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57"6" ; recovery was 24" of coarse sand & gravel, tan to gray, <br /> clean, damp but not wet; it graded to clayey sand. There was no <br /> evidence of contamination, and no reading on the PID meter from a <br /> Portion of the core; the tube at 57' was preserved per standard <br /> field protocol. <br /> The next core was taken from 60' to 62' 6" ; recovery was 27" . The <br /> top 12" was sandy clay, grading to clayey sand, very fine to <br /> medium grained, fairly soft, damp but not wet. Again, there were <br /> no odors or visible staining, and no reading was noted on the PID <br /> meter from a portion of the bottom of the core. The middle tube <br /> was sealed and preserved_ <br /> Drilling continued to 651 , and a core was taken from 65' to <br /> 67' f_. . Recovery was 18" of coarse sand & gravel, damp but not <br /> wet, interbedded with clays; grading to sandy clay. The end of <br /> the core head contained a 1/4" layer of sticky blue clay_ No <br /> evidence of contamination was noted, and the PID meter read zero <br /> from a portion of the core at 66' . The middle tube was preserved <br /> as described earlier. <br /> Drilling continued to 701 , and a core was taken from0� 1 to <br /> • '72' 6" . When the core barrel was retrieved, the outside was wet, <br /> indicating that water may have been encountered_ When the barrel <br /> was opened, it contained 27" of fine to medium grained micaceous <br /> sand, dark gray, loose & wet; it was interbedded with tan to <br /> brown clays. A sample at 72' gave a reading of zero on the PID <br /> meter. The middle tube: was sealed, labeled and preserved per <br /> standard field protocol. <br /> Drilling ceased at this point, since it appeared that the water <br /> table had been reached. A thoroughly decontaminated hydropunch <br /> tool, was made up on hollow rods and run inside the auger flights <br /> to bottom at 72' 6" . The tool was driven to 75' bgl with the <br /> drive hammer - blow counts were 95-60-80. The hollow tubing was <br /> then pulled up about 6" to open the tool; it was left open about <br /> 45 minutes to allow a sufficient sample to be taken. The sample <br /> chamber was then closed, and the tool retrieved. Four (4) clean <br /> glass VOA' s were preserved with a small amount of ACG, and filled <br /> by pouring the contents of the sample chamber, (approximately 1 <br /> liter of slightly muddy water, ) directly into the vials. The <br /> VOA' s were checked to make sure there were no bubbles, tightly <br /> sealed, labeled, and placed on ice pending transport to the lab. <br /> The auger hole was grouted from bottom to 4' below surface with <br /> cement which was mixed in hopper and pumped through a flexible <br /> hose lowered into the hole. <br /> i <br /> 6 <br />