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Page 15 of 36 <br /> alscience _ <br /> AC: nvironmentai Analytical Report <br /> aboratories, Inc. <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 5 of 6 <br /> Lab Sample Date/Time Date Daterrime <br /> Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID <br /> W-32-Ex1 12-03-1242-13-B 03/15/12 Aqueous GC/MS L 03/24/12 03/25/12 120324L02 <br /> 12:55 06:23 I <br /> Parameter Result RL DF Qual Parameter Result RL DF Qual <br /> Benzene 6600 1000 2000 Diisopropyl Ether(DIPE) ND 1000 2000 U <br /> Toluene 38000 1000 2000 Ethyl-t-Butyl Ether(ETBE) ND 1000 2000 U <br /> Ethylbenzene 2200 1000 2000 Tert-Amyl-Methyl Ether(TAME) ND 1000 2000 U <br /> Xylenes(total) 140p0 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 /> Tert-Butyl Alcohol(TBA) ND 10000 2000 U <br /> Surrogates: REC % Control (amu ll Surr ates: REC(%) Control Qual <br /> Limits lbi <br /> 1,4-Bromofluorobenzene 96 68-120 Dibromofluoromethane 106 80-127 <br /> 1,2-Dichloroethane-d4 109 80-128 Toluene-d8 95 80-120 <br /> W-33-EX2 12-03-1242-14-B 03/15/12 Aqueous GC/MS L 03/24112 03125/12 120324L02 <br /> 13:50 06:51 <br /> Parameter Result RL DF Qual Parameter Result RL DF Qual <br /> Benzene 6400 1000 2000 Diisopropyl Ether(DIPE) ND 1000 2000 U <br /> Toluene 84000 2500 5000 Ethyl-t-Butyl Ether(ETBE) ND 1000 2000 U <br /> Ethylbenzene 4100 1000 2000 Tert-Amyl-Methyl Ether(TAME) ND 1000 2000 U <br /> Xylenes(total) 28000 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 /> Tert-Butyl Alcohol(TBA) ND 10000 2000 U <br /> Surrogates: REC % Control 291 Surroaates: REC(%) Control Qual <br /> Limits Limits <br /> 1,4-Bromofluorobenzene 93 68-120 Dibromofluoromethane 111 80-127 <br /> 1,2-Dichloroethane-d4 113 80-128 Toluene-d8 100 80-120 <br /> Method Blank 099-12-884-821 N/A Aqueous GC/MS L 03/22/12 03/22/12 120322L01 <br /> 19:02 <br /> Parameter Result RL DF Qual Parameter Result $L 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 /> MethA4-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 /> Surroaatess REC(%) Control Qual Surrogates: REC(%) Control Qual <br /> Limi s Lbih <br /> 1,4-Bromofluorobenzene 95 68-120 Dibromofluoromethane 98 80-127 <br /> 1,2-Dichloroethane-d4 98 80-128 Toluene-d8 101 80-120 <br /> RL-Reporting Limit DF-Dilution Factor Qual-Qualifiers <br /> W4� <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 9 TEL:(714)895-5494 • FAX: (714)894-7501 <br />