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. SIERRA TESTING "BCRATCRIES, INC. <br /> GEOTECHNICAL AND MATERIALS TESTING SERVICES <br /> Project No 99-145 <br /> 31 March 1999 <br /> Upgradient Environmental Consultants <br /> 3369 Kimberly Road <br /> Cameron Park, California 95682 <br /> Attention Mr Clyde Hebbron <br /> Subject Gillies <br /> LABORATORY TEST RESULTS <br /> Dear Mr Hebbron <br /> As requested, Sierra Testing Laboratories, Inc. has performed laboratory testing ori three <br /> samples of material from the subject site The samples were identified as GT 10 153 5'- <br /> 54', GT 11 80 5'-81 ', and GT 11 105 5'-106' The samples were received by our <br /> laboratory on 25 March 1999 The test performed on the submitted samples was as <br /> follows <br /> 1) Flexible - wall Permeability (ASTM D5084) <br /> The results of the Permeability tests are presented on Table 1, attached <br /> We appreciate the opportunity to be of service to you on this project and look forward to <br /> providing additional service, as needed, in the future <br /> Should you have any questions or require additional information, please contact our office <br /> at your convenience <br /> Very truly yours, <br /> Chad M Walker <br /> Project Manager <br /> enclosure Table 1 <br /> 5088-B Hillsdale Circle, EI Dorado Hills, CA 95762 (916) 939-3460 Fax (916) 939-3507 <br />