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= _ Laboratories Inc. I� <br /> Environmental Testing Laboratory Since 1949 <br /> ETechnology <br /> Reported: 09/15/2010 9:36 <br /> rive Project: 10013 <br /> Project Number: 4512968329 <br /> Project Manager: Anju Farfan <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 Quats <br /> QC Batch ID: 6710141 <br /> Benzene BT10141-BLK7 <br /> NO ug/L 0.50 <br /> 1,2-Dibromoethane BT10141-BLK1 NO ug/L 0.50 <br /> 1,2.Oichloroethane <br /> 13TI0141-BLK7 ND ug/L 0.50 <br /> Ethyibenzene BT10141-BLK1 NO ug/L 0.50 <br /> Methyl t-butyl ether BTI0141-BLK1 NO _u9A 0.50 — <br /> Toluene - BT10141-BLK1 <br /> NO ug/L 0.50 <br /> Total Xylenes BT10141-BLK1 NO ug/L 1.0 -- <br /> t-Amyl Methyl ether BTI0141-BLK7 NO ug/L 0.50 <br /> t-Butyl alcohol ST10141-BLK7 ND ug/L _ 10 <br /> Diisopropyl ether BT10141-BLKI NO ug/L - 0.50 <br /> Ethanol ST10141-BLK1 NO ug/L 250 <br /> Ethyl t-butyl ether BT10141-BLK7 NO ug/L 0.50 <br /> 1,2-Dichlaoelhana-d4(Surrogate) BT10141-BLK7 105 % 76-114 (LCL-UCL) <br /> Toluene-d8(Surrogate) BT10141-81-K7 102 % 88-110 (LCL-UCL) <br /> 4-Bromolluorobenzene(Surrogate) BT10141-BLK7 94.0 % 86-115 (LCL-UCL) <br /> 771e results M this report apply to the samples anolyeed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety. <br /> .911 rzsule 4ue4 in this repan are for the exclusive use of the submitting WnY.BC Lbarotoritt,Inc,---no responsibility far report altemtion,xgrafion,detachment ar third oanY interonnation. <br /> 4100 Alias Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 w .bclabs.com <br /> Page IFB of 87 <br />