ZIP 96840 (Honolulu, HI) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 96840 in Honolulu, Hawaii (Honolulu County) has 4 EPA-tracked facilities, including 1 High-Risk sites (25.0%), 1 active violators, and $235,400 in federal penalties. Beyond industrial pollution, properties in ZIP 96840 are screened across 5 historical Honolulu County FEMA disasters, USDA Soil Foundation Shrink-Swell (LOW signal), Tap Water & Watershed Permits (1), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
ZIP 96840 (Honolulu, HI) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 96840 (Honolulu, HI) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 02, 2026)ZIP 96840 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 1 High-Risk and 1 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 96840 (Honolulu, HI)
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 • WAHIAWA, HI (ZIP 96840 Sector) | HIGH (64/100) | Violation Identified (1 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| HAWAIIAN ELECTRIC COMPANY, INC. FREE PREVIEW (LOW RISK) | P.O. BOX 2750, HONOLULU, HI 96840 | LOW (11/100) | No Violation Identified (0 qtrs NC) | $0 |
| EDWARD Y. HIRATA FREE PREVIEW (LOW RISK) | PO BOX 2750, HONOLULU, HI 96840 | LOW (10/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 96840 (Honolulu, HI) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 02, 2026)How many EPA-tracked environmental sites are in ZIP code 96840 (Honolulu, HI)?
ZIP code 96840 (Honolulu, HI) contains 4 EPA-tracked facilities, of which 1 (25.0%) are classified in the High-Risk tier, 1 (25.0%) have active compliance violations, and 0 (0.0%) handle RCRA hazardous waste.
How does ZIP 96840 compare to Honolulu County and Hawaii averages?
In ZIP 96840, 25.0% of regulated sites are rated High Risk, compared to 0.6% across Honolulu County and 1.1% statewide in Hawaii.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 96840?
Geologic screening places ZIP 96840 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 96840 (Honolulu, HI) in a FEMA flood zone and what is the flood disaster history?
Honolulu County has recorded 5 historical FEMA federal disaster declarations (4 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 96840 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 96840 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 96840 indicates a LOW shrink-swell risk signal. Within ZIP 96840, federal registries track 0 SDWIS drinking water facilities, 1 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.