ZIP 99685 (Unalaska, AK) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 99685 in Unalaska, Alaska (Aleutians West County) has 33 EPA-tracked facilities, including 1 High-Risk sites (3.0%), 7 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 99685 are screened across 24 historical Aleutians West County FEMA disasters, USDA Soil Foundation Shrink-Swell (LOW signal), Tap Water & Watershed Permits (27), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
ZIP 99685 (Unalaska, AK) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 99685 (Unalaska, AK) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 02, 2026)ZIP 99685 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 1 High-Risk and 7 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 99685 (Unalaska, AK)
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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • UNALASKA, AK (ZIP 99685 Sector) | HIGH (71/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • UNALASKA, AK (ZIP 99685 Sector) | MODERATE (48/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • UNALASKA, AK (ZIP 99685 Sector) | MODERATE (47/100) | Violation Identified (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • UNALASKA, AK (ZIP 99685 Sector) | MODERATE (44/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • UNALASKA, AK (ZIP 99685 Sector) | MODERATE (37/100) | Violation Identified (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • UNALASKA, AK (ZIP 99685 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • UNALASKA, AK (ZIP 99685 Sector) | MODERATE (33/100) | Violation Identified (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • UNALASKA, AK (ZIP 99685 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| UNALASKA VALLEY POWER MODULE FREE PREVIEW (LOW RISK) | 1035 E BROADWAY AVE, UNALASKA, AK 99685 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| ALYESKA SEAFOODS, INC. FREE PREVIEW (LOW RISK) | 551 W. BROADWAY, UNALASKA, AK 99685 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| GUARDIAN FLIGHT, INC.-UNALASKA FREE PREVIEW (LOW RISK) | 222 BALLYHOO ROAD, UNALASKA, AK 99685 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| DUTCH HARBOR, SATELLITE YARD #2 FREE PREVIEW (LOW RISK) | 1246 AIRPORT BEACH RD, UNALASKA, AK 99685 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 99685 (Unalaska, AK) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 02, 2026)How many EPA-tracked environmental sites are in ZIP code 99685 (Unalaska, AK)?
ZIP code 99685 (Unalaska, AK) contains 33 EPA-tracked facilities, of which 1 (3.0%) are classified in the High-Risk tier, 7 (21.2%) have active compliance violations, and 10 (30.3%) handle RCRA hazardous waste.
How does ZIP 99685 compare to Aleutians West County and Alaska averages?
In ZIP 99685, 3.0% of regulated sites are rated High Risk, compared to 3.9% across Aleutians West County and 2.0% statewide in Alaska.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 99685?
Geologic screening places ZIP 99685 in EPA Zone 3 — Low Potential (< 2.0 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 99685 (Unalaska, AK) in a FEMA flood zone and what is the flood disaster history?
Aleutians West County has recorded 24 historical FEMA federal disaster declarations (12 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 99685 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 99685 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 99685 indicates a LOW shrink-swell risk signal. Within ZIP 99685, federal registries track 2 SDWIS drinking water facilities, 25 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.