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i <br /> 1 <br /> APPENDIX B <br /> LABORATORY TESTING <br /> General <br /> Soil samples obtained from the test pits were transported to our laboratory and examined to confirm or <br /> , engineering <br /> I Representative <br /> modifyfieldclassifications samples wereas selectedwellas forto laboratorevaluatey testing consistingandindex of moisture <br /> properties contentofthe andsoil grain sizesamples. <br /> distribution determination. The tests were performed in general accordance with test methods of the <br /> American Society for Testing and Materials(ASTM)or other applicable procedures. <br /> Soil Classification <br /> All soil samples obtained from the test pits were visually classified in the field and/or in our laboratory using a <br /> system based on the Unified Soil Classification System (USCS) and ASTM classification methods. ASTM test <br /> method D 2488 was used to visually classify the soil samples, while ASTM D 2487 was used to classify the <br /> soils based on laboratory tests results. These classification procedures are incorporated in the test pit logs <br /> shown in Figures A-2 through A-6. <br /> Moisture Content Testing <br /> Moisture content tests were completed in general accordance with ASTM D 2216 for representative samples <br /> obtained from the test pits. The results of these tests are presented on the test pit logs shown in Figures A-2 <br /> through A-6 at the depths at which the samples were obtained. <br /> Sieve Analyses <br /> Sieve analyses were performed on three samples in general accordance with ASTM D 422 to determine the <br /> sample grain size distribution. The wet sieve analysis method was used to determine the percentage of soil <br /> greater than the U.S. No. 200 mesh sieve. The results of the sieve analyses were plotted, classified in <br /> general accordance with the Unified Soil Classification System (USCS), and are presented in Figure B-1. The <br /> smallest sieve used was the U.S. No 200 (0.075 mm); for the sieve analysis completed in the sandy fill, Dio <br /> was 0.15 mm;for both sieve analyses completed in the glacial till,Dio was smaller than 0.075 mm. <br /> 1 <br /> I <br /> I <br /> I <br /> L <br /> October30,2009 Page B-1 <br /> GEOENGlNEERS� g <br /> File No.04,32-031-02 <br /> i <br />