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1534 Willow Pass Roaa,..asburg,CA 94565-1701 <br /> MCCampbell Anaiytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "WhenUR/[ty Counts" http://www.mccanipbell.com/E-mail:main@,mccampbell.com <br /> Quality Control Report <br /> Client: Pangea Environmental Svcs.,Inc. WorkOrder: 1407387 <br /> Date Prepared: 7/11/14 BatchlD: 92660 <br /> Date Analyzed: 7/14/14 Extraction Method: SW5030B <br /> Instrument: GC19 Analytical Method: SW802113/801513m <br /> Matrix: Soil Unit: mg/Kg <br /> Project: #1540.001;Tracy Office Plaza Sample 1D: MB/LCS-92660 <br /> 1407376-025AMS/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 0.571 0.40 0.60 - 95.2 70-130 <br /> MTBE ND 0.0968 0.050 0.10 - 96.9 70-130 <br /> Benzene ND 0.108 0.0050 0.10 - 108 70-130 <br /> Toluene ND 0.108 0.0050 0.10 - 108 70-130 <br /> Ethylbenzene ND 0.109 0.0050 0.10 - 109 70-130 <br /> Xylenes ND 0.345 0.0050 0.30 - 115 70-130 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.107 0.106 0.10 107 106 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) 0.537 0.510 0.60 ND 89.4 85 70-130 5.10 20 <br /> MTBE 0.0856 0.0808 0.10 ND 85.6 80.8 70-130 5.88 20 <br /> Benzene 0.0932 0.0927 0.10 ND 93.2 92.7 70-130 0.589 20 <br /> Toluene 0.0962 0.0955 0.10 ND 96.2 95.5 70-130 0.747 20 <br /> Ethylbenzene 0.0971 0.0962 0.10 ND 97.1 96.2 70-130 0.943 20 <br /> Xylenes 0.306 0.305 0.30 ND 102 102 70-130 0 20 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.0931 0.0937 0.10 93 94 70-130 0.556 20 <br /> (Cont.) <br /> CDPH ELAP 1644 NELAP 4033ORELAP <br /> QA/QC Officer <br /> Page 9 of 19 <br />