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FRIEDMAN &BRUYA, INC. <br /> ENVIRONMENTAL CHEMISTS <br /> Date of Report: 09/29/99 <br /> Date Received: 09/27/99 <br /> Project: 5650 <br /> QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF WATER <br /> SAMPLES FOR PNA'S BY EPA METHOD 8270C SIM <br /> Laboratory Code: Laboratory Control Sample <br /> Reporting Spike %Recovery %Recovery Acceptance <br /> Analyte Units Level LCS LCSD Criteria RPD <br /> Naptbalene µg/L(ppb) 5 97 98 56.126 2 <br /> Acenapthylene µg/L(ppb) 5 99 99 61-128 0 <br /> Acenapthene µg/l,(ppb) 5 96 95 63.124 1 <br /> Fluorene µg2(ppb) 5 97 96 64-130 1 <br /> Phenanthrene pg/L(ppb) 5 95 94 69-124 1 <br /> Anthracene pg/l,(ppb) 5 97 96 68-122 1 <br /> Fluoranthene pg/l. (ppb) 5 96 97 73-129 0 <br /> Pyrene pg/L (ppb) 5 98 98 68-125 0 <br /> Benz(a)anthracene pg/L(ppb) 5 94 94 69-122 0 <br /> Chrysene µg/I.(ppb) 5 95 95 68-122 0 <br /> Benzo(b)fluoranthene µg/L(ppb) 5 94 94 67-132 0 <br /> Benzo(k)fluoranthene µg/L(ppb) 5 94 95 68-132 1 <br /> Benzo(a)pyrene µg/l,(ppb) 5 88 89 71-132 1 <br /> Indeno(1,2,3-cd)pyrene µg/l,(ppb) 5 87 87 58-130 0 <br /> Dibenzo(a,h)anthracene µg/L(ppb) 5 96 97 59.137 1 <br /> Benzo(g,h,i)perylene µg/l,(ppb) 5 87 89 58.130 2 <br /> 33 <br />