Abstract ID Abstract Title Abstract Category Abstract Synopsis Using
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Abstract ID: 8314 Abstract Title: Using "Visual Sample Plan" to Delineate Munitions Response Sites Abstract Category: Cleanup - Munitions Response Abstract Synopsis: Visual Sample Plan’s geostatistical density mapping tool was used to delineate munitions response sites as part of a Remedial Investigation of the Closed Ranges at F.E. Warren Air Force Base, Wyoming. This tool assists the Air Force with land use planning and risk management strategies. Abstract: F.E. Warren Air Force Base, Wyoming (FEW) contains approximately 3,000 acres of closed ranges that require munitions response actions appropriate for proposed future land use. URS Group Inc. (URS) was tasked by the Air Force to conduct a Remedial Investigation (RI) under CERCLA to evaluate the nature and extent of munitions and explosives of concern (MEC) and munitions constituent (MC) contamination to guide land use planning and risk management strategies. Geophysical data were collected along nearly 200 km of transects spaced at 20 meter intervals. 12,609 target anomalies were identified and intrusively investigated, yielding 75mm projectiles, 37mm projectiles, mortars, grenades, and associated munitions debris. Queries were run for each individual MEC type, and the data was used with Visual Sample Plan’s (VSP) geostatistical density mapping tool to generate density maps of the Munitions Response Area (MRA) with respect to each MEC type. These density maps were used to select MC sampling locations in the most densely saturated areas and to delineate MEC-specific Munitions Response Sites (MRS). The establishment of these MRSs allowed the 3000-acre MRA to be subdivided into manageable parcels of land that could be evaluated on an individual basis for remedial action activities appropriate to the desired future land use. The incorporation of VSP into the RI provided the Air Force with a statistically defensible method of delineating MRSs and allowing well-informed land use planning and risk management strategies. Primary Author: Mr. Andy Gasho URS Group, Inc. Secondary Author: Mr. Brian Powers URS Group, Inc.