Accession Number : ADA319180

Title :   Final Focused Feasibility Study for Site 5 Soils, 162nd Fighter Group, Arizona Air National Guard, Tucson International Airport Superfund Site, Tucson, Arizona.

Descriptive Note : Final rept.

Corporate Author : ERM-WEST INC SCOTTSDALE AZ

PDF Url : ADA319180

Report Date : NOV 1995

Pagination or Media Count : 109

Abstract : ERM-West, Inc., (ERM) has prepared this Focused Feasibility Study (FFS) Report for Site 5 soils at the Arizona Air National Guard (AANG) Base in Tucson, Arizona. The study is part of the Installation Restoration Program of the Air National Guard. The FFS was prepared to address remedial action alternatives for VOC contaminated soil at the AANG Base. Previous studies at Site 5 indicate that concentrations of some volatile organic compounds (VOCs), including trichloroethylene (TCE), exist in soil underlying the site. The concentrations of these compounds were well below the United States Environmental Protection Agency's (EPA's) and Arizona Department of Environmental Quality's action levels in soils. Consequently no carcinogenic or noncarcinogenic health risks are expected based on direct exposure to Site 5 soils (i.e., exposure to surface soils). However, transport of VOCs from subsurface soils to ground water presents a potential source of health risk. Analysis of potential transport of VOCs in subsurface soils suggests that the mass of these contaminants in Site 5 soils is sufficient to produce measurable concentrations in the upper subunit ground water. Therefore, TCE can potentially migrate to ground water at concentrations exceeding the EPA ground water cleanup goal of 5 micrograms per liter. Based on the potential risk to ground water, a preliminary cleanup goal of 200 micrograms per liter was established for TCE in soil vapor. This cleanup goal was established to protect the upper subunit ground water quality. The goal was based on analytical vadose zone transport modeling presented in this FFS.

Descriptors :   *CHEMICAL CONTAMINATION, *SOIL POLLUTION, *INSTALLATION RESTORATION, NATIONAL GUARD, COST ESTIMATES, ENVIRONMENTAL IMPACT, ACTIVATED CARBON, GROUND WATER, WATER POLLUTION, FEASIBILITY STUDIES, OXIDATION, VOLATILITY, ARIZONA, AIR FORCE FACILITIES, ENVIRONMENTAL MANAGEMENT, SITE INVESTIGATIONS, WATER QUALITY, SOIL TESTS, CONCENTRATION(CHEMISTRY), TRICHLOROETHYLENE, SOIL SURVEYS.

Subject Categories : Solid Wastes Pollution and Control
      Water Pollution and Control
      Logistics, Military Facilities and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE