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1534 Willow Pass Ro.._,.ittsburg,CA 94565-1701 <br /> McCampbell Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> \ "WhenUQ�IIyCOG/t1S�� http://www.mccampbell.com/E-mail:mainn ccampbell.com <br /> Quality Control Report <br /> Client: Pangea Environmental Svcs.,Inc. WorkOrder: 1407387 <br /> Date Prepared: 7/14/14 BatchID: 92710 <br /> Date Analyzed: 7/15/14 Extraction Method: SW5030B <br /> Instrument: GC19 Analytical Method: SW802113/80156m <br /> Matrix: Soil Unit: mg/Kg <br /> Project: #1540.001;Tracy Office Plaza Sample ID: MB/LCS-92710 <br /> 1407426-001 AMS/MSD <br /> QC Summary Report for SW8021B/8015Bm <br /> Analyte MB LCS RL SPK MB LCS LCS <br /> Result Result Val SS%REC %REC Limits <br /> TPH(btex) ND 0.567 0.40 0.60 94.5 70-130 <br /> MTBE ND 0.0970 0.050 0.10 - 97 70-130 <br /> Benzene ND 0.104 0.0050 0.10 - 104 70-130 <br /> Toluene ND 0.106 0.0050 0.10 - 106 70-130 <br /> Ethylbenzene ND 0.106 0.0050 0.10 - 106 70-130 <br /> Xylenes ND 0.337 0.0050 0.30 - 112 70-130 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.107 0.104 0.10 107 104 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) 0.497 0.482 0.60 ND 82.9 80.3 70-130 3.17 20 <br /> MTBE 0.0837 0.0807 0.10 ND 83.7 80.7 70-130 3.59 20 <br /> Benzene 0.0940 0.0878 0.10 ND 94 87.8 70-130 6.81 20 <br /> Toluene 0.0956 0.0898 0.10 ND 95.6 89.8 70-130 6.26 20 <br /> Ethylbenzene 0.0947 0.0895 0.10 ND 94.7 89.5 70-130 5.60 20 <br /> Xylenes 0.301 0.286 0.30 ND 100 95.3 70-130 5.24 20 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.0939 0.0895 0.10 94 90 70-130 4.80 20 <br /> CDPH ELAP 1644 NELAP 4033ORELAP `' QA/QC Officer <br /> Page 10 of 19 <br />