1401 MERRILL CREEK PKY #9 2016-01-01 MF Import

FF Dccclopmcnt LP Octobcr 26.2011G Pagc 2 FILL MATERIAL EVALUATION AND REQUIRED COMPACTION On-silc soils ��crc uscd as fill and backfill at thc sitc. Wc cvaluatcd fill plxcmcnt xticilics ��ilhin thc Pod 2 arca �chcrc Building Nos. 8, ) and I I arc localcd during thc mass gr�ding period on 10 occasions bch�c:.n Jul�� 6, and Jul�� 27, 2005 (rcfcr to ficld report Nos. IS through 25). Wc nlso complctcd S intcmiiticnt sitc �isits bchvccn July 21, 20115 and Scp�cmbcr 2R, 2006 (rcicr to ficld report Nos. 2G — 31. 35 a�id 73)to cvaluatc compaction of thc fill placcd within �hc Pod 2 aroa. Wc c��aluatcd thc fill soil by perfortning laboratory tcsting that gcncrally wnsistcd of maximum dry dcnsih� (MDD) c��alualions per Amcrican Socicty for Tcsling and Malcrials (ASTM) D1557 tcsting proccdnrc. Thc (ill uscd �cithin thc building footprint arca, gcncrally consistcd of thc on-sitc glacial till and advancc ouhvasB soils. Wc cvaluated �hc compaclior of fill by obscrving placcmcnt proccdures, by perfomiing in-placc dcnsit}• tcsts and by probing with a 'h-inch diamctcr probc rod. Pill was gencrally compactcd to at i:ast 95 perocnt of�hc MDD in arcas bcncath Duilding Nos. 8,9 and 1 I during thc mass grading period. Bascd on our obscrvations and c�aluations, il is our opinion thal thc fill placcd �cithin thc fa,•tprint of Building Nos. S,'I mid I 1 during thc mass grading period �ccrc compactcd in gcncral acwrdancc��'ith our rr,commcndations and !hc projcct plmu and spccifications. SOIL BEARING VERIFICATION Buflding Nos. 8, 9 and!1 Wc cvaluatcd thc footing and slab subgradc soils at Duilding Nos. 8,9 and I 1 and �crificd soil bcaring on G occasions bchrccn Oclobcr 25 a�id Dcccmbcr I, 2005 (rcfcr to ficld report Nos. Sa, RG, 87,99, 1011, and 103). f3ascd on our obscn�ations, it is our opinion that soil bcaring pressurc of 2.5011 psf��as achicvcd in thc fooling subgrodc of Duilding Nos. 8,7 and I I and thc slab subgradc��as prcpazcd in gcncral aceordancc ��ith our rccommcndations and thc projcct plans and spccifications. Buildfng No. 7 Wc did not cvaluatc tl�c fooling and slab subgradc soils at Building No. 7. Duilding No. 7 is localcd cast of thc ccntral dcicmion pond and cuts��cro madc to achicvc thc dcsign building grada Wc complctcd S hand augcr holcs around Uic footprint of Duilding No. 7 on Octobcr I�I, 200G (uc auxhcd ficld report No. Id7) and cncountcrod nativc dcnsc soils at dcpths ranging Gom 0.2 to 13 fcct. Our hand holc csploralions arowid thc building suggcstcd Ihat thc fooling is likcly lo bc founded on Ihc dcnsc naticc soils. Wc did not obscrvc thc slab subgradc soils for Building No. 7 but it is our undcrslanding lliat slab subgradc soils�ccrc properly coropacicd using thc similar proccdurc uscd far olhcr buildings at thc sitc. E3ascd on our obscnalions, it is our opiuion th�1 soil bcaring pressurc of 2,500 psf was achicvcd in thc I'ooting subgrodc of Building No. 7. 2�3 l�il..Cc. '6?0.!/04.(/3 GEOENGINEERS�