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oys@[m laboratories <br /> Ground Zero Analysis,Inc. Project Number: 594 <br /> 1714 Main Street Project Name: Wilbur-Ellis Work Order No.: <br /> Escalon,CA 95320 Project Manager: Greg Stahl X H711016 <br /> TPH-gas BTX&E EPA Method 8015M 18021B-Quality Control <br /> Argon Laboratories i <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> N <br /> Batch HQK0104-EPA 5030B <br /> Blank(HQK0104-BLKI) Prepared&Analyzed: 11/12/07 <br /> Surrogate:a,a,a-Trifluoro[oluene 47.5 u glL 50.0 95 70-130 <br /> Total Petroleum Hydrocarbons@ Gasoline ND 50 <br /> Benzene ND 0.5 " <br /> Toluene ND 0.5 " <br /> Xylenes(total) ND 1.0 " <br /> Ethylbenzene ND 0.5 <br /> LCS(HQK0104-BSI) Prepared&Analyzed: I IA 2/07 <br /> Total Petroleum Hydrocarbons@ Gasoline 1100 ug/L 1000 110 80-120 <br /> Matrix Spike(HQK0104-MSI) Source:H711022-01 Prepared&Analyzed: 11/12/07 i <br /> Benzene 21 ug/L 25.0 ND 84 70-130 <br /> I <br /> Matrix Spike Dup(HQK0104-MSD1) Source:H711022-01 Prepared&Analyzed: 11/12/07 <br /> Benzene 24 ug/L 25.0 ND 96 70-130 13 20 <br /> Batch HQK0117-EPA 5030B ! <br /> i <br /> Blank(HQK0117-BLKI) Prepared&Analyzed: 11/]3/07 <br /> Surrogate:a,a,a-Tryluorotoluene 0.0450 mg/kg ' 0.0500 90 70-130 <br /> Total Petroleum Hydrocarbons@ Gasoline ND 1.0 <br /> Benzene ND 0.005 " <br /> Toluene ND 0.005 " <br /> Xylenes(total) ND 0.010 I <br /> I <br /> Ethylbenzene ND 0.005 <br /> i <br /> LCS(HQK0117-BSI) Prepared&Analyzed: 11/13/07 <br /> Total Petroleum Hydrocarbons@ Gasoline 1.10 mg/kg 1.00 110 80-120 ' <br /> i <br /> Matrix Spike(HQK01 17-MS 1) Source: H711016-01 Prepared&Analyzed: 11/13/07 <br /> Benzene 0.022 mg/kg 0.0250 ND 88 70-130 <br /> Matrix Spike Du (HQK0117-MSD1) Source:H711016-01 Prepared&Analyzed: 11/13/07 <br /> Benzene 0.024 mg/kg 0.0250 ND 96 70-130 9 20 <br /> i <br /> I <br /> I <br /> Appi oved By <br /> Arg n Laboratories,Inc. California D.O.H.S.Cert.#2359 <br /> 2905 Railroad Avenue, Ceres, CR 95307 • Phone (209) 581-9280 • Fax (209) 581-9282 Page 7 of 8 <br /> emoil: info@argonlabs.com <br />