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Twenty-two to twenty-four of the auger borings will be sampled continuously in <br /> the upper 20 feet of the subsurface and at five foot intervals thereafter. Shallow <br /> composite samples will be taken from the auger f ites as the auger is advanced <br /> from 0 to 10 feet below the ground surface. Additionally, deep composite samples <br /> will be taken at deeper intervals in two or three selected soil test borings. It is <br /> estimated for this proposal that the borings will range between 40 and 60 feet in <br /> depth based on groundwater and bedrock conditions encountered. All borings will <br /> be logged by a qualified geologist who will determine the depth of the borings <br /> during drilling operations. Water level readings will be taken at the completion of <br /> the drilling operations and after 24 hours, upon completion. <br /> • Survey of Boring Locations - Land surveying will be utilized to locate the borings <br /> on the site and determine the elevations of the ground surface at each boring. <br /> Additionally, any significant geologic features found during the geologic <br /> reconnaissance or wetlands found during the site reconnaissance will be located <br /> • Soil Laboratory Testing- Selected soil samples from each site will be submitted to <br /> the soil laboratory for evaluation of index and engineering properties. The index <br /> tests will be used to clarify the soils and will include grain size distribution, natural <br /> moisture content, and Attenberg Limits. The engineering properties tests will be <br /> used to evaluate the engineering characteristics of the soil for use in the design and <br /> construction of the proposed landfill; these tests will include the Standard Proctor <br /> tests (density) and remodeled permeability tests. <br /> • Preliminary Geotechnical Report- Once the field and laboratory work is <br /> completed, the subsurface conditions will be evaluated to formulate preliminary <br /> conclusions concerning the following items: <br /> • depth to bedrock <br /> • depth to groundwater <br /> • groundwater flow directions <br /> • soil utilization as liner material <br /> • soil utilization as cover material <br /> • engineering properties of on-site soils <br /> This evaluation will be used to determine the presence of fatal flaws for each site. <br /> Additionally, this preliminary evaluation will be used in the preliminary engineering <br /> evaluation of each site that will be completed in the next task of this project. <br /> Ranking of the sites is not anticipated to be completed in the preliminary <br /> geotechnical report unless a fatal flaw or other significant disadvantage is <br /> encountered on a site. Rankings will be established once the preliminary <br /> engineering evaluation is completed. <br /> Since we do not anticipate a ranking to result directly from the geotechnical work, <br /> we do not anticipate a formal presentation of this report to the LSC at the <br /> completion of this geotechnical work although copies will be made available to the <br /> 3 NAMMAIrdisa <br /> __ <br /> /r■r�7y,,��y���,� <br /> «Printed on recycled paper <br />