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FRIEDMAN & BRUYA INC. <br /> _ENVIRONMENTAL CHEMISTS <br /> Date of Report: 12/02/99 <br /> Date Received: 11/12/99 <br /> Project: 5380.001 <br /> ' QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES <br /> FOR PNA'S BY EPA METHOD 8270C SIM <br /> Laboratory Code- Laboratory Control Sample <br /> Reporting Spike %Recovery % Recovery Acceptance <br /> Anal to Units Level LCS LCSD Criteria RPD <br /> Napthalene µg/kg (ppb) 170 88 92 51-124 5 <br /> Acenapthylene µg/kg (ppb) 170 77 80 52-125 3 <br /> Acenapthene µg/kg (ppb) 170 85 89 57-122 5 <br /> Fluorene µg/kg (ppb) 170 82 86 55-126 4 <br /> Phenanthrene µg/kg (ppb) 170 82 86 59-126 5 <br /> Anthracene µg/kg (ppb) 170 74 78 45-134 6 <br /> li luoranthene µg/kg (ppb) 170 85 90 56-132 5 <br /> Pyrene µg/kg (ppb) 170 89 91 54-125 3 <br /> Benz(a)anthracene µg/kg (ppb) 170 79 84 51-130 5 <br /> ' Chrysene µg/kg (ppb) 170 82 87 57-125 6 <br /> Benzo(b)fluoranthene µg/kg (ppb) 170 113 115 54-135 2 <br /> Benzo(k)fluoranthene µg/kg (ppb) 170 101 106 52-141 4 <br /> Benzo(a)pyrene µg/kg (ppb) 170 82 88 38-140 7 <br /> Indeno(1,2,3-ed)pyrene µg/kg (ppb) 170 105 112 58-122 6 <br /> Dibenzo(a,h)anthracene µg/kg (ppb) 170 108 115 58-130 7 <br /> ' Benzo(g,h,i)perylene µg/kg (ppb) 170 110 116 54-124 5 <br /> nm - The analyte was not detected in one or more of the duplicate analyses. Therefore, calculation of <br /> the RPD is not applicable. <br /> i <br /> 1 . <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 24 <br />