Laserfiche WebLink
effective and economical means to clean up the soils <br /> contamination onsite. Sampling is being done in the North <br /> Balloon area for metals . This was caused by the disposal of used <br /> sandblasting material generated at a nearby facility in the past. <br /> The sandblasting grit was disposed of in the North Balloon area. <br /> The soil in this area contains lead and chromium. About 500 <br /> samples have been taken to date. <br /> Sampling for pesticides has taken place also. There is soil <br /> contaminated with pesticides in an area where they were stored <br /> and mixed. The Sharpe Facility plans to determine a feasible way <br /> to clean up the pesticide contaminated soil . <br /> Underground Storage Tanks (USTs ) : <br /> There has been some work with USTs . AEC has been exploring USTs <br /> that handle waste oils and solvents . CoE will be responsible for <br /> USTs that contain diesels and gasoline. AEC had been sampling <br /> via drilling holes in the area of the UST, but it was found to be <br /> an inadequate way to investigate and the laboratories were not <br /> getting a good sample. AEC then took a different approach which <br /> is called "test pitting" . They would utilize a backhoe and dig <br /> until all the contamination was gone. The soil has been removed, <br /> but is required that the soil be stored. AEC is currently <br /> working with the regulatory agencies on an economical way to <br /> dispose of the contaminated soil. The majority of this soil is <br /> contaminated with gasoline and diesel. <br /> Vapor Extraction: <br /> There are still compounds, like TCE, in the soil and it is felt <br /> that they will continue to be a source of contamination to the <br /> ground water. The Sharpe Facility is looking at a technology <br /> called in-situ vapor extraction. AEC had an overhead that <br /> explained this technology. AEC has constructed two vapor <br /> extraction plants . The feasibility of the plants has been <br /> examined, but there are a lot of unanswered questions . It is <br /> planned to run the vapor extraction plants for three months and <br /> gather data to see what has been occurring. These plants are <br /> mobile and are not as expensive as the ground water treatment <br /> plants . <br /> Reports : <br /> Reports are developed and presented to the regulatory agencies <br /> for their concurrence. Another aspect is the process - going <br /> from the investigation, to the community acceptance, and then to <br /> the ROD. This process can be extremely lengthy. The regulatory <br /> agencies have suggested that in the areas where there is clearly <br /> 3 <br />