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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: 807048.04 (Duplicate) <br /> Reporting Sample Duplicate Acceptance <br /> Analyte Units Result Result RPD Criteria <br /> ' Napthalene µg/kg(ppb) <250 <250 nm 0.20 <br /> Acenapthylene gg/kg(ppb) <250 <250 not 0-20 <br /> Acenapthene gg/kg (ppb) 630 650 3 0.20 <br /> ' Fluorene µg/kg(ppb) 1,400 1,600 13 0.20 <br /> Phenanthrene gg/kg (ppb) 2,800 3,000 7 0-20 <br /> Anthracene µg/kg (ppb) <250 <250 nm 0-20 <br /> ' Fluoranthene µg/kg(ppb) <250 <250 nm 0-20 <br /> Pyrene µg/kg(ppb) <250 <250 nm 0-20 <br /> Benzo(a)anthracene µg/kg(ppb) <250 <250 nm 0.20 <br /> Chrysene µg/kg(ppb) 330 370 11 0.20 <br /> Benzo(b)fluoranthene µg/kg(ppb) <250 <250 nm 0.20 <br /> Benzo(k)fluoranthene µg/kg (ppb) <250 <250 nm 0.20 <br /> Benzo(a)pyrene n/kg (ppb) <250 <250 nm 0-20 <br /> ' Indeno(1,2,3-cd)pyrene µg/kg (ppb) <250 <250 nm 0.20 <br /> Dibenz(a,h)anthracene n/kg (ppb) <250 <250 nm 0.20 <br /> Benzo(g,h,i)perylene µg/kg(ppb) <250 <250 nm 0-20 <br /> ' Laboratory Code: 807048-05 (Matrix Spike) <br /> Reporting Spike Sample %Recovery %Recovery Acceptance <br /> ' Analyte Units Level Result MS MSD Criteria RPD <br /> Napthalene gg/kg (ppb) 170 <5 87 90 70-120 3 <br /> Acenapthylene µg/kg (ppb) 170 <5 98 99 70-120 1 <br /> ' Acenapthene µg/kg (ppb) 170 <5 95 99 70-120 3 <br /> Fluorene µg/kg(ppb) 170 <5 98 99 70-120 1 <br /> Phenanthrene µg/kg (ppb) 170 <5 94 94 70-120 0 <br /> ' Anthracene gg/kg (ppb) 170 <5 89 91 70-120 2 <br /> Fluoranthene gg/kg (ppb) 170 <5 88 91 70-120 3 <br /> Pyrene µg/kg (ppb) 170 <5 86 89 70-120 4 <br /> Benzo(a)anthracene n/kg (ppb) 170 <5 88 90 70.120 2 <br /> ' Chrysene µg/kg (ppb) 170 <5 87 91 70.120 5 <br /> Benzo(b)fluoranthene µg/kg(ppb) 170 <5 109 112 70.120 2 <br /> Benzo(k)fluoranthene n/kg (ppb) 170 <5 119 120 70-120 1 <br /> Benzo(a)pyrene gg/kg (ppb) 170 <5 94 95 70.120 1 <br /> Indeno(1,2,3-cd)pyrene n/kg (ppb) 170 <5 77 70 70.120 9 <br /> Dibenz(a,h)anthracene n/kg (ppb) 170 <5 72 71 70-120 2 <br /> ' Benzo(g,h,i)perylene gg/kg (ppb) 170 <5 77 71 70-120 9 <br /> 1 <br />