ZIP 98101 (Seattle, WA) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 98101 in Seattle, Washington (King County) has 131 EPA-tracked facilities, including 0 High-Risk sites (0.0%), 4 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 98101 are screened across 4 historical King County FEMA disasters, USDA Soil Foundation Shrink-Swell (MODERATE signal), Tap Water & Watershed Permits (12), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
ZIP 98101 (Seattle, WA) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 98101 (Seattle, WA) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 98101 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 0 High-Risk and 4 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 98101 (Seattle, 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 Score (0–100) | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • SEATTLE, WA (ZIP 98101 Sector) | MODERATE (44/100) | Violation Identified (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ADDY, WA (ZIP 98101 Sector) | MODERATE (39/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SEATTLE, WA (ZIP 98101 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • SEATTLE, WA (ZIP 98101 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • SEATTLE, WA (ZIP 98101 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • SEATTLE, WA (ZIP 98101 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SEATTLE, WA (ZIP 98101 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SEATTLE, WA (ZIP 98101 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| UNICO PROPERTIES INC 1325 4TH FREE PREVIEW (LOW RISK) | 1325 4TH AVE, SEATTLE, WA 98101 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| SEATTLE CHILDRENS RESEARCH FREE PREVIEW (LOW RISK) | 1916 BOREN AVE, SEATTLE, WA 98101 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| TURNER CONSTRUCTION CO FREE PREVIEW (LOW RISK) | 600 UNIVERSITY, SEATTLE, WA 98101 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| HARBOR DEVELOPMENT CO FREE PREVIEW (LOW RISK) | 1301 1ST AVE, SEATTLE, WA 98101 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 98101 (Seattle, WA) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 98101 (Seattle, WA)?
ZIP code 98101 (Seattle, WA) contains 131 EPA-tracked facilities, of which 0 (0.0%) are classified in the High-Risk tier, 4 (3.1%) have active compliance violations, and 114 (87.0%) handle RCRA hazardous waste.
How does ZIP 98101 compare to King County and Washington averages?
In ZIP 98101, 0.0% of regulated sites are rated High Risk, compared to 3.2% across King County and 5.2% statewide in Washington.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 98101?
Geologic screening places ZIP 98101 in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Property buyers should screen a 0.25-mile immediate buffer for vapor-intrusion sources and a 1.0-mile radius for CERCLA/RCRA sites.
Is ZIP 98101 (Seattle, WA) in a FEMA flood zone and what is the flood disaster history?
King County has recorded 4 historical FEMA federal disaster declarations (3 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 98101 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 98101 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 98101 indicates a MODERATE shrink-swell risk signal. Within ZIP 98101, federal registries track 0 SDWIS drinking water facilities, 12 Clean Water NPDES permits, and 10 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.