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I <br /> PLATE XV as a fence diagram through the six soil borings showing <br /> the lathology encountered during the work It shows that there <br /> are no sandy intervals above 35' in any of the soil borings, and <br /> the highest levels of TPH-D were measured in the spoil that, had <br /> returned to the hole. <br /> RESULTS ()F L.ARORA MMM ANALY'LES OF_ aQI L XAMYLES <br /> The results of the laboratory analyzes, summarized on TABLE I <br /> show that all samples analyzed from soil borings "A" , "B" , C" , <br /> 'D" , "E" , & 'F' were below detection limits for "EX & TPH-G <br /> TPH as diesel in soil samples fr� oil box�ga <br /> w s detected <br /> as follow '380 kg at 430 mg/k , m kg a <br /> 15' 6" , 25 mg/kg of 20' ; ND at 25' ; 4. 0 mg/ at 3 <br /> 41 ' ankmg/kg at 46' & 50 ' 6 o a lead was measured at <br /> 5. 0 mg/k rom the same e at 15' 6" , (with the highest TPH ) <br /> Copies of the laboratory reports and chains of custody are <br /> included as EXHIBIT T <br /> The highest levels of TPH -D measured in soil boring "F" were <br /> above 20 ' bgl, drilling spoils and cores indicate that returned <br /> Spoils & fill Material extended to at least 20' bgl and possibly <br /> deeper_ Only three {3) coreos taken_below 20 ' revealed any .TPH D, <br /> and those were at very l]�ow cncentrations. The h-gher 'levels <br /> of TPH-D above 20 ' as to be expected, since the removed spoil, <br /> whish dad reveal some contamination, was returned to the site of <br /> the removed UST' s_ <br /> Although every effort was made to thorough)y clean all equipment <br /> between coring intervals, it is likely that the manor amounts of <br /> TPH-D fou ..._are_the resull. <br /> t e coring a ua ment There was no contamination found in theQ ? <br /> camP <br /> es a�, 36' & 41, and no odors noted below 32' In any event, <br /> the very low levels found should not present any threat to the <br /> groundwater beneath this site. <br /> CONCLUSIQNS <br /> Based upon the results & analysis of all of the work done to date <br /> on this site, the following observations and conclusions can be <br /> made_ <br /> 1 ) BTEX & TPH as gasoline were not detected in any of the 6 Moat <br /> borings . <br /> 2) TPH as diesel appears to be restricted to the spoil & fill <br /> material that was returned to the hole after the work performed <br /> in 1991 - <br /> 3 ) <br /> 991 .3 ) There has been little if any movement of the contamination <br /> 10 <br />