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r <br /> v - - <br /> SECTION 2 <br /> sOjL AND GROUND AINVESTIGT'E <br /> This section describes the soil and groundwater investigation which <br /> was performed in November 199lesFive <br /> weresoil <br /> cole ted from fouorings were r of thed e <br /> into HydroPunch groundwater samp <br /> borings. Two of the borings were later coning ells(MW-1,MW-2, <br /> monitoring wells. Three existing monitoring groundwater <br /> and Mw-3) were abandoned. Details and soil and <br /> sampling results are described below. <br /> Soil Boring and SaMPW <br /> Five soil borings were drilled during this investigation (Figure 2-1). <br /> Two borings (B-17 and B-20) were drilled on Safeway property. Three <br /> additional borings (B-18, B-19, and B-21) were drilled aousobi a Navy truck- <br /> fhe borings were employing to hollow groundwater <br /> s. Soil samples were <br /> mounted drill rig employe g <br /> collected from the 25.5- to 2F.0-foot interval from borings B-17, B-18, <br /> and B-19 as well as from the 30.0- to 30.o-foot lIttG:'al in borings B-19 <br /> r <br /> and B-21. No soil samples were collected from boring B-20 because of <br /> its close proaumity to boring B-17. <br /> The soil samples ed withlbrass tube ed I ners.l1fornia m <br /> All brassline s weified re <br /> spoon sampler fitted bits, and split-spoon <br /> steam cleaned prior to use. All augers, drilling activities. <br /> samplers were steam cleaned prior to insertinglng the sampler into the <br /> Each soil sample was collected by <br /> augers and advancing itVinto <br /> tofthe the augers,the eand <br /> sampler was thcontaining <br /> the cessary h atss liner <br /> en the soil <br /> containing the sample was removed. The tube with pia gc caps to <br /> sample was covered with Teflon tape and Capp <br /> make airtight seals. The brass tube was then labeled <br /> hilt als, date,bt me, <br /> number, sample interval depth, sampler's was logged on a chain- <br /> location, and analysis required. Each sample <br /> of-custody form and in a field book. (See completed Chain-of-Custody <br /> - - --- -- - foam in Appendix B.) Each sample was then relinquished to an on- <br /> site mobile laboratory or d form for immed alivered-to the te extraction alongoratory withthe_ <br /> -- <br /> completed chain-of-custody <br /> 2.1 <br /> gt <br />