Remedy Risk Evaluation for the Shell Section 36 Trench Area of the Rocky MountainArsenal

摘要

The Rocky Mountain Arsenal (RMA) is a 17,000-acre U.S. Army facility located inAdams County, Colorado. Liquid and solid wastes produced by Shell operations in the South Plants area were disposed of in an on-post section of the RMA known as the Shell Section 36 Trench (Shell Trench) Area. While there is considerable uncertainty regarding the composition of these wastes, historical process records and environmental sampling results indicate the presence of a heterogeneous mixture of chemicals consisting primarily of organochlorine pesticides and volatile organic compounds. The Army may have also used this area of the RMA for the disposal of munitions and chemical agents.