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_ Page 16 of 36 <br /> alscience <br /> nvironmental Analytical Report <br /> = ahorafories, Inc. 3 <br /> Cardno ERI Date Received: 03/17/12 <br /> 601 North McDowell Blvd. Work Order No: 12-03-1242 <br /> Petaluma, CA 94954-2312 Preparation: EPA 5030C <br /> Method: EPA 8260B <br /> Units: ug/L <br /> Project: ExxonMobil 99CAS/022789C Page 6 of 6 <br /> Lab Sample Daterl ime Matrix Instrument Date Date/Time <br /> Client Sample Number Number Collected Prepared Analyzed QC Batch ID <br /> Method Blank 099-12-884-822 NIA Aqueous GUMS L 03/24/12 03/25/12 120324L02 <br /> 00:27 <br /> Parameter Result RL OF Qual Parameter Result RL DF Qual <br /> Benzene NO 0.50 1 U Diisopropyl Ether(DIPE) NO 0.50 1 U <br /> Toluene ND 0.50 1 U Ethyl-t-Butyl Ether(ETBE) ND 0.50 1 U <br /> Ethylbenzene NO 0.50 1 U Tert-Amyl-Methyl Ether(TAME) NO 0.50 1 U <br /> Xylenes(total) NO 0.50 1 U 1,2-Dibromoethane NO 0.50 1 U <br /> Methyl-t-Butyl Ether(MTBE) ND 0.50 1 U 1,2-Dichloroethane NO 0.50 1 U <br /> Tert-Butyl Alcohol(TBA) NO 5.0 1 U <br /> Surrogates: REC % Control Qum Surrogates: REC % Control Qual <br /> Limits LiML <br /> 1,4-Bromofluorobenzene 95 68-120 Dibromofluoromethane 100 80-127 <br /> 1,2-Dichloroethane-d4 102 80-128 Toluene-d8 98 80-120 <br /> Method Blank 099-12-884-823 N/A Aqueous GUMS L 03/26/12 03/26/12 120326L01 <br /> 11:36 <br /> Parameter Result RL OF Qual Parameter Result RL OF Qual <br /> Benzene NO 0.50 1 U Diisopropyl Ether(DIPE) NO 0.50 1 U <br /> Toluene NO 0.50 1 U Ethyl-t-Butyl Ether(ETBE) NO 0.50 1 U <br /> Ethylbenzene NO 0.50 1 U Tert-Amyl-Methyl Ether(TAME) ND 0.50 1 U <br /> Xylenes(total) NO 0.50 1 U 1,2-Dibromoethane NO 0.50 1 U <br /> Methyl-t-Butyl Ether(MTBE) ND 0.50 1 U 1,2-Dichloroethane NO 0.50 1 U <br /> Tert-Butyl Alcohol(TBA) NO 5.0 1 U <br /> Surrogates: REC ° Control Qum Surrogates: REC Control Qual <br /> Limits Limits <br /> 1,4-Bromofluorobenzene 92 66-120 Dibromofluoromethane 109 80-127 <br /> 1,2-Dichloroethane-d4 110 80-128 Toluene-d8 94 80-120 <br /> RL-Reporting Limit DF-Dilution Factor Qual-Qualifiers <br /> WA <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 9 TEL:(714) 895-5494 FAX: (714)894-7501 <br />