Pilot Scale In-Situ Bioremediation Of Perchlorate-Contaminated Soils At The Longhorn Army Ammunition Plant INVESTIGATORS Valentine A. Nzengung 1 , K. C. Das 2 and James R. Kastner 2 1 Department of Geology, University of Georgia, Athens, GA 30602-2501 2 Biological and Agricultural Engineering Department, The University of Georgia, Athens, GA 30602-4435 Contract # : DAAA09-00-C-0060