Ft. Huachuca, AZ Fire Site Hazardous Waste Remedial Action

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by James L. Machin, Radian Corp, United States,
Janet Ehresmann, Radian Corp, United States,

Document Type: Proceeding Paper

Part of: Environmental Engineering:

Abstract: The paper discusses an investigation of the site of a major fire at Ft. Huachuca, Arizona. All of the fire debris contained asbestos. The sampling results confirmed that PCB levels of about 100 ppm in soil existed in the area where a transformer fell to the ground. Lead concentrations exceeding the EP toxicity criterion for defining characteristically hazardous waste were found in most of the ash and underlying soil. The vertical extent of contamination was determined to be only in the top one foot of soil. A laboratory study was conducted to determine how to treat the ash/soil in situ to render it nonhazardous. The study showed that the most cost-effective treatment would be to admix CaCO3 in the form of pulverized limestone in a ten percent final weight ratio. Additional aspects of the subject are discussed.

Subject Headings: Waste sites | Occupational safety | Fires | Laboratory tests | Remediation | Hazardous wastes | Soil treatment | Site investigation | Lead (chemical) | Calcium carbonate | Hazardous materials | Arizona | North America | United States

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