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/� 1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br /> ��..V MCI.J (.II-I) pbell An (alyticalt Inc . Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br /> " When Quality Counts" hup://iw .immnpbell.com / E-mail: meine2aaoaempbell.com <br /> Quality Control Report <br /> Client: CVE Demolition WorkOrder: 1912750 <br /> Date Prepared: 12/12/19 BatchlD: 190566 <br /> Date Analyzed: 12/13/19 Extraction Method: SW5035 <br /> Instrument: GC19 Analytical Method: SW802113/801513im <br /> Matrix: Soil Unit: mg/Kg <br /> Project: D17124; West Side Market Sample ID: MB/LCS/LCSD-190566 <br /> QC Summary Report for SW8021B/8015Bm <br /> Analyte MB MDL RL SPK MB SS MB SS <br /> Result Val %REC Limits <br /> TPH(g) (C6-C12) ND 0.70 1 .0 <br /> MTBE ND 0.0040 0.050 <br /> Benzene ND <br /> Toluene ND 0.0020 0.0050 - - - <br /> Ethylbenzene ND 0.0022 0.0050 - - <br /> m,p-Xylene ND 0.0030 0.010 - - - <br /> o-Xylene ND 0.0010 0.0050 - - - <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.10 0.1 100 75-134 <br /> Analyte LCS LCSD SPK LCS LCSD LCSILCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> TPH(blex) 0.51 0.56 0.60 86 93 82-118 8.31 20 <br /> MTBE 0.080 0.084 0.10 80 84 61 -119 5.22 20 <br /> Benzene 0.11 0.10 0.10 113 104 77-128 7.43 20 <br /> Toluene 0.11 0.10 0.10 111 105 74-132 6.00 20 <br /> Ethylbenzene 0.11 0.11 0.10 111 106 84-127 4.01 20 <br /> m,p-Xylene 0.22 0.22 0.20 111 108 80-120 2.66 20 <br /> c-Xylene 0.11 0.11 0.10 106 106 80-120 0 20 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.11 0.10 0.10 110 101 75-134 8.08 20 <br /> CA ELAP 1644 a NELAP 4033ORELAP <br /> Page 29 of 34 <br />