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1 1 ' (PLATES VI & VIl . ) and driliing commenced at about .1230 _ After cutting through the asphalt, the auger bit encountered an obstruction at 2 1/2' , and was removed. Farther investigation revealed that the bit had hit the sewer line that went from the shop budding to the street; it' s exact location had not been previously identified, The rig was moved off the spot to allow access to the lane While the sewer line was being repaired, the rag crew grouted soil borings #1 & 03. Upon completion of that activity, the rag crew returned to their base, and the geologist transferred the preserved core samples to FGL Environmental under chain of custody, with instructions to analyze for BTEX, TEPH, EPA 8010 , & ICAP, (5 metals ) That document is included an EXHIBIT M ' On October 28, the geologist arrived on location at 0700 , follow- ed shortly by the rig helper & the property owner The sewer line had been repaired, and the excavation filled in. The rig was spotted over soil boring #4, and drilling began at 0800 Cores were taken at 5' intervals from 5' bg] to 31'6" by the same procedures described earlier. No odors or evidence of contami- nation were noted in any of the core material or drill cuttings Refer to PLATE X1 for details of lithology, blow counts, core recovery, etc The rig was then located about 3' west of the spat previously chosen for SB 02 to avoid rupturing the sewer lane again. Drilling began at about 0925; the f3 rst 2--3 feet consisted of black, sticky adobe clay, which graded to tan to brown dry clay Cores were taken at 5' intervals starting at 5'bgl, within the interval 16' bgl to 25' bgl , the cores and drill cuttings appeared to contain a large percentage of backfill material . Below 25' , the lithology changed back to indigenous clays, no odors or evidence of contamination was noted to this point. I When the core barrel was retreived from 31 ' 6" , a weak petroleum odor was noticed on the core head. When the core barrel was opened, it contained 15 of tan to brown to gray mottled dry clay There was no evidence of staining, and only the bottom few ' inches of the core had a faint petroleum odor. Although this was the programmed depth of the boxing, the geologist felt that another core should be taken. Upon consultation with Mr Steve ' Sasson, WIS, from the County FHB, it was agreed to advance the holc another 5 feet and take a core. From 31 ' 6 to 35' , the drill cuttings had a definite petroleum odor, ( ' old gasoline ) A core was taken from 35' to 36 ' 6" ; recovery was 15 ' of tan to brown to gray mottled clay No visible evidence of staining or discoloration was noted, but there was a definite odor of 'old' gasoline The sample at 36' was sealed, labeled, and preserved 6