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amw ' twws2905 Railroad Ave. Ceres,CA 95307 (209)581-9280 Fax(209)581-9282 <br /> Stockton Service Project Number 2514 Juliet Rd <br /> N/A Project Project Name: Private Home Work Order No.: <br /> Stockton,CA N/A <br /> Project Manager: Don Light H70I051 <br /> TPH-gas BTX&E EPA Method 8015M/8021B-Quality Control <br /> Argon Laboratories <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch HQB0027-EPA 5030H <br /> Blank(HQB0027-BLK1) Prepared&Analyzed:01/31/07 <br /> Surrogate:a,a,a-TrPuom1o1uene 0.0455 mg kg 0.0500 9/ 70-130 <br /> Total Petroleum Hydrocarbons g Gasoline ND 1.0 " <br /> Benzene ND 0.005 " <br /> Toluene ND 0.005 " <br /> Xylcnes(toml) ND 0.010 " <br /> Ethylbenzene ND 0,005 " <br /> LCS(HQB0027-BS1) Prepared&Analyzed:01/31/07 <br /> Benzene 0.044 0.005 mg/kg 0.0500 88 80-120 20 <br /> Matrix Spike(HQB0027-MSI) Source:H701052-12 Prepared&Analyzed:01/31/07 <br /> Total Peholcum Hydrocarbons 0 Gasoline 2.1 In mg/kg 2.00 ND 105 70-130 20. <br /> Matrix Spike Dup(HQB0027-MSD1) Source:H701052-12 Prepared&Analyzed:01/31/07 <br /> Total Petroleum Hydrocarbons a Gasoline 22 1.0 mg/kg 2.00 ND 110 70-130 5 20 <br /> Approved By <br /> Argon Laboratories,Inc. Califomia D.O.H.S.Cert.#2359 <br /> Page 7 of 8 <br />