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i . <br /> � <br /> 1.2 SCOPE OF SERVICES <br /> � The purpose of our sen ices is to assisl ihe project Icam with tlic ecotechnical aspects of thc <br /> JanSport project. Wc perfonned a suhsurfacc crploration program at the sitc and dcvcloped <br /> �, conclusions and geotechnical recontmcndations for thc pmposed imprm cments. Our spccific scopc <br /> of sen�ices included the follo�cine tasks. <br /> 1. Locatc and dwr c�istinc utilitics. <br /> � 2. Review available topocraphic infomiatinn for the fornier pit under Lots I and 2 and cstimatc <br /> fill depths and original site erades. Evaluate the foMprint and height of a lar�c ovcrhurdcn till <br /> stockpile located on the sitc(north side). <br /> � 3. Esplom subsurface soil and ground w•ater conditinns of the e�isting uncontrolled merburden <br /> fill soils under the buildine location by advancing eight borings through the fill and into the <br /> y native dense fonner pit floor sand. The borings were advanced to depths ranging from 1 I'/: io <br /> � 2G'h feet below the ground surface. <br /> �t. Eraluate pertinent physical and engineerine characteristics of the fill soils based on laboratory <br /> � tcsts perfortned on samples obtained from the borings. <br /> 5. Provide recommcndations for site prepara[ion and earthwork induding suitability of on-sitc <br /> � soils for use as structural fill.con,traints for wet weather construction. gradation crileria for any <br /> swctural fill material ��hich may have to be imported, and fill placement and compaction <br /> requircments. Provide recommendations for temporan�and pertnanent cut and/or fill slopes. <br /> � 6. Develop recommendations 1'or foundation design including allowable wil bearing pressurcs, <br /> minimum footing sizes for pad and strip footings, and minimum depth of footings below <br /> r finished grade. Include allo�cable increases in soil bearing when supporting seismic generated <br /> � loads. <br /> 7. Estimate global settlement for various pans of the sitc depending on previous fill stockpile <br /> I preloading and the densin� of the below erade fill. Estimate local settlement below spread <br /> footings. <br /> � 8. Provide recommendations for design of loading dock retaining �t•alls including active and <br /> passive lateral soil pressures,and the coefficient of base friction for resisting lateral forces. <br /> 9. Provide recommendations for support of on-grade iloor slabs including capillary break and <br /> lvapor retarder,as appropriate. <br /> ( ]0. Discuss seismiciry at the site and provide seismic design parameters including soil profile type <br /> and site coefTicient based on 1997 Unifomt Building Code(UBC)cri[eria. <br /> � 11. Provide recommendations for subgrade preparation in access driveµ�ays and parking areas. <br /> ' 12. Provide recommendations for surface and subsudace drainage based on ground µ�ater <br /> I conditions cncountered in the explorations or expected in the area. Provide comments on the <br /> potential settlement from water infiltration into the fill. <br /> 13. Comment on any anticipated construction difficulties identi6ed from the resulu of our �.ite <br /> ( studies and from our e�perience at the CSR site. <br /> I <br /> ( G c o E n g i n c c r s 2 FilcNo. 75R4•002-00•11301050101 �j,,L <br /> 1 'w <br />