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5 in terms of three intrusive activities that take place on the site. First is clearing. trees, second is drilling holes and the third is digging test borings. Most of site 11 is heavily wooded. He feels there will be a lot of permanent damage. He asked that the Board take into consideration the problems he will have to deal with later on when the testing is finished. Vic Knight _clarified for Commissioner Halkiotis that if anyone called Tony Laws, the person never identified himself as}being from Joyce Engineering and having any interest in trying to get answers to landfill issues. Also, Bob Cheek stated he has not spoken to anyone in Orange County concerning landfill issues in over two months. John Link stated that Tony Laws met with Joyce Engineering on July 30. The letter indicated they had met on July 7. Rod Visser -noted that they met with Joyce- Engineering specifically because of the letter and .other questions they had.... Commissioner Halkiotis stated for the record that it hurts the credibility of Joyce Engineering if in fact a letter-was. written with false information. Reggie Gillespie referred to information they have previously provided to the Board about the landfill. He is against the geotechnical work that is proposed. He suggests that the appropriate approach is to identify the best site that has the likelihood of being selected as the landfill and only be intrusive on that site. He understands it is necessary to get technical and scientific information but feels there are other ways to get this information that will not subject the landowners of the four sites to the intrusive and invasive geotechnical investigation that Joyce Engineering has proposed. He referred to a letter dated August 3, 1992 to him from Aquaterra. The letter explained the prospecting geophysical method from which useful information can be used to select appropriate sites for further investigation. One procedure is the magnetic prospecting method. He summarized the four key advantages of using this method with the most important being that it is not invasive ---the site will not be disturbed as far as cutting trees, clearing land, cutting roads or drilling the land. The cost is significantly cheaper than other methods. Another approach is the electrical resistivity soundings which can identify the vertical extent of a site being evaluated for a possible landfill. Another way to identify the vertical extent of a site is seismic refraction technique. This technique uses information gathered of the arrival times of seismic compressional waves to determine depths and competency of definite geologic units. The last technique is the electromagnetic method where a remote transmitter is used as an energy source with frequencies varying between 15 to 30 kilohertz. In conclusion, he feels that the geophysical methods can be a successful screening tool as part of a landfill siting study. The non-invasive approach with low cost and ease of implementation can be very useful to screen a number of prospective sites to a more manageable number for more detailed evaluation. He urged the Commissioners to not approve a technique that will be invasive. Scott Franklin spoke in support of drilling four sites - not necessarily these .four sites but four legitimate sites. He asked that they review the sites again. It is not enough to make a decision by using topographic maps. He is also concerned about the landowners who serve on the Site Selection Committee and their conflict of interest.