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r� <br /> excavation soil stockpile. Analytical results are summarized in <br /> Table 1 and the laboratory data sheers and chain-o£-custody <br /> documentation are attached as Appendix A. <br /> 3.0 SOIL REMEDIATION AND SOIL BORING ACTIVITIES <br /> Since Uriah's TP-1 excavation floor soil sample (EC-15) , taken at <br /> 25 feet below grade, detected both TPHG and BTEX constituents, <br /> TPE was contracted to drill and sample I exploratory soil boring to <br /> 50 feet. The purpose of this boring was to determine <br /> a depth of <br /> amination beneath the TP-1 <br /> the vertical extent of hydrocarbon cont <br /> excavation. <br /> Because the TP-2 114000 North" verfic them vadose zonen soil lsadetectted <br /> petroleum hydrocarbon constituents in <br /> conducted further remedial ove�P£cwastion cantracted(designated <br /> oP���tPdlthe <br /> S,YCLHD) around the tank pit les: <br /> overexcavation verification soil same <br /> Following the Phase II overexcavation, to help define the vertical <br /> arket <br /> extent of soil contamination beneath the m <br /> drill an angle <br /> (associated <br /> with TP-2 tank leakage) , TPE was contracted to dr <br /> boring to a -ertical depth of 40 feet beneath the southwestern <br /> corner of the structure. <br /> On June 15, 1992 TPE collected and submitted for chemical analyze <br /> ' stockpile soil samples front the TP-1 and TP-2 excavations. <br /> TPE conducted the following tasks while performing the above scope <br /> of work: <br /> Conducted a subsurface utility survey to minimize the <br /> ring underground utili.f:.es and to <br /> potential of encounte <br /> assist in selecting locations for the 2 exploratory <br /> borings. <br /> collected verification soil samples for chemical analyses <br /> • after remedial overexcavation of contaminated soil from <br /> the tank pit. <br /> 3 <br />