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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Shaw Project: Foothill LF,SJ County-5 year Reported: 09/03/2009 16:26 <br /> 1326 North Market Boulevard Project Number: 124591 <br /> Sacramento,CA 95834 Project Manager: Sheila Richgels <br /> Volatile Organic Analysis (EPA Method 8260) <br /> Quality Control Report- Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent <br /> Constituent Batch ID QC Sample ID QC Type Result Level PQL Units Recovery RPD Recovery RPD Lab Quals <br /> Benzene BSH1014 BSH1014-BS1 LCS 26.900 25.000 0,50 ug/L 108 70-130 <br /> Bromodichloromethane BSH1014 BSH1014-BS1 LCS 23.040 25.000 0.50 ug/L 92.2 70-130 <br /> Chloroethane BSH1014 BSH1014-BSI LCS 27.350 25.000 0.50 ug/L 109 70-130 <br /> 1,4-Dichlorobenzene BSH1014 BSH1014-BSI LCS 25.400 25.000 0.50 ug/L 102 70-130 <br /> 1,1-Dichioroethane BSH1014 SSH1014-BSI LCS 21.780 25.000 0.50 ug/L 87.1 70-130 <br /> 1,1-Dichioroethene SSH1014 BSH1014-BSI LCS 27.990 25.000 0.50 ug/L 112 70-130 <br /> Toluene BSH1014 BSH1014-BS1 LCS 24.540 25.000 0.50 ug/L 98.2 70-130 <br /> Trichloroethene BSH1014 BSH1014-BS1 LCS 23.180 25.000 0.50 ug/L 92.7 70-130 <br /> 1,2-Dichioroethane-d4(Surrogate) BSH1014 BSH1014-BSI LCS 10.130 10.000 ug/L 101 76-114 <br /> --- — -- — ---- ----- .........--- ------- ---- - — <br /> Toluene-d8(Surrogate) BSH1014 BSH1014-BS1 LCS 9.7000 10.000 ug/L 97.0 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BSH1014 BSH1014-BSI LCS 9.8400 10.000 ug/L 98.4 86-115 <br /> The results in this report apply to the samples analyzed in accordance with the chain ofcuslody documeni.This analytical report must be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting parry.BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bciabs.com Page 66 of 83 <br /> Certifications: Calffomia-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />