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|Title:||Natural attenuation of explosives in soil and water systems at Department of Defense sites : interim report|
|Authors:||Pennington, Judith C.|
Harrelson, Danny W.
Brannon, James M.
Zakikhani, Mansour, 1954-
Clarke, Joan U.
Fredrickson, Herbert L.
Myers, Tommy E.
May, James H.
Jenkins, Thomas F.
Perkins, Edward J.
Hayes, Charolett A.
Ringelberg, David B.
Townsend, Daniel M.
|Keywords:||Groundwater--Pollution--Environmental aspects--Mathematical models|
Hazardous wastes--Natural attenuation
|Publisher:||Environmental Laboratory (U.S.)|
U.S. Army Engineer Waterways Experiment Station.
|Series/Report no.:||Technical Report ; EL-99-8.|
|Abstract:||Natural attenuation as a remedial alternative may be appropriate where natural processes are sufficient to protect receptors of concern. The objectives of this project were to demonstrate natural attenuation of explosives at an Army site, optimize groundwater monitoring procedures to generate reliable trends in explosives concentrations over time, evaluate the significance of site capacity on the ultimate fate and transport at the site, apply biomarkers and stable isotopes as monitoring tools, use models for contaminant plume definition and predictions of future contaminant extent, and develop a protocol for selection and implementation of natural attenuation of explosives. The field demonstration was conducted at the Louisiana Army Ammunition Plant and validated at Joliet Army Ammunition Plant. The demonstration included groundwater monitoring and modeling, a cone penetrometry sampling event to characterize site lithology and to obtain sample material for other parts of the study. Results demonstrated declining concentrations of explosives in groundwater over 2 years. The model predicted a shrinking plume over 20 years. Biomarkers demonstrated the microbial degradation potential of RDX and TNT in aquifer soils. Results demonstrated that natural attenuation is a viable option that should be among the options considered for remediation of explosives-contaminated sites.|
|Appears in Collections:||Technical Report|
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