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FRIEDMAN & BRUYA, INC. <br /> ' ENVIRONMENTAL CHEMISTS <br /> Date of Report: 11/18/98 <br /> Date Received: 10/24/98 <br /> Project: C3499.01 <br /> QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES <br /> FOR PNA'S BY EPA METHOD 8270C SIM <br /> Laboratory Code: 810104-01 (Duplicate) <br /> Reporting Sample Duplicate Acceptance <br /> Analyte Units Result Result RPD Criteria <br /> Napthalene µg/kg (ppb) <5 <5 nm 0-20 <br /> Acenapthylene µg/kg (ppb) <5 <5 nm 0-20 <br /> Acenapthene n/kg (ppb) <5 <5 nm 0.20 <br /> Fluorene gg/kg (ppb) <5 <5 nm 0-20 <br /> Phenanthrene µg/kg (ppb) <5 <5 nm 0-20 <br /> Anthracene µg/kg (ppb) <5 <5 nm 0-20 <br /> Fluoranthene µg/kg (ppb) <5 <5 nm 0-20 <br /> Pyrene µg/kg (ppb) <5 <5 nm 0-20 <br /> Benzo(a)anthracene µg/kg (ppb) <5 <5 nm 0-20 <br /> Chrysene µg/kg (ppb) <5 <5 nm 0-20 <br /> Benzo(b)fluoranthene µg/kg (ppb) <5 <5 nm 0-20 <br /> Benzo(k)fluoranthene µg/kg(ppb) <5 <5 nm 0-20 <br /> Benzo(a)pyrene jig/kg (ppb) <5 <5 nm 0-20 <br /> lndeno(1,2,3-cd)pyrene µg/kg(ppb) <5 <5 nm 0-20 <br /> Dibenz(a,h)anthracene µg/kg (ppb) <5 <5 nm 0-20 <br /> Benzo(g,hJ)perylene pg/kg (ppb) <5 <5 nm 0-20 <br /> Laboratory Code: 810104-01 (Matrix Spike) <br /> Reporting Spike Sample %Recovery %Recovery Acceptance <br /> Analyte Units Level Result MS MSD Criteria RPD <br /> Napthalene µg/kg(ppb) 170 <5 83 84 54-110 1 <br /> Acenapthylene µg/kg(ppb) 170 <5 75 75 58-114 0 <br /> Acenapthene µg/kg (ppb) 170 <5 75 74 58-112 0 <br /> Fluorene µg/kg (ppb) 170 <5 80 79 59-113 2 <br /> Phenanthrene n/kg (ppb) 170 <5 79 78 62-110 0 <br /> Anthracene µg/kg (ppb) 170 <5 75 72 61-111 4 <br /> Fluoranthene µg/kg (ppb) 170 <5 80 79 63-114 2 <br /> Pyrene jig/kg (ppb) 170 <5 77 76 59-110 1 <br /> Benzo(a)anthracene Rg/kg (ppb) 170 <5 78 75' 60-116 4 <br /> Chrysene }µg/kg (ppb) 170 <5 69 68 57-118 1 <br /> Benzo(b)fluoranthene 'tg/kg (ppb) 170 <5 98 96 52-133 3 <br /> Benzo(k)fluoranthene pg/kg (ppb) 170 <5 86 87 57-130 2 <br /> Benzo(a)pyrene µg/kg (ppb) 170 <5 87 78 52-132 12 <br /> lndeno(1,2,3-cd)pyrene µg/kg (ppb) 170 <5 92 93 54-112 1 <br /> Dibenz(a,h)anthracene µg/kg (ppb) 170 <5 94 94 50-121 0 <br /> Benzo(g,hJ)perylene µg/kg (ppb) 170 <5 91 90 40-114 0 <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 />