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Page 10 of 33 <br /> alscience <br /> �_nvironmental Analytical Report <br /> aboratories, Inc. <br /> Arcadis US, Inc. Date Received: 05/01/10 <br /> 2033 North Main Street, Suite 340 Work Order No: 10-05-0026 <br /> Walnut Creek, CA 94596-3727 Preparation: EPA 5030B <br /> Method: EPA 8015B (M) <br /> Project: PG&E C-51 Tank Site / B0092341.0000.00001 Page 2 of 4 <br /> Lab Sample Date/Time Date Date/Time <br /> Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID <br /> F <br /> 64-5.5-6.0 10-05-0026-5-A 04/28/10 Solid GC4 05/04/10 05/05/10 1005041302 <br /> 11:10 05:34 <br /> Comment(s): -The sample chromatographic pattern for TPH does not match the chromatographic pattern of the specified standard. Quantitation <br /> of the unknown hydrocarbon(s)in the sample was based upon the specified standard. <br /> -Results are reported on a dry weight basis. <br /> Parameter Result RL DF Qual Units <br /> TPH as Gasoline 990 110 200 mg/kg <br /> Surrogates: REC % Control Limits Qual <br /> 1,4-Bromofluorobenzene 96 42-126 <br /> C51-SB4-7.5-8.0 10-05-0026-6-A 04/28/10 Solid GC 4 05/04/10 05/05/10 100504602 <br /> 11:15 06:07 <br /> Comment(s): -The sample chromatographic pattern for TPH does not match the chromatographic pattern of the specified standard. Quantitation <br /> of the unknown hydrocarbon(s)in the sample was based upon the specified standard. <br /> -Results are reported on a dry weight basis. <br /> Parameter Result RL DF Qual Units <br /> TPH as Gasoline 1000 110 200 mg/kg <br /> Surrogates: REC % Control Limits Qual <br /> 1,4-Bromofluorobenzene 98 42-126 <br /> C51-SB5-1.5-2.0 10-05-0026-7-A 04/28/10 Solid GC 4 05/04/10 05/04/10 100504801 <br /> 10:25 21:19 <br /> Results are reported on a dry weight basis. <br /> Parameter Result RL DF Qual Units <br /> TPH as Gasoline ND 0.58 1 mg/kg <br /> Surrociates: REC % Control Limits Qual <br /> 1,4-Bromofluorobenzene 79 42-126 <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 />