Environmental geophysics at J-Field, Aberdeen Proving Ground, Maryland

Abstract

Presented in this technical memo are preliminary results of ongoing work or work that is more limited in scope and depth than that described in formal reports issued by the ES Division.

White phosphorus pits focused feasibility study final July 2007.

“…A magnetic survey of the WPP revealed an east-west line of localized anomalies north of the Northern Pit that could be indicative of an additional buried trench. However, no such linear feature was revealed in the companion conductivity survey of the same area, and a ground-penetrating radar survey of the area did not reveal the presence of an additional buried trench (Daudt et al 1994). In part to address the potential presence of a buried trench, XRF sample locations in Grid 2 are located near the suspected location of the buried trench.…”

Focused feasibility study for surface soil at the main pits and pushout area, J-field toxic burning pits area, Aberdeen Proving Ground, Maryland

“…These pits were delineated during the RI by aerial photographic analysis (Yuen et al 1996) and geophysical surveys (Daudt et al 1994; Davies et al 1995). Four surface soil samples (OT16A, OT16B, OT19A, and OT19B; see Figure D.4) were collected from two locations near the VX pit.…”

“…The sampling locations ( Figure D.5) were selected on the basis of results of a detailed geophysical investigation conducted in the summer of 1993 (Daudt et al 1994), interpretation of aerial photographs, archival sampling results, and soil-gas sampling results. For example, sampling locations in the southern main pit were near the EMFLUX@ monitoring point that showed the greatest soil-gas flux rates.…”