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FRIEDMAN & BRUYA, INC. <br /> ENVIRONMENTAL CHEMISTS <br /> yDate of Report: 12/13/02 <br /> Date Received: 11/27/02 <br /> ' Project: 2463.002 <br /> QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF WATER <br /> SAMPLES FOR PNA'S BY EPA METHOD 8270C SIM <br /> Laboratory Code: 211186-09 (Matrix Spike) <br /> Percent Percent Relative Percent <br /> Reporting Spike Recovery Recovery Acceptance Difference <br /> Analyte Units Level MS MSD Criteria (Limit 20) <br /> Naphthalene n/L (ppb) 5 85 84 50-150 1 <br /> Acenaphthylene µg/L (ppb) 5 98 98 50.150 0 <br /> Acenaphthene gg/L(ppb) 5 88 89 50-150 1 <br /> Fluorene µg/L(ppb) 5 90 91 50.150 1 <br /> Phenanthrene n/L(ppb) 5 84 86 50.150 2 <br /> Anthracene µg/L(ppb) 5 106 110 50.150 4 <br /> Fluoranthene n/L(ppb) 5 99 101 50-150 2 <br /> Pyrene n/L(ppb) 5 97 99 50-150 2 <br /> ' Benzo(a)anthracene µg/L (ppb) 5 82 83 50-150 1 <br /> Chrysene n/L (ppb) 5 83 84 50-150 1 <br /> Benzo(b)fluoranthene µg/L (ppb) 5 91 94 50-150 3 <br /> Benzo(k)fluoranthene µg/L (ppb) 5 90 92 50-150 2 <br /> Benzo(a)pyrene µg/L (ppb) 5 97 99 50-150 2 <br /> Indeno(1,2,3-cd)pyrene gg/L (ppb) 5 79 81 50.150 2 <br /> Dibenz(a,h)anthracene µg/L (ppb) 5 78 81 50.150 4 <br /> Benzo(g,h,i)perylene µg/L (ppb) 5 75 77 50.150 2 <br /> ' Laboratory Code: Laboratory Control Sample <br /> Percent Percent Relative Percent <br /> Reporting Spike Recovery Recovery Acceptance Difference <br /> Analyte Units Level LCS LCSD Criteria (Limit 20) <br /> Naphthalene µg/L (ppb) 5 87 94 56.126 8 <br /> Acenaphthylene n/L (ppb) 5 97 107 61.128 9 <br /> ' Acenaphthene n/L (ppb) 5 88 95 63-124 7 <br /> Fluorene µg/L (ppb) 5 89 96 64.130 8 <br /> Phenanthrene gg/L (ppb) 5 84 89 69-124 6 <br /> Anthracene µg/L (ppb) 5 103 112 68.122 8 <br /> Fluoranthene M/L(ppb) 5 97 107 73-129 10 <br /> Pyrene m/L (ppb) 5 95 105 68.125 11 <br /> Benzo(a)anthracene n/L (ppb) 5 83 88 69.122 6 <br /> ' Chrysene µg/L(ppb) 5 82 88 68.122 7 <br /> Benzo(b)fluoranthene µg/L(ppb) 5 92 98 67.132 7 <br /> Benzo(k)fluoranthene n/L (ppb) 5 88 95 68.132 8 <br /> Benzo(a)pyrene n/L (ppb) 5 95 104 71-132 8 <br /> Indeno(1,2,3-cd)pyrene pg/L (ppb) 5 81 85 58.130 5 <br /> Dibenz(a,h)anthracene µg/L (ppb) 5 80 83 59.137 4 <br /> Benzo(g,h,i)perylene µg/L (ppb) 5 76 80 58.130 5 <br /> ' r;a _ s <br /> 19 <br />