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r, DETAILS OF LATEST WO PERFORMED ON SEPTEMBER 30 1994: 1 William Hunter, RG, from WJH, arrived on location at 0830, & discussed the location of the soil boring with Stephen Valentine, owner of the property. Spectrum Exploration arrived at 0845 & mobilized a small auger rig with short mast. It was equipped 'With 5' lengths of 8 1/4" OD hollow-stem augers equipped to hold ' a standard 30" split-spoon core barrel designed to hold 2" diameter metal tubes. The driller was R. Duvall, assisted by a Spectrum employee. After reviewing the workplan & going over safety procedures, operations began at 0915. After cutting i through asphalt, the augers were advanced to 12' bgl; sediments consisted of sandy fill material, with some gravels up to 1" diameter. At about 13' , black plastic was recovered, and the flights dropped about 1 to 1 1/2' , indicating a void existed below the plastic which had been placed in the hole after removal of the waste oil tank. After recovering drill rods which had been lost in the hole when the void was encountered, a thoroughly ' decontaminated core barrel was assembled & filled with clean metal tubes supplied by the geologist in charge. The first core was taken from 151 -16' 6" by driving the core assembly below the augers with a drive hammer. The barrel was retrieved, laid on a clean surface, and carefully opened by the ' geologist. Recovery consisted of 15" of very fine to fine- grained silty sand, tan to brown, & slightly moist. No odor or evidence of contamination was noted_ Refer tandLa E V111 for pertinent, ' details of blow counts, recovery, lithology, details. After briefly describing the core, the ends of the middle tube were quickly covered with teflon tape and plastic end Gaps, and thoroughly sealed with duct tape. The sample was labeled & placed on ice in a sealed chest for storage. The remaining core material was placed in the metal drums used to store the drill cuttings. After each use, the core barrel and head' were e�h5uoughleWJHa andwith setTSP asi .detap untilwater, nextfilled use•wa.th metal tub supplied by The next core was taken from 20' -21 ' 6" using a clean core barrel ' & tubes_ Recovery was 15" of sandy clay loam, dark gray to black, soft & loose, with occassional quartz grains up to 1/2" . No odors or evidence of contamination were noted. A portion of the coxed material was sealed and preserved as described above_ Again, refer to PLATE VIII details. The augers were advanced to 25' , and a core was taken from ' 25' -26' Recovery consisted of 15" of soft, loose, brown to gray sand & gravel grading to light brown clay. Core material was slightly damp, but not wet. A slight odor was noted, but it was not characteristic of petroleum. No visible evidence of 5