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M��!!—Tr—TTZL� <br /> , Inc.boratory Since 1949 <br /> Ground Zero Analysis,Inc. Reported: 05/01/2013 14:26 <br /> 1172 Kansas Avenue ' Project: Groundwater Samples(Del Tech) <br /> Modesto,CA 95354 Project Number: 425.2 <br /> Project Manager: Andrew Dorn <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: BWD2270 <br /> Benzene BWD2270-BLK1 ND ug/L 0.50 0.083 <br /> _ ..._ <br /> 1,2-Dirhloroelhane BWD2270.8LK1 ND ug/L 0.50 0.17 <br /> Ethylbenzene BWD2270-BLK1 ND ugiL 0.50 0:098 <br /> Methyl t-butyl ether BW02270-BLK1 ND ug/L 0.50 0.11 <br /> Toluene BWD2270-BLK7 ND ugiL 0.50 _ 0.093 <br /> Total Xylenes BWD2270-BLK1 ND ugiL 1.0 0.36 <br /> -- <br /> Total Purgeable Petroleum Hydrocarbons BWD2270-BLK1 ND ugiL 50 _ 7.2 <br /> 1,2-Dichlomethane-d4 ISurrogale) BWD2270-BLK1 100 % 75-125 (LCL-UCL) <br /> Toluece-08 ISurwgate) BWD2270-BLK7 101 % 80-120 (LCL-UCL) <br /> 4-8rornolluorobenzene(Surrogate) BWD2270-BLK1 89.5 % 80-120 (LCL-UCL) <br /> QC Batch ID: BWD2374 <br /> Benzene BW02374-BLKI ND ug/L 0.50 0.083_ <br /> 12-Dichloicethane BWD2374-BLK1 ND ug/L 0.50 0.1 <br /> Elhylbenzena BWD2374-BLK1 NO ug/L 0.50 D. <br /> 098 <br /> Methyl t-butyl e0wf BWD2374-BLK7 - _-_- ..ND ug/L 0.50 0.11 -_ <br /> Toluene BWD2374-81-1<1 ND ug/L 0.50 0.093 <br /> Total Xylenes BWD2374-BLK7 ND ugiL 1.0 0.36 <br /> Total Purgeable Petroleum Hydrocarbons BWD2374-BLK1 ND ug/L 50 <br /> 1,2-DicNor oelhana-d4(Surrogate) BWD2374-BLK1 101 % 75-125 (LCL-UCL) <br /> Toluene-dB(Surrogate) BW02374-BLK7 g9.7 % so-120 (LCL-UCL) <br /> 4.Bromolluorobenzene(Surrogate) BWD2374-BLK1 93.0 % 80-120 (LCL-UCL) <br /> 1W,mduin this,epmvuppiysoshe saanp/esnunly:edinnccordmrce mirk the clrnill of...tody donuner¢Thi mQlicnl sxpors must hl,M,,,oduced inPis/s Yiaire0% <br /> All rcsaiss ha eJ in iM1ismp,n arc for the sxdusivenA.rdmsnbmln%11.SCLab..1-6ea.11l.msnmes no rcsnonsibilis for nahemiion.uparniun.deiecM1,ne.os shiN n mmrctaion. <br /> 4100 Atlas Coun Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 vnwv.6clabs.com Page 19 or 22 <br />