Toxicity Testing of Soil Samples from Joliet Army Ammunition Plant, Illinois
Final rept. May 1992-Jan 1993
EDGEWOOD RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD
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Environmental toxicity testing and soil chemical analyses were performed as part of an ecological risk assessment of the Joliet Army Ammunition Plant JAAP, Joliet, IL. Test soils were collected from six sites at the plant a load and pack area, two open burning areas, a lead azide area, a 2,4,6- trinitrotoluene TNT manufacturing site, and an evaporation bed. Control soil samples were collected from an adjacent area. Soil toxicity was determined using early seedling growth and vigor tests, earthworm survival and growth tests, and the Microtox assays. Relative toxicity of soils was determined within each area based on statistical significance p 0.05 of plant and earthworm growth and survival, and Microtox EC 5O. Samples were designated as having high, moderate, or no toxicity. Soil samples that had significant toxicity according to at least one test and representative samples showing no toxicity were analyzed for munitions by High Performance Liquid Chromatography. Chemical residues found in soils included TNT, 1,3,5-trinitrobenzene TNB, 2,4-dinitrotoluene 2,4-DNT, 2,6-DNT, 2-amino-4,6-DNT, 4-amino-2,6-DNT, cyclotrimethylenetrinitramine RDX, and cyclotetramethylenetetranitramine HMX. All soils with no significant toxicity were void of these chemicals.