Accession Number : ADA306244
Title : Investigation of the 26th Street Disposal Site, Edgewood Area, Aberdeen Proving Ground, Maryland.
Descriptive Note : Final rept.,
Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS GEOTECHNICAL LAB
Personal Author(s) : Sharp, Michael K. ; Simms, Janet
PDF Url : ADA306244
Report Date : SEP 1995
Pagination or Media Count : 55
Abstract : A geophysical investigation was conducted at 26th Street, Edgewood Area, Aberdeen Proving Ground (APG), to delineate anomalies indicative of a fill. Electrical resistivity, magnetic, electromagnetic (EM), and ground penetrating radar (GPR) geophysical survey methods were employed to meet this objective. The investigation was carried out in the area immediately west of 26th Street and on the street. The tests were successful in delineating the lateral boundaries of the fill in a north-south, east-west direction. The electrical resistivity and GPR tests were successful in determining an approximation of the depth and thickness of the fill. The study provided several conclusions. First, the disposal material contains large amounts of iron (or ferrous material) as evidenced from the magnetometer survey. The magnetometer will only respond to ferrous objects. This conclusion is supported by the EM-31 in-phase and EM-61 data which indicates a material with a very high conductivity, which would also indicate metallic material. Second, an approximate fill depth can be determined from the GPR and resistivity data. The resistivity sounding through this area indicates a thickness of approximately 1 m. The radar profiles indicate thicknesses of 3 to 4 ft along a north-south axis. A conservative estimate of fill thickness is 5 ft. Third, the fill does not appear to extend under 26th Street. jg p55
Descriptors : *CONDUCTIVITY, *SITES, *RADAR, *SURVEYS, *WASTE DISPOSAL, *DISPOSAL, *GEOPHYSICS, *FILLING, ELECTROMAGNETIC FIELDS, METALS, THICKNESS, HIGH RATE, MATERIALS, COMPOSITE MATERIALS, RESISTANCE, DEPTH, PROFILES, ELECTRICAL RESISTANCE, IRON ALLOYS, NORTH(DIRECTION), SOUTH(DIRECTION), SOUNDING, EARTH PENETRATING DEVICES, MAGNETOMETERS.
Subject Categories : Solid Wastes Pollution and Control
Properties of Metals and Alloys
Logistics, Military Facilities and Supplies
Distribution Statement : APPROVED FOR PUBLIC RELEASE