1505 INDUSTRY ST 2018-01-01 MF Import

OUO?;"t6�3 08:1F �032799351 PC.'WTT6:JI DVLPMNT CO PAGE 10 GEOTECHNICAL ENGINEERING STUDY Panattoni Development Compnny, LLC E10134-1 October 2, 2002 Page 5 Si[e Pre aration and Generol Eorthwork � 13ased on conditions encountared durin{� exploration and laboratory analysis, omsit2 soils are penerally sui[a�le tor use as structural fill tor this project. The silt encountered in Borin9 D-6 is not suitabla for use as structural till in its current candition, and should he mixed W�lh on•site poorly gradod sands encountered in the westarn portion of the site pri�r to use as strur,turel fill. The building and pavement arr,as and areas to receivc structural fill should be stripped and cic�orod of suriace vegetation, orc�anic matter, and other dele:erious material. No topsoil was encountered in our borinps. However, any topsoil encountered should be SVipped and removed, or may bo s[ockpiled on-�ite to be used in landscaping areas. - Tha stripped materials should not be mixed with mat�rials to be used as stfuctural fill, � Structural till is defined as compacted fill placed under buiidings, roadways, floor slabs, ' pavements, or other load-benrinp ereas. Structural fill under floor slabs, iootings and pavoments should be placed in horizontal lifts �ot exceeding twelve 112) inches ir� loose thickness and compocted to a minimum of 90 percent of its iaborelory maxirnum dry density determined in accordance with ASTM Test Desipnetion D-7557-81 (Modifiod Proctorl. The fill materiols should be pl�ced at or noar their optimum _ moisture content. The top twe�ve (72) inr,hos of fill under floar slabs and pavements should be compact�d to 95 percent ot ihe maximum density. - During dry wsether, most soils, which are compaotible and nomorganic, can be used as structural fiil. Based on the results ot our laboratory tosts, the on-site soils, at the iime oi our oxploration, appear nenr their optimum moisture conient and should be suitable for uso as structural filL Laboretory testing indicates the native poorly graded sand and silry sand have between 7 and 48 percont tines passing tha No. 200 sfeve. The silt oncounterod in BorinA f3-6 has 57 percent (inos passing the No. 200 sieve. These soils shoulrl 6e nenerolly suitabin for use as strucwral (ill durinr� dry weather. Eenh Coruulmme,In:.