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alscience <br />nvironmental <br />a <br />aboratories, Inc. <br />Cardno ERI <br />601 North McDowell Blvd. <br />Petaluma, CA 94954-2312 <br />Analytical Report <br />Date Received: <br />Work Order No: <br />Preparation: <br />Method: <br />Page 5 of 43 <br />05/26/11 <br />11-05-1637 <br />EPA 3510C <br />EPA 80158 (M) <br />Project: ExxonMobil 99CAS/022789C <br />Page 4 of 5 <br />Lab Sample Date/Time <br />Date <br />Date/Time <br />Client Sam ie Numtw Number Collected Matrix <br />Instrument <br />Prepared <br />Analyzed QC Batch ID <br />W-34-DW4 <br />11-05-1637-11-G 05118111 Aqueous <br />GC 45 <br />05126111 <br />05127/11 1105261308 <br />16:35 <br />09:03 <br />Comment(s): <br />-Sample received after recommended holding time. <br />-The sample extract was subjected to Silica Gel treatment prior to analysis. <br />Parameter <br />Result RL DF Qual <br />Units <br />TPH as Diesel <br />ND 50 1 U <br />ug/L <br />Surrogates: <br />REC (%) Control Limits Qual <br />Decachlorobiphenyi <br />95 68-140 <br />W-34-EX1 <br />11-05-1637-12-G 05119111 Aqueous <br />GC 45 <br />05/26111 <br />05127111 110526BOB <br />14:50 <br />09:19 <br />Comment(s): <br />-The sample chromatographic pattern for TPH does not match the chromatographic pattern <br />of the specified standard. Quantitation <br />of the unknown hydrocarbon(s) in the sample was based upon the specified standard. <br />-The sample extract was subjected to Silica Gel treatment prior to analysis. <br />Parameter <br />Result RL DF Qual <br />Units <br />TPH as Diesel <br />1200 250 5 <br />ug/L <br />Surrogates: <br />REC % Control Limits Qual <br />Decachlorobiphenyl <br />97 68-140 <br />W-34-EX2 <br />11-05-1637-13-G 05119111 Aqueous <br />GC 45 <br />05126111 <br />05127111 110526808 <br />15:55 <br />09:35 <br />Comment(s): <br />-The sample chromatographic pattern for TPH does not match the chromatographic pattern of the <br />specified standard. Quantitation <br />of the unknown hydrocarbon(s) in the sample was based upon the specified standard. <br />-The sample extract was subjected to Silica Gel treatment prior to analysis. <br />Parameter <br />Result RL DF Qual <br />Units <br />TPH as Diesel <br />950 250 5 <br />ug/L <br />Surrogates: <br />REC % Control Limits Qual <br />Decachlorobiphenyl <br />96 68-140 <br />RL -Reporting Limit , DF - Dilution Factor , Qual -Qualifiers <br />N" 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 9 FAX: (714) 894-7501 <br />