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I <br /> I Subsurface Erploration ar,d <br /> Silver�e Ma!!Baael!Oneg Store Geotechnical Engineerirg Report <br /> Ei�errtt LVa.shingto�i Project and Site Conditions <br /> � 4.2 F�drolo� _ <br /> � Ground water seepage was encountered in our exploration borings at the time of our fie(d study <br /> in n'ovember 2004 and was encountered in Landads borings at a depth of about 5 feet. <br /> � Ground water was encountered in exploration pits EP-6, EP-7, EP-8, and EP-12 at a depth of <br /> about 4 feet. The seepage probably indicated a perched condition. Perched water occurs when <br /> surface water infiltrates down through relatively low permeabiliry soils and becomes trapped or <br /> � "perched" within �u�:1y, more permeable layers within the till. Seepage may also occur at <br /> random depths and locations in unsupervised or non-uniform fills. It should be noted that <br /> Ilucwations in tlie level of the ground water might occur duc to the time of the ycar, variations <br /> i in dte amount of precipitation, �uid changes in site development. <br /> � <br /> � <br /> � <br /> � I <br /> 1 <br /> � <br /> 1 <br /> 1 <br /> I <br /> � <br /> I <br /> I <br /> Decembe.�J0, _'004 .ISSOCIATED EARTIi SCILNCES, INC. � <br /> Ii,,s,:J.n=n:�.vaz-r.���,r,cwsrisi�xEu�r PageS �� <br />