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Calscience <br />AL-nvironmental <br />I <br />� aboratories, Inc. <br />Cardno ERI <br />601 North McDowell Blvd. <br />Petaluma, CA 94954-2312 <br />Project: ExxonMobil99CAS/022789C <br />Client Sample Number <br />5-30-AS6 <br />Parameter <br />Benzene <br />Toluene <br />Ethylbenzene <br />Xylenes (total) <br />Methyl -t -Butyl Ether (MTBE) <br />Tert-Butyl Alcohol (TBA) <br />Surrogates: <br />1,4-Bromoiluorobenzene <br />1,2-Dichloroethane-d4 <br />Page 9 of 27 <br />Analytical Report <br />Date Received: <br />09/23/11 <br />Work Order No: <br />11-09-1580 <br />Preparation: <br />EPA 5030C <br />Method: <br />EPA 8260B <br />Units: <br />mg/kg <br />2000 <br />Page 2 of 3 <br />Lab Sample Date/Time Date <br />Number Collected Matrix Instrument prepare <br />11.09-1580-4-A 09/22/11 Solid GC/MS PP 09/23/11 <br />08:30 <br />Result <br />RL <br />DF <br />Qual <br />ND <br />5.0 <br />1000 <br />U <br />240 <br />10 <br />2000 <br />U <br />66 <br />5.0 <br />1000 <br />U <br />430 <br />5.0 <br />1000 <br />U <br />ND <br />5.0 <br />1000 <br />U <br />ND <br />50 <br />1000 <br />U <br />REC (%) <br />Control <br />Qual <br />Limits <br />101 <br />60-132 <br />100 <br />62-146 <br />Parameter <br />Diisopropyl Ether (DIPE) <br />Ethyl -t -Butyl Ether (ETBE) <br />Tert-Amyl-Methyl Ether (TAME) <br />Ethanol <br />1,2-Dibromoethane <br />1,2-Dichloroethane <br />Surroaates: <br />D ibromofluorometh ane <br />Toluene -d8 <br />Date/Time <br />d Analyzed QC Batch I❑ <br />09/28/11 1109271-03 <br />08:29 <br />Result RL DF Qual <br />ND 10 1000 U <br />ND 10 1000 U <br />ND 10 1000 U <br />ND 250 1000 U <br />ND 5.0 1000 U <br />ND 5.0 1000 U <br />REC % Control Qual <br />Limits <br />94 63-141 <br />101 80-120 <br />F <br />ethod Blank 099-12-882-1,155 N/A Solid GC/MS PP 09/27/11 09/28/11 110927L03 <br />01:06 <br />Parameter <br />Benzene <br />Toluene <br />Ethylbenzene <br />Xylenes (total) <br />Methyl -t -Butyl Ether (MTBE) <br />Tert-Butyl Alcohol (TBA) <br />Surroaates: <br />1,4-B romofluorobenzene <br />1,2-Dichloroethane-d4 <br />Result <br />RL <br />DF <br />Qual <br />ND <br />0.50 <br />100 <br />U <br />ND <br />0.50 <br />100 <br />U <br />ND <br />0.50 <br />100 <br />U <br />ND <br />0.50 <br />100 <br />U <br />ND <br />0.50 <br />100 <br />U <br />ND <br />5.0 <br />100 <br />U <br />REC (%) <br />Control <br />Qual <br />Limits <br />98 <br />60-132 <br />97 <br />62-146 <br />Parameter <br />Diisopropyl Ether (DIPE) <br />Ethyl -t -Butyl Ether (ETBE) <br />Tert-Amyl-Methyl Ether (TAME) <br />Ethanol <br />1,2-Dibromoethane <br />1,2-Dichloroethane <br />Surrogates: <br />D ibromofluoromethane <br />Toluene -d8 <br />Result <br />RL <br />DF <br />Qual <br />ND <br />1.0 <br />100 <br />U <br />ND <br />1.0 <br />100 <br />U <br />ND <br />1.0 <br />100 <br />U <br />ND <br />25 <br />100 <br />U <br />ND <br />0.50 <br />100 <br />U <br />ND <br />0.50 <br />100 <br />U <br />REC % <br />Control <br />Qual <br />Limits <br />101 <br />63-141 <br />99 <br />80-120 <br />Method Blank 099-12-882-1,157 N/A Solid GC/MS XX 09/28/11 09/28/11 110928706 <br />23:52 <br />Parameter <br />Benzene <br />Toluene <br />Ethylbenzene <br />Xylenes (total) <br />Methyl -t -Butyl Ether (MTBE) <br />Tert-Butyl Alcohol (TBA) <br />Surroaates: <br />1,4-Bromofluorobenzene <br />1,2-Dichloroethane-d4 <br />Result <br />R <br />DF <br />Qual <br />ND <br />0.50 <br />100 <br />U <br />ND <br />0.50 <br />100 <br />U <br />ND <br />0.50 <br />100 <br />U <br />ND <br />0.50 <br />100 <br />U <br />ND <br />0.50 <br />100 <br />U <br />ND <br />5.0 <br />100 <br />U <br />REC (%) <br />Control <br />Qual <br />Limits <br />100 <br />60-132 <br />111 <br />62-146 <br />RL -Reporting Limit , DF - Dilution Factor , Qual - Qualifiers <br />Parameter <br />Diisopropyl Ether (DIPE) <br />Ethyl -t -Butyl Ether (ETBE) <br />Tert-Amyl-Methyl Ether (TAME) <br />Ethanol <br />1,2-Dibromoethane <br />1,2-Dichloroethane <br />Surroaates: <br />D ibromofluoromethane <br />Toluene -d8 <br />Result <br />RL <br />DF <br />Qual <br />ND <br />1.0 <br />100 <br />U <br />ND <br />1.0 <br />100 <br />U <br />ND <br />1.0 <br />100 <br />U <br />ND <br />25 <br />100 <br />U <br />ND <br />0.50 <br />100 <br />U <br />ND <br />0.50 <br />100 <br />U <br />RE ° <br />Control <br />Qual <br />Limits <br />95 <br />63-141 <br />100 <br />80-120 <br />&" 7440 Lincoln Way, Garden Grove, CA 92841-1427 9 TEL:(714) 895-5494 9 FAX: (714) 894-7501 <br />