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Alpha Scientific Corporation <br />Environmental Laboratories <br />2716760 Gridley Road, Cerritos, CA 90703 Phone (562) 809-8880 Asc90703@gmail.com <br />03-25-2019 <br />EPA 8260B <br />Batch QA/QC Report <br />Client: Advanced GeoEnvironmental, Inc Lab Job No: AE903029 <br />Project: San Joaquin Cogeneration <br />Matrix: Water Lab Sample I.D.: AE903029-15 <br />Batch No: 0315-VOAW1 Date Analyzed: 03-15-2019 <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 22.3 20.8 111.5 104.0 7.0 30 70-130 <br />Benzene ND 20 23.8 24.3 119.0 121.5 2.1 30 70-130 <br />Trichloro- <br />ethene <br />ND 20 22.2 21.5 111.0 107.5 3.2 30 70-130 <br />Toluene ND 20 23.8 22.9 119.0 114.5 3.9 30 70-130 <br />Chlorobenzene ND 20 24.3 23.9 121.5 119.5 1.7 30 70-130 <br />II. LCS Result <br />Unit: ppb <br />Analyte LCS Value True Value Rec.% Accept. Limit <br />1,1-Dichloroethene 21.1 20.0 90.0 80-120 <br />Benzene 23.8 20.0 101.0 80-120 <br />Trichloro-ethene 21.8 20.0 106.5 80-120 <br />Toluene 23.5 20.0 99.5 80-120 <br />Chlorobenzene 23.4 20.0 105.0 80-120 <br />ND: Not Detected.