ZIP 99690 (Nightmute, AK) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 99690 in Nightmute, Alaska (Bethel (Ca) County) has 6 EPA-tracked facilities, including 2 High-Risk sites (33.3%), 2 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 99690 are screened across 24 historical Bethel (Ca) County FEMA disasters, USDA Soil Foundation Shrink-Swell (LOW signal), Tap Water & Watershed Permits (5), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
ZIP 99690 (Nightmute, 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 99690 (Nightmute, AK) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 99690 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 99690 (Nightmute, 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 • NIGHTMUTE, AK (ZIP 99690 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • NIGHTMUTE, AK (ZIP 99690 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| NIGHTMUTE AIRPORT IMPROVEMENTS FREE PREVIEW (LOW RISK) | NIGHTMUTE AIRPORT, NIGHTMUTE, AK 99690 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| AVEC NIGHTMUTE POWER PLANT FREE PREVIEW (LOW RISK) | CHANGTAK ST, NIGHTMUTE, AK 99690 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| NIGHTMUTE WATER SYSTEM FREE PREVIEW (LOW RISK) | KUURARALRIA ST, NIGHTMUTE, AK 99690 | LOW (8/100) | Inactive (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 99690 (Nightmute, 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 99690 (Nightmute, AK)?
ZIP code 99690 (Nightmute, AK) contains 6 EPA-tracked facilities, of which 2 (33.3%) are classified in the High-Risk tier, 2 (33.3%) have active compliance violations, and 0 (0.0%) handle RCRA hazardous waste.
How does ZIP 99690 compare to Bethel (Ca) County and Alaska averages?
In ZIP 99690, 33.3% of regulated sites are rated High Risk, compared to 3.4% across Bethel (Ca) County and 2.0% statewide in Alaska.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 99690?
Geologic screening places ZIP 99690 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 99690 (Nightmute, AK) in a FEMA flood zone and what is the flood disaster history?
Bethel (Ca) County has recorded 24 historical FEMA federal disaster declarations (12 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 99690 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 99690 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 99690 indicates a LOW shrink-swell risk signal. Within ZIP 99690, federal registries track 2 SDWIS drinking water facilities, 3 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.