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Laboratories Inc. I . <br /> Environmental Testing Laboratory Since 1949 <br /> Shaw Reported: 02/18/2013 14:19 <br /> 180 Promenade Circle,Suite 320 Project: Hamey Lane,S.J.County <br /> Sacramento,CA 95834 Project Number. 139866-Annual <br /> Project Manager: Sheila Richgels <br /> Volatile Organic Analysis (EPA Method 8260) <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: BWBO147 Used client sample: Y-Description: MW-2, 02/01/2013 11:26 <br /> 1,1-Dichloroethene MS 1302261-02 ND 24.500 25.000 ug/L 98.0 70-130 <br /> MSD 1302261-02 ND 24.190 25.000 ug/L 1.3 96.8 20 70-130 <br /> Toluene MS 1302261-02 0.28000 24.590 25.000 ug/L 97.2 70-130 <br /> MSD 1302261-02 0.28000 24.520 25.000 ug/L 0.3 97.0 20 70-130 <br /> Trichloroethene MS 1302261-02 ND 23.490 25.000 ug/L 94.0 70-130 <br /> MSD 1302261-02 ND 22.990 25.000 ug/L 2.2 92.0 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1302261-02 ND 10.060 10.000 ug/L 101 75-125 <br /> MSD 1302261-02 ND 10.340 10.000 ug/L 2.7 103 75-125 <br /> Toluene-d8(Surrogate) MS 1302261-02 ND 9.9700 10.000 ug/L 99.7 80-120 <br /> MSD 1302261-02 ND 9.8200 10.000 ug/L 1.5 98.2 80-120 <br /> 4-Bromofluorobetlzene(Surrogate) MS 1302261-02 ND 10.200 10.000 ug/L 102 80-120 <br /> MSD 1302261-02 ND 10.100 10.000 ug/L 1.0 101 80-120 <br /> • <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 entirely. <br /> All results listed m this report are for the exclusive use of the submitting party.BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third parry interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 vwvw.bclabs.com Page 44 of 49 <br />