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PROPOSED LIBERTY HALL,EVEREIT COMMUNITY COLLEGE " Everett,Washington <br /> APPENDIX B <br /> LABORATORY TESTING <br /> General <br /> Soil samples obtained from the borings were transported to our laboratory and examined to <br /> confirm or modify field classifications, as well as to evaluate index properties of the soil samples. <br /> Representative samples were selected for laboratory testing consisting of the determination of the <br /> moisture content, percent fines, and Atterberg Limits. The tests were performed in general <br /> accordance with test methods of the American Society for Testing and Materials (ASTM) or other <br /> applicable procedures. • <br /> Soil Classifications <br /> All soil samples obtained from the borings were visually classified in the field and/or in our <br /> laboratory using a system based on the Unified Soil Classification System (USCS) and ASTM <br /> classification methods. ASTM test method D 2488 was used to visually classify the soil samples, <br /> while ASTM D 2487 was used to classify the soils based on laboratory tests results. These <br /> classification procedures are incorporated in the boring logs shown in Figures A-2 through A-8, in <br /> Appendix A. <br /> Moisture Content Testing <br /> Moisture content tests were completed in general accordance with ASTM D 2216 for <br /> representative samples obtained from the borings. The results of these tests are presented on the <br /> boring logs in Appendix A at the depths at which the samples were obtained. <br /> • <br /> Percent Passing U.S. No.200 Sieve <br /> Selected samples were "washed" through the No. 200 mesh sieve to determine the relative <br /> percentages of coarse and fine-grained particles in the soil. The percent passing value (%F) <br /> represents the percentage by weight of the sample finer than the U.S. No. 200 sieve. These tests <br /> were conducted to verify field descriptions and to determine the fines content for analysis <br /> purposes. The tests were conducted in general accordance with ASTM D 1140,and the results are <br /> shown on the boring logs at the respective sample depth. <br /> Atterberg Limits Testing <br /> Atterberg limits testing was performed on three fine-grained soil samples. The tests were used to <br /> classify the soils as well as to evaluate index properties. The liquid limit and the plastic limit were <br /> estimated through a procedure performed in general accordance with ASTM D 4318. The results <br /> of the Atterberg limits testing are presented in Figure B-1. <br /> • <br /> GEOENGINEER) June 10,2010 Page B-1 <br /> Ale No.5836.010.00 <br />