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=.0 McCampbell Analytical, Inc. <br />"When Quality Counts" <br />1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br />http://www.mccampbell.com / E-mail: main@mccampbell.com <br /> <br />Quality Control Report <br />Client: Atlas Technical Consultants <br />Date Prepared: 02/18/2021 <br />Date Analyzed: 02/18/2021 <br />Instrument: GC18 <br />Matrix: Soil <br />Project: 91-57962-PW; FUHSD <br />WorkOrder: 2102A42 <br />BatchID: 215583 <br />Extraction Method: SW5030B <br />Analytical Method: SW8260B <br />Unit: mg/kg <br />Sample ID: MB/LCS/LCSD-215583 <br />QC Summary Report for SW8260B <br />Analyte MB <br />Result <br />MDL RL SPK <br />Val <br />MB SS <br />YoREC <br />MB SS <br />Limits <br />Acetone ND 0.120 0.200 <br />tert-Amyl methyl ether (TAME) ND 0.000740 0.00500 <br />Benzene ND 0.000870 0.00500 <br />Bromobenzene ND 0.000910 0.00500 <br />Bromochloromethane ND 0.000910 0.00500 <br />Bromodichloromethane ND 0.0000940 0.00500 <br />Bromoform ND 0.00390 0.00500 <br />Bromomethane ND 0.00250 0.00500 <br />2-Butanone (MEK) ND 0.0230 0.0500 <br />t-Butyl alcohol (TBA) ND 0.0230 0.0500 <br />n-Butyl benzene ND 0.00140 0.00500 <br />sec-Butyl benzene ND 0.00150 0.00500 <br />tert-Butyl benzene ND 0.00170 0.00500 <br />Carbon Disulfide ND 0.00150 0.00500 <br />Carbon Tetrachloride ND 0.000120 0.00500 <br />Chlorobenzene ND 0.000870 0.00500 <br />Chloroethane ND 0.00160 0.00500 <br />Chloroform 0.000553,J 0.000190 0.00500 <br />Chloromethane ND 0.00170 0.00500 <br />2-Chlorotoluene ND 0.00130 0.00500 <br />4-Chlorotoluene ND 0.00100 0.00500 <br />Dibromochloromethane ND 0.000420 0.00500 <br />1,2-Dibromo-3-chloropropane ND 0.000490 0.00500 <br />1,2-Dibromoethane (EDB) ND 0.000120 0.00500 <br />Dibromomethane ND 0.000950 0.00500 <br />1,2-Dichlorobenzene ND 0.00230 0.00500 <br />1,3-Dichlorobenzene ND 0.00100 0.00500 <br />1,4-Dichlorobenzene ND 0.00100 0.00500 <br />Dichlorodifluoromethane ND 0.00170 0.00500 <br />1,1-Dichloroethane ND 0.000810 0.00500 <br />1,2-Dichloroethane (1,2-DCA) 0.0000778,J 0.0000710 0.00500 <br />1,1-Dichloroethene ND 0.0000690 0.00500 <br />cis-1,2-Dichloroethene ND 0.000750 0.00500 <br />trans-1,2-Dichloroethene ND 0.00120 0.00500 <br />1,2-Dichloropropane ND 0.000780 0.00500 <br />1,3-Dichloropropane ND 0.00100 0.00500 <br />2,2-Dichloropropane ND 0.00120 0.00500 <br />1,1-Dichloropropene ND 0.000960 0.00500 <br />(Cont.) <br />CA ELAP 1644 • NELAP 40330RELAP <br />Page 45 of 68