Keahuolu County, Hawaii — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Keahuolu County, Hawaii, public U.S. EPA records track 1 regulated facilities (#11 of 11 in Hawaii), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 1 Clean Water NPDES permits, 19 FEMA Federal Disaster Declarations (8 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
Keahuolu County, HI 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Keahuolu County, HI Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Keahuolu County
ZIP Codes in Keahuolu County
Top EPA Regulated Facilities in Keahuolu County, 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 Tier & Score | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| KAMAKANA VILLAGES PHASE 1A, SITE DEVELOPMENT FREE PREVIEW (LOW RISK) | KAILUA-KONA, KAILUA, HI 96740 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Keahuolu County, Hawaii Environmental Due Diligence
How many EPA-regulated environmental sites are in Keahuolu County, Hawaii?
Public U.S. EPA records track 1 regulated facilities in Keahuolu County, Hawaii (ranking #11 of 11 jurisdictions in HI). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 0 (0.0%) have active non-compliance quarters.
Which ZIP codes and cities in Keahuolu County have the highest regulated facility density?
Within Keahuolu County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including Keahuolu.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Keahuolu County?
Across Keahuolu County, 0 facilities (0.0% of regulated sites) are registered Resource Conservation and Recovery Act (RCRA) hazardous waste generators or handlers, and 0 industrial sites report toxic chemical releases to the EPA Toxics Release Inventory (TRI).
What is the EPA Radon Zone classification for Keahuolu County, HI?
Geologic indoor air screening places Keahuolu County in EPA Zone 3 — Low Potential (< 2.0 pCi/L). Counties in EPA Radon Zone 3 have a predicted average indoor radon level below 2.0 pCi/L, indicating lower regional geologic radon risk.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Keahuolu County, HI?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 1 Clean Water Act NPDES permits, and 1 impaired water dischargers in Keahuolu County, alongside 19 historical FEMA federal disaster declarations (8 flood/storm events).
Does Keahuolu County, HI have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Keahuolu County indicates a LOW shrink-swell risk signal and steel pipe corrosivity rated Moderate. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.