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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Reported: 07/08/2014 13:28 <br /> Ground Zero Analysis,Inc. Re P <br /> 1172 Kansas Avenue Project: Georges Service <br /> Modesto,CA 95354 Project Number. 425.2 <br /> Project Manager: Project Manager <br /> Volatile Organic Analysis (EPA Method 82606) <br /> Quality Control Report - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent Lab <br /> Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals <br /> QC Batch ID: BXG0496 Used client sample: Y-Description: OW-1, 06/30/2014 10:40 <br /> Benzene MS 1414636-08 0.25000 24.260 25.000 ug/L 96.0 70-130 <br /> MSD 1414636-08 0.25000 23.380 25.000 ug/L 3.7 92.5 20 70-130 <br /> Toluene MS 1414636-08 ND 23.890 25.000 ug/L 95.6 70-130 <br /> MSD 1414636-08 ND 23.110 25.000 ug/L 3.3 92.4 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1414636-08 ND 10.460 10.000 ug/L 105 75-125 <br /> MSD 1414636-08 ND 10.900 10.000 ug/L 4.1 109 75-125 <br /> Toluene-d8(Surrogate) MS 1414636-08 ND 10.470 10.000 ug/L 105 80-120 <br /> MSD 1414636-08 ND 10.500 10.000 ug/L 0.3 105 80-120 <br /> 4-Bromofiuombenzene(Surrogate) MS 1414636-08 ND 9.7600 10.000 ug/L 97.6 80-120 <br /> MSD 1414636-08 ND 9.8500 10.000 ug/L 0.9 98.5 80-120 <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document This analytical report must be reproduced in Its salMy. <br /> All results luted in this report me for the exclusive use ofthe submitting parry.BC rabomtories,Inc.assumes no responsibility for report alteretmq separation,detachment or third party intespretamm. <br /> Report ID: 1000252858 <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-1911 FAX(661)327-1918 W.vw.bclabs.com Page 21 of 22 <br />