RANGE EVALUATION SOFTWARE TOOL (REST):ASSESSMENT OF LEAD MIGRATION FROM SMALL ARMS RANGES
The REST software utilizes commonly available, site-specific information on topography, weather conditions, and range use to provide a qualitative assessment for lead migration. The information includes the number of rounds fired, soil conditions, wind speed and rainfall. The pathways for migration included in the program are transport with wind, surface water run-off, and percolation toward groundwater. REST provides a qualitative indication as to whether or not a migration problem exists in the form of a four-level, color-coded ranking. The ranking uses numeric scores from five categories: (1) mass of ammunition, (2) potential for corrosion, (3) aerial transport, (4) surface water transport, and (5) groundwater transport. This presentation will describe how to use the REST software including the details of the data input, the physics behind the calculation of the rankings, and the output.