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Alpha Scientific Corporation <br />Environmental Laboratories <br />716760 Gridley Road, Cerritos, CA 90703 Phone (562) 809-8880 Asc90703@gmail.com <br />04-01-2019 <br />EPA 6010B (Cd, Cu, Pb & Ni) <br />Batch QA/QC Report <br />Client: Advanced GeoEnvironmental, Inc Lab Job No: AE903033/37/43A <br />Project: San Joaquin Cogeneration <br />Matrix: Soil Lab Sample I.D.: A904001-1 <br />Batch No.: 0401-MS1 Date Analyzed: 04-01-2019 <br />I. MS/MSD Report <br />Unit: ppm <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 />Cadmium (Cd) ND 50 53.74 54.48 107.6 109.1 1.4 30 70-130 <br />Copper (Cu) 13.2 50 66.53 66.60 105.3 105.4 0.1 30 70-130 <br />Lead (Pb) 2.7 50 53.17 54.31 101.0 103.1 2.1 30 70-130 <br />Nickel (Ni) ND 50 22.29 23.83 96.6 103.3 6.7 30 70-130 <br />II. LCS Result <br />Unit: ppm <br />Analyte EPA Method LCS Value True Value Rec.% Accept. Limit <br />Cadmium (Cd) 6010B 9.796 10 98.0 80-120 <br />Copper (Cu) 6010B 10.72 10 107.2 80-120 <br />Lead (Pb) 6010B 9.293 10 92.9 80-120 <br />Nickel (Ni) 6010B 9.049 10 90.5 80-120 <br /> <br />ND: Not Detected (at the specified limit).