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Alpha Scientific Corporation <br />Environmental Laboratories <br />16760 Gridley Road, Cerritos, CA 90703 Phone (562) 809-8880 Asc90703@gmail.com20 <br />09-21-2015 <br />EPA Method 8260B <br />Batch QA/QC Report <br />Client: Advanced GeoEnvironmental, Inc.Lab Job No.: AE509053 <br />Project: PNA SWIS <br />Matrix: Soil Lab Sample I.D.: AI509057-5 <br />Batch No: 0914-VOBS1 Date Analyzed: 09-15-2015 <br />I. MS/MSD Report <br />Unit: ppb <br />Analyte Sample <br />Conc. <br />Spike <br />Conc. <br />MS MSD MS <br />%Rec. <br />MSD <br />%Rec. <br />% RPD %RPD <br />Accept. <br />Limit <br />%Rec <br />Accept. <br />Limit <br />1,1- <br />Dichloroethene <br />ND 20 16.5 18.3 82.5 91.5 10.3 30 70-130 <br />Benzene ND 20 24.4 24.1 122.0 120.5 1.2 30 70-130 <br />Trichloro- <br />ethene <br />ND 20 23.3 23.9 116.5 119.5 2.5 30 70-130 <br />Toluene ND 20 24.3 24.9 121.5 124.5 2.4 30 70-130 <br />Chlorobenzene ND 20 24.7 25.7 123.5 128.5 4.0 30 70-130 <br />II. LCS Result <br />Unit: ppb <br />Analyte LCS Value True Value Rec.% Accept. Limit <br />1,1-Dichloroethene 16.8 20.0 84.0 80-120 <br />Benzene 20.8 20.0 104.0 80-120 <br />Trichloro-ethene 21.1 20.0 105.5 80-120 <br />Toluene 21.9 20.0 109.5 80-120 <br />Chlorobenzene 24.0 20.0 120.0 80-120 <br />ND: Not Detected (at the specified limit).