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Page 5 ea{p u.1Tath-5Inc Site haratca,t c Motors) rl staff valentine 1 323 2Motars) effort) gr03ey v (day of the drilling ling efforts Mx Novns�bev3fl,2Doi on that day same completc the well installation and abando i gdrilling was extre dee 5 5 hours) to free drill from beveen hole was fin15hed later that nig erentiating lamed that this would 1 ecessrtate free dri in exp until 8 00 P M 1n diff 155 feet bgs Wong agreed ands om 7 30 P � The driller had difficulty h the 128 slow and it took feet) thraug ected that the 155 feet bgs (27 (silts based on resistance I"ud, it is cusp er depths bgs to through sand versus clay resent in shallow October drilling aced on an exarniriation of the reeircuntervals as p interval B sand and silticlay fined alternating grouting did not occur until the fallowing ay 8 interval contained lacei�ient and gro while drilling at the l0 The actual well p apparent 25, 2001 and gasoline odor were not app 127 feet Hydrocarbon ntervg apparent �thtle drilling at the 122 117 feet bgs a ed gasoal line) ware • Hydrocarbon odors g bgs interval ore information See Appendix B, Boring Logs for iXi ��Np,p,,TI4NS USIONS AND RECO this subsurface I 4.0 COfiICL collected over the course of of the data ns These conclusionstat ve of actual the aux interpretation several conclusions are representative Based on although incomplete, which would upon iti investigation, GTI Haver considered, e that the data we e that there may be u ilius our concluaons s, premise e acknowledg retatton and the state and conditions W change Our iriterp on their consideration, our knowledge of site conditions, and Our Ire are based atrve technology limitations of subsurface investigative this investigation 4.1 Conclusions attons and the d roundwatet iiivestig ri into consideration the data obtained from Weal l ech lies II-,c , talo g Tevious sod an g conclusions Geolog data compiled during p makes the fallowing th of and from the asiitaring events, re alar groundwater m round ,ater plume has reachedobtairp►ed at g that the sand same nize the possibility bottom It is noted that shallower The inveStigatiori reveal rec0 sA11 an ,from the es that contained minor l T Howevc , bor 127 feet bgs have flowed into the pear of native soil sampl ration this depth ,lay 117 feet bgs appear to be inig samples at 111 and ear to be inhibiting contamination also prirriarily clayey,but this does not app The site geology plumes roundwater plumes are not defined iii any 2 T groundwater of the soil ai 3 At this time the lateral extent of the soil an direction endatlons the conclusions 4,2 gcC°nim recommendations based on Geologieal Technics Inc makes the follownlg 1 outlined above