Book Description
The Eastern Study Area (ESA) Report summarizes a portion of the Remedial Investigation (RI) conducted at Rocky Mountain Arsenal (RMA). This report, Volume VII of the On-Post RI, integrates the study area history, geology, and hydrology with the results from soil, surface water, groundwater, air, biota, and structures investigations to identify contaminant sources, distribution patterns, and migration pathways. The ESA encompasses approximately 10 square miles on the eastern tier of RMA, and includes all of Sections 5, 19, 20, 30, 31, and 32 and portions of Sections 6, 7, 8, 20, 24, and 25. The ESA shares information along the western boundary from five adjacent study areas, including the Southern, South Plants, Central, North Plants, and North Central Study Areas. The boundaries of the ESA were chosen to delineate an area which is east of the primary manufacturing and disposal facilities on RMA. As the boundaries are drawn, no groundwater contaminant plumes are identified within the ESA, and the entire length of First Creek within RMA boundaries is in the ESA.