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C <br />KLEitiFELDER <br />File No. 24-2206-01.A06 <br />January 2, 1991 <br />of the soils encountered in the test borings were maintained by a <br />representative of our firm who assisted in obtaining relatively <br />undisturbed soil samples for visual observation, classification, <br />and laboratory testing. Soil samples were obtained by driving a <br />2 -inch inside diameter sampler into the soil using a 140 -pound <br />hammer failing approximately 30 inches. The number of blows <br />required to advance the sanpler is presented on the Logs of <br />Borings, Plates A-3 through A-9, at the corresponding sample <br />locations. In addition, 3 cross sections which show relative <br />elevations of the soil strata have been included on Plates A-10 <br />through A-12. The cross section locations are shown on the site <br />plan, Plate A-1. <br />SOIL CONDITIONS <br />The soil conditions encountered at the locations explored varied <br />from clayey and sandy silt with limited amounts of silty clay to <br />siltv and clean sand that extended to the maximum- depths explored. <br />These soils were generally underlain by hard to very dense <br />alternating layers of clays, sands, and silts that extended to the <br />maximum depths explored. <br />No free groundwater was encountered in the borings drilled for this <br />investigation. It is possible that groundwater conditions at the <br />site could change at some time in the future due to variations in <br />rainfall, groundwater withdrawal, construction activities or other <br />factors not apparent at the time our test borings were drilled. <br />The above is a general summary of the soil and groundwater <br />conditions encountered in the test borings drilled for this <br />investigation. More detailed descriptions of the soils encountered <br />in each boring are noted on the Logs of Borings. All soils have <br />Copyright 1991 Kleinfelder, Inc. 3 <br />