Petersburg County, Alaska — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Petersburg County, AK?
In Petersburg County, Alaska, public U.S. EPA records track 3 regulated facilities (#78 of 78 in Alaska), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 0 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (0 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
Petersburg County, AK 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Petersburg County, AK Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Petersburg County
ZIP Codes in Petersburg County
Top EPA Regulated Facilities in Petersburg County, 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 Tier & Score | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| USDOT CG CUTTER CAPE HATTERAS WPB95305 FREE PREVIEW (LOW RISK) | CHEVRON PIER, PETERSBURG, AK 99833 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| USDA USFS R10 PETERSBURG FREE PREVIEW (LOW RISK) | 25 TWELVE ST, PETERSBURG, AK 99833 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| FOX RIVER TIMBER CORP-TONKA MTN FREE PREVIEW (LOW RISK) | 8 MI S OF PETERSBURG ACROSS, KUPREANOF, AK 99833 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Petersburg County, Alaska Environmental Due Diligence
How many EPA-regulated environmental sites are in Petersburg Borough County, Alaska?
Public U.S. EPA records track 3 regulated facilities in Petersburg Borough County, Alaska (ranking #78 of 78 jurisdictions in AK). 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 Petersburg Borough County have the highest regulated facility density?
Within Petersburg Borough County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including Kupreanof (1 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Petersburg Borough County?
Across Petersburg Borough County, 3 facilities (100.0% 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 Petersburg Borough County, AK?
Geologic indoor air screening places Petersburg Borough 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 Petersburg Borough County, AK?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 0 Clean Water Act NPDES permits, and 0 impaired water dischargers in Petersburg Borough County, alongside 1 historical FEMA federal disaster declarations (0 flood/storm events).
Does Petersburg County, AK have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Petersburg County indicates a LOW shrink-swell risk signal and steel pipe corrosivity rated High. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.