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Subsurface Erplorotion m�d <br /> 20?6 Grand Avenue Geotechnica[Engineenng Report <br /> Everen Washin¢ron Projea and Site Condirirns <br /> These sedimen[s have been consolidated by the weight of several thousand feet of glacial ice, <br /> and are suitable for foundation support if properly prepared according to the recommendations <br /> presented in this report. <br /> The geologic map of the Marysville quadrangle, Washington by James P. Minard, dated 1980, <br /> has mapped the area as consisting of Vashon advance sed'unents. Our subsurface explorations <br /> and soil cfassifications concur with the pubfished geologic map. <br /> 4.2 HydroloeY <br /> As noted on the attached logs, wet to saturated soils were encountered within EB-1 at a depth <br /> of 20 feet and within EB-2 at a depth of 10 feet. The wet condition of soils at depth is likely <br /> caused by perching of ground water on less permeable finer-grained sediments within the <br /> stratified Esperance sand. Excavation cuts into the sediments will daylight the perched ground <br /> water layers. <br /> June l 9, 2000 ASSOClA7ED EARTN SClE�\'CES, INC. <br /> ."�S�J�-h;CLU3l9G1 -f��OLlni6-00-W]A' EXHIBIT �� Page4 <br /> P�!,E_�fJF /9 <br />