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_ Page 11 of 28 <br /> aiscience <br /> nvironmental Analytical Report <br /> aboratories, Inc. <br /> Cardno ERI Date Received: 09/24/11 <br /> 601 North McDowell Blvd. Work Order No: 11-09-1646 <br /> Petaluma, CA 94954-2312 Preparation: EPA 5030C <br /> Method: EPA 8260B <br /> Units: ug/L <br /> Project: ExxonMobil 99CAS/022789C Page 3 of 4 <br /> Lab Sample Date/Time Date Date/time <br /> Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID <br /> W 36-DW2 11-09-1646-7-A 09/22/11 Aqueous GCIMS L 09/27/11 09/28/11 110927L03 <br /> 11:10 04:21 <br /> Parameter Result RL DF Qual Parameter Result RL DF Qual <br /> Benzene ND 0.50 1 U Diisopropyl Ether(DIPE) ND 0.50 1 U <br /> Toluene ND 0.50 1 U Ethyl-t-Butyl Ether(ETBE) ND 0.50 1 U <br /> Ethylbenzene ND 0.50 1 U Tert-Amyl-Methyl Ether(TAME) ND 0.50 1 U <br /> Xylenes(total) ND 0.50 1 U 1,2-Dibromoethane ND 0.50 1 U <br /> Methyl-t-Butyl Ether(MTBE) ND 0.50 1 U 1,2-Dichloroethane ND 0.50 1 U <br /> Tert-Butyl Alcohol(TBA) ND 5.0 1 U <br /> Surroaates: REC % Control Qual Surrogates: REC % Control Qual <br /> Limits Limits <br /> 1,4-Bromofluorobenzene 92 68-120 Dibromofluoromethane 102 80-127 <br /> 1,2-Dichloroethane-d4 103 80-128 Toluene-d8 95 80-120 <br /> W-34-DW4 11-09-1646-8-A 09/22/11 Aqueous GC/MS L 09/27/11 09/28/11 1109271-03 <br /> 10:15 04:50 <br /> Parameter Result RL DF Qual Parameter Result RL DF Qual <br /> Benzene 11 0.50 1 Diisopropyl Ether(DIPE) ND 0.50 1 U <br /> Toluene 7.1 0.50 1 Ethyl-t-Butyl Ether(ETBE) ND 0.50 1 U <br /> Ethylbenzene 2.7 0.50 1 Tert-Amyl-Methyl Ether(TAME) ND 0.50 1 U <br /> Xylenes(total) 5.7 0.50 1 1,2-Dibromoethane ND 0.50 1 U <br /> Methyl-t-Butyl Ether(MTBE) ND 0.50 1 U 1,2-Dichloroethane ND 0.50 1 U <br /> Tert-Butyl Alcohol(TBA) ND 5.0 1 U <br /> Surrogates: REC % Control Qual Surrogates: REC °° Control Qual z <br /> Limits Limits <br /> 1,4-Bromofluorobenzene 96 68-120 Dibromofluoromethane 99 80-127 <br /> 1,2-Dichloroethaned4 100 80-128 Toluene-d8 95 80-120 <br /> Method Blank 099-12-884-694 N/A Aqueous GC/MS L 09/27/11 09/28/11 1109271-03 <br /> 00:58 <br /> Parameter Result RL DF Qual Parameter Result RL DF Qual <br /> Benzene ND 0.50 1 U Diisopropyl Ether(DIPE) ND 0.50 1 U <br /> Toluene ND 0.50 1 U Ethyl-t-Butyl Ether(ETBE) ND 0.50 1 U <br /> Ethylbenzene ND 0.50 1 U Tert-Amyl-Methyl Ether(TAME) ND 0.50 1 U <br /> Xylenes(total) ND 0.50 1 U 1,2-Dibromoethane ND 0.50 1 U <br /> Methyl-t-Butyl Ether(MTBE) ND 0.50 1 U 1,2-Dichloroethane ND 0.50 1 U <br /> Tert-Butyl Alcohol(TBA) ND 5.0 1 U <br /> Surrogates: REC °° Control Qual Surrogates: REC Control Qual <br /> Limits Limits <br /> 1,4-Bromofluorobenzene 94 68-120 Dibromofluoromethane 99 80-127 <br /> 1,2-Dichloroethane-d4 108 80-128 Toluene-d8 95 80-120 <br /> RL-Reporting Limit DF-Dilution Factor Qual-Qualifiers <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714)895-5494 FAX: (714) 894-7501 <br />