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Page 6 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: 10-05-0022 <br /> Walnut Creek, CA 94596-3727 Preparation: EPA 35508 <br /> Method: EPA 8015B (M) <br /> Project: PG&E C-51 Tank Site / B0092341.0000.00001 Page 2 of 3 <br /> Lab Sample Date/Time Date Date/Time <br /> Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID <br /> C51-SB12-7.5-8.0 10-05-0022-4-A 04/29/10 Solid GC 43 05/04/10 05/05/10 1005041312 <br /> 13:30 19:32 <br /> -Results are reported on a dry weight basis. <br /> Parameter Result RL DF Qual Units <br /> TPH as Diesel ND 5.8 1 mg/kg <br /> Surrogates: REC % Control Limits Qual <br /> Decachlorobiphenyl 134 61-145 <br /> C51-SB13-5.5-6.0 10-05-0022-7-A 04/29/10 Solid GC 47 05/10/10 05/11/10 10051OB07 <br /> 09:45 00:22 <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 Diesel 14 5.5 1 mg/kg <br /> Surrogates: REC % Control Limits Qual <br /> Decachlorobiphenyl 105 61-145 <br /> C51-SB13-7.5-8.0 10-05-0022-8-A 04/29/10 Solid GC 47 05/10/10 05/11/10 10051OB07 <br /> 10:00 00:37 <br /> Results are reported on a dry weight basis. <br /> Parameter Result RL DF Qual Units <br /> TPH as Diesel ND 5.4 1 mg/kg <br /> Surrogates: REC % Control Limits Qual <br /> Decachlorobiphenyl 114 61-145 <br /> RL-Reporting Limit DF-Dilution Factor Qual-Qualifiers <br /> WA <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 FAX: (714) 894-7501 <br />