Wide Area UXO Contamination Evaluation by Transect Magnetometer Surveys: Pueblo Precision Bombing and Pattern Gunnery Range No. 2

摘要

As part of the Environmental Security Technology Certification Program (ESTCP) Wide Area Assessment (WAA) Pilot Project conducted during the second half of calendar 2005, Nova Research, Inc. conducted a series of magnetometer surveys at the Pueblo Precision Bombing and Pattern Gunnery Range No. 2 (Pueblo PBR No. 2), south of La Junta, CO using the Naval Research Laboratory (NRL) Multi-sensor Towed Array System (MTADS). Two types of surveys were conducted. First, 143 acres of transect surveys were conducted based on survey design plans generated by Pacific Northwest National Laboratory and Sandia National Laboratory. These plans were designed to allow the tow vehicle to efficiently sample the entire demonstration site while maintaining a statistically defensible probability of traversing areas of interest within the demonstration site that matched the criteria developed from the available archive data and collected in the Conceptual Site Model (CSM) version 0. Secondly, 379 acres of total coverage surveys were conducted in small areas (30- 85 acres per area) to better characterize the overall site. The goals of the total coverage surveys were a) to characterize background anomaly densities in areas found to be quiet (low anomaly density) in the transect survey results, b) to characterize the falloff behavior of the anomaly density as a function of distance from the two known Targets (3 and 4) within the demonstration site, and c) to gather further information on the Suspected 75mm Range area of interest. This data report serves to document the data collected during the demonstration in preparation for the validation phase of the program and further analysis.