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FRIEDMAN & BRUYA, INC. <br /> ' ENVIRONMENTAL CHEMISTS <br /> Date of Report: 07/24/98 <br /> ' Date Received: 07/10/98 <br /> Project: 4780 <br /> ' QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF WATER <br /> SAMPLES FOR PNXS BY EPA METHOD 8270 SIM <br /> ' Laboratory Code: Laboratory Control Sample <br /> Reporting Spike % Recovery %Recovery Acceptance <br /> Analyte Units Level LCS LCSD Criteria RPD <br /> ' Napthalene n/L(ppb) 5 71 71 70.120 0 <br /> Acenapthylene n/L(ppb) 5 70 78 70.120 11 <br /> Acenapthene µg/L(ppb) 5 70 78 70-120 11 <br /> ' Fluorene n/L(ppb) 5 71 79 70-120 10 <br /> Phenanthrene µg/L(ppb) 5 72 86 70.120 18 <br /> Anthracene µg/L(ppb) 5 75 88 70-120 16 <br /> ' Fluoranthene n/L(ppb) 5 75 90 70-120 18 <br /> Pyrene n/L(ppb) 5 72 88 70-120 20 <br /> Benzo(a)anthracene n/L(ppb) 5 74 85 70.120 14 <br /> Chrysene µg/L(ppb) 5 71 84 70.120 17 <br /> Benzo(b)fluoranthene µg/L(ppb) 5 82 96 70.120 16 <br /> Benzo(k)fluoranthene µg/L(ppb) 5 72 87 70-120 20 <br /> Benzo(a)pyrene µg/L(ppb) 5 76 88 70-120 15 <br /> ' Indeno(1,2,3-cd)pyrene µg/l,(ppb) 5 74 82 70-120 10 <br /> Dibenz(a,h)anthracene µg/L(ppb) 5 73 82 70-120 11 <br /> Benzo(g,h,i)perylene n/L (ppb) 5 77 79 70.120 2 <br /> 1 <br />