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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 SOIL SAMPLES <br /> FOR PNA'S BY EPA METHOD 8270 SIM <br /> ' Laboratory Code: Laboratory Control Sample <br /> Reporting Spike %Recovery Acceptance <br /> ' Analyte Units Level LCS Criteria <br /> Napthalene µg/kg (ppb) 170 85 70.120 <br /> Acenapthylene µg/kg (ppb) 170 93 70.120 <br /> ' Acenapthene µg/kg (ppb) 170 90 70-120 <br /> Fluorene µg/kg (ppb) 170 89 70-120 <br /> Phenanthrene µg/kg (ppb) 170 88 70-120 <br /> ' Anthracene µg/kg (ppb) 170 82 70-120 <br /> Fluoranthene n/kg (ppb) 170 84 70-120 <br /> Pyrene 4g/kg (ppb) 170 82 70-120 <br /> Benzo(a)anthracene 4g/kg (ppb) 170 84 70-120 <br /> ' Chrysene µg/kg(ppb) 170 84 70-120 <br /> Benzo(b)fluoranthene µg/kg(ppb) 170 98 70.120 <br /> Benzo(k)fluoranthene µg/kg(ppb) 170 110 70.120 <br /> ' Benzo(a)pyrene µg/kg (ppb) 170 83 70-120 <br /> Indeno(1,2,3-cd)pyrene µg/kg(ppb) 170 75 70-120 <br /> Dibenz(a,h)anthracene µg/kg(ppb) 170 72 70-120 <br /> ' Benzo(g,h,i)perylene n/kg(ppb) 170 77 70.120 <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 /> 1 <br /> 1 <br /> 1 <br />