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201402274
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Last modified
4/18/2014 8:37:28 AM
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4/18/2014 8:37:27 AM
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201402274
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11 <br />2014022/4 <br />2. The Property (specifically Load Line I) was previously used as a load, assemble <br />and pack (LAP) facility for the production of artillery shells, mines, bombs, and <br />rockets. The following munitions responses were conducted. <br />In 2001 -2003, thermal decomposition and demolition of the <br />buildings that remained at the load lines was performed. Following <br />demolition of the buildings, the soil under the former building <br />locations was tested to determine if the explosives content of the <br />soil exceeded 10% (levels above this are considered explosive <br />safety hazards). Any soil exceeding this level was remediated. <br />ii. In 2003 -2004, a geophysical investigation of Load Line 1 was <br />conducted, as part of activities designed to certify the load line <br />properties safe for transfer. The purpose of this investigation was <br />to locate potential buried MEC items at the load line. The <br />investigation was conducted at areas outside the building <br />footprints. Following geophysical mapping of anomalies, intrusive <br />investigation of the anomalies was conducted. At Load Line 1, a <br />total of 13,110 anomalies were dug, the majority of which were <br />buried metal objects related to farming or construction activities. <br />Two of the anomalies that were dug were rocket warheads, an <br />M28A 3.5 -inch HEAT Rocket warhead and an M29A2 3.5 -inch <br />Practice Rocket. It was determined that the warheads did not <br />contain any explosive residue so they were classified as munitions <br />debris and the items were properly removed. In addition, two <br />burial pits with asbestos - containing material were located during <br />this investigation. <br />iii. Work to remove buried asbestos - cement sewer lines on Load Line <br />1 was conducted in March through May of 2006. After sewer <br />removal, limited subsurface screening of soils under the sewers <br />was performed to confirm that the explosives content of the soil <br />was not greater than 10 %. The majority of the samples for Load <br />Line 1 resulted in a level of less than 0.001 % total explosives, <br />with the highest result being 0.0032% total explosives. Because <br />these results were far below the value that is considered an <br />explosive safety hazard (greater than 10% explosives), the soils <br />beneath the sewer lines were left in place. <br />iv. The buried asbestos debris areas that were discovered as part of the <br />geophysical investigation were excavated and removed in June and <br />July of 2006. The purpose of this removal project was also to <br />remove any buried MEC that might be associated with the asbestos <br />debris areas and to obtain 5X certification for the remaining <br />portions of Load Line 1. The excavated soils and waste materials <br />were inspected for MEC and verification samples were collected <br />and analyzed. No MEC was discovered during this project. <br />
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