammamish, Washington, including 3 high-risk sites (2.1%), 16 active violators (11.3%), and 15 RCRA hazardous waste handlers (10.6%).
Which ZIP codes in Sammamish, WA have the most EPA-tracked sites?
Within Sammamish, regulated facilities are primarily concentrated across ZIP 98074 (71 sites), ZIP 98075 (66 sites), ZIP 98097 (2 sites).
How can I check a specific house or commercial property in Sammamish, WA?
Enter the exact street address in Sammamish 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 Sammamish, WA and how many EPA water permits exist?
In Sammamish, WA, federal registries track 2 Safe Drinking Water (SDWIS) facilities, 126 Clean Water Act NPDES permits, and 13 impaired water body dischargers.
What is the soil foundation risk and FEMA flood disaster history in Sammamish, WA?
USDA regional soil screening for Sammamish indicates a MODERATE shrink-swell foundation signal, and King County has recorded 4 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.