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t ' <br />A site in Greensboro was surveyed in <br />pumped for ground water remediation. <br />of fractures strildng N351' to 50 0E. An <br />150 gpm. <br />Mr. Reginald Gillespie <br />L2757 -92 <br />August 3, 1992 <br />Page 4 <br />an attempt to find fractures that could be <br />The electromagnetic survey detected a series <br />extraction well was installed that produces <br />Geophysics as a Tool in Landfill Siting Studies <br />Overall, it is felt that the geophysical methods described above can be a successful <br />screening tool as part of a landfill siting study. The non- invasive approach, low cost <br />($4,000 to $8,000 per site), and ease of implementation can be very useful to screen a <br />number of prospective sites to a more manageable number for more detailed <br />evaluations. This approach has been used by Aquaterra in the past to produce more <br />cost- effective results instead of using soil boring programs at every site. Even though <br />these geophysical methods do not eliminate the need for more detailed study (i.e., <br />invasive investigation) on a prospective site to support a sanitary landfill application, <br />they can be used to minimize the number of sites or even to target a specific site for <br />detailed and invasive studies. <br />If you require additional information, please contact us at (919) 859 -9987. <br />Sincerely, <br />AQUATERRA, INC. <br />Phillip L. Rahn, P.G. <br />President <br />PLR /suz <br />AQLIATERRA <br />