Preliminary Assessment/Site Inspection Report. Lovell Field Air National GuardStation, 241st Electronic Installation Squadron Tennessee Air National Guard, Chattanooga, Tennessee

摘要

This report presents the results of the Site Inspection conducted October 1994 byAEPCO, Inc. at the Lovell Field Air National Guard Station, located at Chattanooga Municipal Airport, Hamilton County in Southeastern Tennessee. The preliminary assessment and site inspection (PA/SI) is a mechanism for confirming the presence or absence of contamination in the environment through a field sampling program as part of the Installation Restoration Program. The Station has actively operated since 1959 to support air communication services. Operations have involved the use and disposal of hazardous materials and wastes. One area of concern (hereafter referred to as 'AOC A'), an area adjacent to and Northwest of Building 100, was identified at the Station. Three piezometer monitoring wells were drilled and installed, then sampled for Volatile Organic Hydrocarbons, metals, and total petroleum hydrocarbons following soil detections. All laboratory analytical results were below regulatory limits, except for one groundwater detection of lead at 22.1 micrograms per liter, which is slightly above the Safe Drinking Water Act Maximum Contaminant Level of 15. However, since this is not a potable well, lead is not a groundwater contaminant of concern for this Site Inspection. Based on these results, there are no contaminants at AOC A that pose a risk to potential receptors. Accordingly, no farther action is required at AOC A under the Air National Guard's Installation Restoration Program. This conclusion was confirmed by the State of Tennessee's Department of Environmental Conservation, who agreed with site closure in June 1996.