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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Geological Technics Reported: 01/28/2013 10:19 <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 8260) <br /> Quality Control Report - Method Blank Analysis <br /> Constituent QC Sample ID MB Result Units PQL MDL Lab Quals <br /> QC Batch ID: BWA1558 <br /> Benzene BWA1558-BLK1 NO ug/L 0.50 0.083 <br /> 1,2-0tchloroethane BWA1558-BLK1 NO uglL 0.50 0.17 <br /> Elhylbenzene BWA1558-BLKI NO ugA. 0.50 0.098 <br /> Methyl t-bulyl ether BWA1558-BLK7 NO ug/L 0.50 0.11 <br /> Toluene BWA1558-BLK7 NO uglL 0.50 0.093 <br /> Total Xylenes BWA1558-BLK1 NO ug/L 1.0 0.36_ <br /> Total Purgeable Petroleum Hydrocarbons BWA1558.BLK1 NO ug/L 50 7.2 <br /> 12-Dichloroethane-d4(Surrogate) BWA1558-BLK1 97.9 % 75-125 (LCL-UCL) <br /> Toluene-d8(Surrogate) BWA1558-BLK1 91.8 % _ 80-120 (LCL-UCL) <br /> 4-Bromolluorobenzene(Surrogate) BWA1558-BLK7 105 % 80-120 (LCL-UCL) <br /> The resdrs in INS'eporr opplp to rhe sonrple.....1):ed in oecmdance with the chain oJ'cosmd�-documeor.Thisnnnl/vicel reyn)'r horst he too odnced in irs."he y.. <br /> NI matte lined in Ihis rerun arc ronLe excheirc Iva ur.he subni tot p ny.HC Ub--ia,h¢..unnnes to means Inky for nmn.moeo%eceanlion.dnaeM1mere.,hid piny imcmrcmlion. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)3274911 FAX(661)327-1918 www.bctabs.com Page 11 of 14 <br />