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_ Page 12 of 36 <br /> alscience R <br /> nvironrnenta! Analytical Report <br /> J, aboratories, Inc. ntq <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 2 of 6 <br /> Lab Sample Date/Time Date Date/Time <br /> Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID <br /> F-33-MW4 12-03-1242-4-A 03/15/12 Aqueous GC/MS L 03/22/12 03/23/12 120322L01 <br /> 12:05 00:31 <br /> Parameter Result RL DF Qual Parameter Result RL DF Qual <br /> Benzene 5500 1000 2000 Diisopropyl Ether(DIPE) ND 1000 2000 U <br /> Toluene 71000 1000 2000 Ethyl-t-Butyl Ether(ETBE) ND 1000 2000 U <br /> Ethylbenzene 5400 1000 2000 Tert-Amyl-Methyl Ether(TAME) ND 1000 2000 U <br /> Xylenes(total) 31000 1000 2000 1,2-Dibromoethane ND 1000 2000 U <br /> Methyl-t-Butyl Ether(MTBE) ND 1000 2000 U 1,2-Dichloroethane ND 1000 2000 U <br /> Tort-Butyl Alcohol(TBA) ND 10000 2000 U <br /> Surrogates: REC(%) Control —0102 Surrogates: REC(%) Control Qual <br /> Limits Limits <br /> 1,4-Bromofluorobenzene 100 68-120 Dibromofluoromethane 100 80-127 <br /> 1,2-Dichloroethane-d4 101 80-128 Toluene-d8 97 80-120 <br /> W-31-MW5 12-03-1242-5-C 03/15/12 Aqueous GC/MS L 03/26/12 03126/12 120326L01 <br /> 09:20 15:44 <br /> Parameter Result RL DF Qual Parameter Result RL DF Qual <br /> Benzene 130 2.5 5 Diisopropyl Ether(DIPE) ND 2.5 5 U <br /> Toluene 18 2.5 5 Ethyl-t-Butyl Ether(ETBE) ND 2.5 5 U <br /> Ethylbenzene 42 2.5 5 Tert-Amyl-Methyl Ether(TAME) ND 2.5 5 U <br /> Xylenes(total) 55 2.5 5 1,2-Dibromoethane ND 2.5 5 U <br /> Methyl-t-Butyl Ether(MTBE) ND 2.5 5 U 1,2-Dichloroethane ND 2.5 5 U <br /> Tert-Butyl Alcohol(TBA) ND 25 5 U <br /> Surrogates: REC Control QUI Surrogates: REC(%) Control QuI <br /> Lb2k limb <br /> 1,4-Bromofluorobenzene 101 68-120 Dibromofluoromethane 104 80-127 <br /> 1,2-Dichloroethane-04 106 80-128 Toluene-d8 102 80-120 <br /> W-32-MW6 12-03-1242.6-B 03114/12 Aqueous GC/MS L 03124/12 03/25/12 120324L02 <br /> 17:40 03:11 <br /> Parameter Result RL Df Qual Parameter Result RL DF Qual <br /> Benzene 1.7 0.50 1 Diisopropyl Ether(DIPE) ND 0.50 1 U <br /> Toluene 0.60 0.50 1 Ethyt-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) 0.71 0.50 1 1,2-Dibromoethane ND 0.50 1 U <br /> Methyl4-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 /> Surroaatesq REC(%1 Control Qual Surrogates: REC % Control Q ra <br /> Limits Limits <br /> 1,4-Bromofluorobenzene 94 68-120 Dibromofluoromethane 107 80-127 <br /> 1,2-Dichloroethane-d4 108 80-128 Toluene-d8 97 80-120 <br /> RL-Reporting Limit DF-Dilution Factor Qual-Qualifiers <br /> W4� <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714)894-7501 <br />