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• APPENDIX B <br /> LABORATORY TESTING <br /> Soil samples obtained from the explorations were transported to our laboratory and examined to confirm <br /> or modify field classifications, as well as to evaluate index properties of the soil samples. Representative <br /> samples were selected for laboratory testing consisting of fines content,sieve analyses,Atterberg limit,and <br /> organic content.The tests were performed in general accordance with test methods of ASTM International <br /> (ASTM)or other applicable procedures. <br /> Percent Passing U.S. No 200 Sieve <br /> Selected samples were "washed" through the U.S. No. 200 mesh sieve to determine the relative <br /> percentages of coarse- and fine-grained particles in the soil. The percent passing values represent the <br /> percentage by weight of the sample finer than the U.S. No. 200 sieve.These tests were conducted to verify <br /> field descriptions and to determine the fines content for analysis purposes. The tests were conducted in <br /> general accordance with ASTM D 1140,and the results are shown on the exploration logs in Appendix A at <br /> the representative sample depths. <br /> Sieve Analysis <br /> Sieve analyses were performed on selected samples in general accordance with ASTM D 422. The wet <br /> sieve analysis method was used to determine the percentage of soil greater than the U.S. No. 200 mesh <br /> sieve.The results of the sieve analyses were plotted,were classified in general accordance with the Unified <br /> Soil Classification System (USCS)and are presented in Figures B-1 and B-2. <br /> Atterberg Limits <br /> Atterberg limits testing was performed on selected fine-grained soil samples.The tests were used to classify <br /> the soil as well as to evaluate index properties.The liquid limit and the plastic limit were estimated through <br /> a procedure performed in general accordance with ASTM D 4318.The results of the Atterberg limits testing <br /> are summarized in Figure B-3. <br /> Organic Content <br /> The organic content of selected samples was determined in general accordance with ASTM D 2974. The <br /> test results are used to aid in determining the moisture content and organic content of the soil, soil <br /> classification and correlation with other pertinent engineering soil properties.The test results are presented <br /> on the exploration logs in Appendix A at the representative sample depths. <br /> • <br /> GEOENGINEERS May 31,2017 Page B-1 <br /> File No.22360-003-DO <br />