Abstract ID Abstract Title Abstract Category Abstract Synopsis Using

							      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.