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`' <br />Analytical Laboraltory CERTIFICATE OFANALYSIS <br />Thursday, October 17, 2013 <br />Attention: Robert . E. Marry <br />Advanced GeoEnvironmental, Inc. Report Page 18 of 20 <br />837 Shaw Road <br />Stockton, CA 95215 <br />Volatile Organic Compounds by EPA Method 8260B - Quality Control <br />Precision Enviro-Tech <br />Reporting Spike Source %REC RPD <br />Analvte Result Limit Units level Result %REC Limits RPD Limit Notes <br />Batch AJ31513 - Volatiles <br />Blank (AJ31513-BLK_1)_ <br />- ------ <br />Prepared & Analyzed: 15 -Oct <br />tert-Butyl Alcohol (TBA) <br />ND <br />50.0 ug/kg <br />Methyl tert-butyl Ether (MtBE) <br />ND <br />5.00 <br />Diisopropyl Ether (DIPE) <br />ND <br />5.00 " <br />Ethyl tert-Butyl Ether (ETRE) <br />ND <br />5.00 " <br />ten -Amyl Methyl Ether (TAME) <br />ND <br />5.00 " <br />1,2-Dihromoethane (EDB) <br />ND <br />5.00 <br />1,2-Dichloroethane <br />ND <br />5.00 <br />Ethylbenzene <br />ND <br />5.00 " <br />Benzene <br />ND <br />5.00 " <br />Toluene <br />ND <br />5.00 " <br />m,p-Xylene <br />ND <br />5.00 " <br />o -Xylene <br />ND <br />5.00 " <br />TPH-Gasoline <br />ND <br />200 " <br />LCS AJ31513-BS1 <br />- ------ <br />Prepared & Analyzed,l5_Oct-13 ________ <br />---------- <br />1,2-Dichloroethane <br />ND <br />5.00 ugtkg <br />75-122 <br />Ethylbenzenc <br />8.43 <br />5.00 <br />8.46 100 75-125 <br />Benzene <br />4.00 <br />0.500 <br />4.43 90 75-125 <br />Toluene <br />34.1 <br />5.00 <br />34.5 99 75-125 <br />m,p-Xylenc <br />36.4 <br />5.00 <br />36.0 101 75-125 <br />o -Xylene <br />11.2 <br />5.00 <br />13.0 86 75-1.25 <br />TPH-Gasoline <br />920 <br />200 <br />1000 92 75-125 <br />Matrix Spike (AJ31513-MSI) <br />Source: 3101110-01 <br />Prepared & Analyzed: 15 -Oct- 13 _ <br />1,2-Dichloroethane <br />ND <br />5.00 ug/kg <br />ND 0-200 <br />Ethylbenzene <br />44.4 <br />5.00 <br />33.8 32.9 34 0-200 <br />Benzene <br />18.2 <br />5.00 <br />17.7 3.88 81 75-125 <br />QM4X <br />Toluene <br />154 <br />5.00 <br />i38 74.0 58 75-125 <br />m,p-Xylene <br />208 <br />5.00 <br />144 145 43 0-200 <br />o -Xylene <br />49.3 <br />5.00 <br />52.0 44.0 10 0-200 <br />TPH-Gasoline <br />5260 <br />200 <br />4000 510 119 75-125 <br />ntg'l. - otilligrarms per / iter = poor <br />ng 7, - uticrogroms per /,iter - Ppb <br />RESPECTFULLY SUBMITTED, <br />DI.R _ Detection linin for Purpose of Reporting. <br />Exceptional sample matrices or interferrnces stay <br />resuh in higher detection limits. <br />Jonathan Le, Laboratory Director <br />3935 N. Coronado Ave Stocklon CA 95204 phone: (20.9) 4717-8105 Fay-: (209) 546-749% <br />