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r •Z .; r <br /> GEOTECHNICAL EVALUATION OF RECOVERED SOIL SAMPLES <br /> Soil samples recovered during exploration were visually examined to estimate distribution of grain <br /> sizes,plasticity,consistency,moisture condition,color,presence of lenses and seams,and apparent <br /> geologic origin. We then classified the soils according to type using the Unified Soil Classification <br /> System(ASTM D2488). A chart describing the classification system and general notes explaining <br /> soil sampling procedures are presented within other report appendices. <br /> Note that the stratification depth lines between soil types on the logs are estimated based on the <br /> available data. Insitu,the transition between soil types may be distinct or gradual in either the <br /> horizontal or vertical directions. The soil conditions have been established at our specific boring <br /> locations only. Variations in the soil stratigraphy may occur between and around the borings,with <br /> the nature and extent of such change not readily evident until exposed by excavation. These <br /> variations must be properly assessed when utilizing the information presented on the boring logs. <br /> We request that you,your design team or other contractors contact NTT immediately if local site <br /> conditions differ from those assumed by this report,as we would need to review how such changes <br /> impact our report recommendations. Such contact would also allow us to revise our <br /> recommendations as necessary to account for the changed site conditions. <br />