ZIP 99777 (Tanana, AK) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 99777 in Tanana, Alaska (Yukon-Koyukuk (Ca) County) has 13 EPA-tracked facilities, including 2 High-Risk sites (15.4%), 2 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 99777 are screened across 4 historical Yukon-Koyukuk (Ca) County FEMA disasters, USDA Soil Foundation Shrink-Swell (LOW signal), Tap Water & Watershed Permits (9), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
ZIP 99777 (Tanana, 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 99777 (Tanana, AK) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 99777 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 2 High-Risk and 2 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 99777 (Tanana, 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 • TANANA, AK (ZIP 99777 Sector) | HIGH (64/100) | Significant Violation (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • TANANA, AK (ZIP 99777 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| USAF LRRS BEAR CREEK FREE PREVIEW (LOW RISK) | TANANA-ALLAKAKET WINTER TRAIL, TANANA, AK 99777 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| USDHHS PHS HOSP TANANA HEALTH AK NATIVE FREE PREVIEW (LOW RISK) | CTR OF VLG, TANANA, AK 99777 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| USDOT FAA TANANA FREE PREVIEW (LOW RISK) | TAL TANANA ARPRT NAV AIDS, TANANA, AK 99777 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| MP MINING GOLDEN CREEK MINE SITE FREE PREVIEW (LOW RISK) | MELOZITNA B-1; TANANA B-6, TANANA, AK 99777 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CIRCLE HOT SPRINGS, AK (ZIP 99777 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • TANANA, AK (ZIP 99777 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • TANANA, AK (ZIP 99777 Sector) | LOW (11/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • TANANA, AK (ZIP 99777 Sector) | LOW (11/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • TANANA, AK (ZIP 99777 Sector) | LOW (9/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • TANANA, AK (ZIP 99777 Sector) | LOW (8/100) | Inactive (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — ZIP 99777 (Tanana, AK) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 99777 (Tanana, AK)?
ZIP code 99777 (Tanana, AK) contains 13 EPA-tracked facilities, of which 2 (15.4%) are classified in the High-Risk tier, 2 (15.4%) have active compliance violations, and 3 (23.1%) handle RCRA hazardous waste.
How does ZIP 99777 compare to Yukon-Koyukuk (Ca) County and Alaska averages?
In ZIP 99777, 15.4% of regulated sites are rated High Risk, compared to 1.3% across Yukon-Koyukuk (Ca) County and 2.0% statewide in Alaska.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 99777?
Geologic screening places ZIP 99777 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 99777 (Tanana, AK) in a FEMA flood zone and what is the flood disaster history?
Yukon-Koyukuk (Ca) County has recorded 4 historical FEMA federal disaster declarations (2 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 99777 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 99777 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 99777 indicates a LOW shrink-swell risk signal. Within ZIP 99777, federal registries track 2 SDWIS drinking water facilities, 7 Clean Water NPDES permits, and 0 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.