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AMERICAN SCIENTIFIC LABORATORIES, LLC <br />Environmental 'Te.sling, Services <br />2520 AT San Femaneio Rd., Los AngeleA, ("A 90065 lie!: (323)21?-9700 Fax: t323)12i-9.500 <br />ANALYTICAL RESULTS <br /> <br />Page: 7 <br />Project ID: 1554 <br />Project Name: Former Wal-Mart Store <br />.ASL Job 'Number Submitted Client <br />32660 02/05/2007 SCERAN <br />Method: 8260B, Volatile Organic Compounds + Oxygenates <br />QC Batch No: 020707-1C <br />Our Lab I.D. 188512 188513 188514 188515 <br />Client Sample I.D. GPI-A, 10' GP1-B, 15' GPI-C, 20' GPI-D, 25' <br />Date Sampled 02/05/2007 02/05/2007 02/05/2007 02/05/200'7 <br />Date Prepared 02/07/2007 02/07/2007 02/07/2007 02/07/2007 <br />Preparation Method <br />Date Analyzed 02/07/2007 02/07/2007 02/07/2007 02/07/2007 <br />Matrix Soil Soil Soil Soil <br />Units ug/kg ug/kg ug/kg ug/kg <br />Dilution Factor I 1 I 1 <br />Analytes P L Results Results Results Results <br />1,2,3-Trichloropropane 10.00 ND ND ND ND <br />1,2,4-Trimethylbenzene 10.00 ND ND ND ND _ <br />1,3,5-Trimethylbenzene 10.00 ND ND ND ND <br />Vinyl acetate 50.0 ND ND ND ND <br />Vinyl chloride (Chloroethene) 30.00 ND ND ND ND <br />o-Xylene 2.0 ND ND ND ND <br />In- & p-Xylenes 4.00 ND ND ND ND <br />Our Lab I.D. 188512 188513 188514 188515 <br />Surrogates % Rec.Limit % Rec. % Rec. % Rec. % Rec. <br />Surrogate Percent Recovery <br />Bromofluorobenzene 70-120 109 102 103 108 <br />Dibromofluoromethane 70-120 99 96 103 104 <br />Toluene-d8 70-120 92 96 97 97 <br />QUALITY CONTROL REPORT <br />QC Batch No: 020707-1C <br />Analytes <br />MS <br />% REC <br />MS DUP <br />% REC <br />RPD <br />% <br />MS/MSD <br />% Limit <br />MS RPD <br />% Limit <br />Benzene 83 85 2.4 75-120 15 <br />Chlorobenzene 98 102 4 . 0 75-120 15 <br />1,1-Dichloroethene <br />(1,1-Dichloroethylene) <br />108 116 7.1 75-120 15 <br />MTBE 80 88 9.5 75-120 15 <br />Toluene (Methyl benzene) 93 97 4.2 75-120 15 <br />Trichloroethene (TCE) 86 90 4.5 75-120 15