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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> \ Mccampbell Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" http://www.mccampbell.com/E-mail:mainanccampbell.com <br /> Quality Control Report <br /> Client: Hurvitz Environmental WorkOrder: 1412460 <br /> Date Prepared: 12/10/14 BatchlD: 98810 <br /> Date Analyzed: 12/11/14 Extraction Method: SW5030B <br /> Instrument: GC7 Analytical Method: SW802113/801513m <br /> Matrix: Soil Unit: mg/Kg <br /> Project: 43084.01;Donaldson Tire Sample ID: MB/LCS-98810 <br /> 1412428-015AMS/MSD <br /> QC Summary Report for SW8021B/8015Bm <br /> Analyte MB LCS RL SPK MB SS LCS LCS <br /> Result Result Val %REC %REC Limits <br /> TPH(btex) ND 0.661 0.40 0.60 110 70-130 <br /> MTBE ND 0.102 0.050 0.10 102 70-130 <br /> Benzene ND 0.114 0.0050 0.10 - 114 70-130 <br /> Toluene ND 0.109 0.0050 0.10 - 108 70-130 <br /> Ethylbenzene ND 0.115 0.0050 0.10 - 115 70-130 <br /> Xylenes ND 0.354 0.0050 0.30 - 118 70-130 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.112 0.114 0.10 112 114 70-130 <br /> Analyte MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> Result Result Val Val %REC %REC Limits Limit <br /> TPH(btex) 0.619 0.651 0.60 ND 103 108 70-130 5.03 20 <br /> MTBE 0.0989 0.0970 0.10 ND 99 97 70-130 1.98 20 <br /> Benzene 0.106 0.112 0.10 ND 106 112 70-130 5.05 20 <br /> Toluene 0.102 0.107 0.10 ND 101 106 70-130 4.97 20 <br /> Ethylbenzene 0.106 0.111 0.10 ND 105 111 70-130 5.04 20 <br /> Xylenes 0.328 0.342 0.30 ND 109 114 70-130 4.39 20 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.104 0.110 0.10 104 111 70-130 5.97 20 <br /> CDPH ELAP 1644 NELAP 4033ORELAP ` QA/QC Officer <br /> Page 28 of 33 <br />