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Ol/f1J_9J"1 OQ:15 5�i;2T1+351 PnHnTTONI DVLPMJT CO rn5� 14 <br /> GEOTHCHNICAL ENGINEERING STUDY <br /> Panattoni Dovolopmont Compeny, LLC E-10734-1 <br /> October 2, 2002 Page 9 <br /> In our opinion, lhe potnntit,! for widospread lique(action-induced sotUement et thfs sitr. <br /> is negligihle. <br /> Grou�d Motion Response: Tha 1997 U8C EarthquaKe repulations contain a static force <br /> procedure and a dynamic force procedure (or design-base shear calcul�tions. Dased on <br /> �� thc encountared soil conditions, it is our opinion :�oil pro`.ile rype Sc, Very Dem�e Soil <br /> nnd S�f! Rock Profile as defined ir� Table 1f-J shouid be used to characterize ihe site <br /> soils. <br /> Excnvations and Slopes <br /> The !ollowing information is pioJided solcly as � smvice tu our client. Unr'ar no <br /> circumstances should ihis inlarrnation ha interpreted to mean that ECI is assumf�i�7 <br /> responsibility for construction site safety or the Coniractor's octivities; such <br /> responsibiliry is not being impliud und should not bc� infarred. <br /> In no case should excavation slopes be flreuter than ihe limits specitied in local, ,tate, <br /> and Federal satety repulatione. �ased on tne information obtained irom our fiald <br /> exploratlon and laboratory testing, the medium-donse to very dense, silt, silty sand and <br /> porrty grodad snnd encountered in our borings would be classified os Type B by OSHA. <br /> Temporary cuts greater thnn lour feet in height in Type B soils ,hould he sloped at an <br /> inclination of 1H:1V (Honzontul:verticaq. if slopes of this inclination, or flattur, cennot <br /> be constructed, tempornry shorinp may be necessary. ECI should observe tamporary <br /> excavations to veri(y soil and groundwotor conditions, and the OSHA Soil Typ�. <br /> Shoring will help protect against slope or excavation collapse, and will pruvide <br /> protection to workers in the excavatiun. It tempornry shnrin� is required, we will be <br /> ❑vnilsble to provide shoring dosipn critnri�. <br /> Sito Droinnge <br /> i <br /> .'��.�undwater seepage was encountered a[ borin�� location D-10 at approximately <br /> ! ���:enty 120) fect below existing grade. However, we do not enticipate seepagc will !�c <br /> r,ountered in site excavations. However, seepage should be enticipated in deap <br /> �•��iit�� excovations. V✓here seepage is encountered, the bottom of the excavotion <br /> shoulA be sloped to one or more shellow sump pits. The collected water can then be <br /> pumpod trom these pits to en appropriate discharge point. Dapending on thc <br /> m:��nih�J� o} such seepoge, it may nlso be necessary to eCnnect ihe sump pils by a <br /> sye��ern u( cunnuc�or ucnr.hrr.. <br /> ���v,C�m„uim�no.mc. <br />