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�TM@R <br /> Ground Zero Analysis,Inc. Project Number: 815 <br /> 1714 Main Street Project Name: Lionudakis Work Order No.: <br /> Escalon,CA 95320 Project Manager: Eric Price K002026 <br /> BTEX EPA Method 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 K000219-EPA 5030B <br /> i <br /> Blank(K000219-BLK1) Prepared&Analyzed:02/18/10 <br /> Surrogate:a,a,a-Triuorotoluene 0.0485 mg/kg 0.050 97 70-130 <br /> Benzene ND 0.005 <br /> Toluene ND 0.005 <br /> Xylenes(total) ND 0.010 " <br /> Ethylbenzene ND 0.005 " <br /> LCS(K000219-BSI) Prepared&Analyzed:02/18/10 <br /> Toluene 0.028 mg/kg 0.025 112 80-120 <br /> LCS Dup(K000219-BSD1) Prepared&Analyzed:02/18/10 <br /> Toluene 0.028 mg/kg 0.025 111 80-120 0.4 20 <br /> Matrix Spike(K000219-MS1) Source:K002026-05 Prepared&Analyzed:02/18/10 <br /> Benzene 0.028 mg/kg 0.025 ND 112 70-130 <br /> Matrix Spike Dup(K000219-MSDI) Source:K002026-05 Prepared&Analyzed:02/18/10 <br /> Benzene 0.030 mg/kg 0.025 ND 120 70-130 7 20 <br /> Appr wed By <br /> Argo i Laboratories,Inc. California D.O.H.S.Cert.#2359 <br /> 2905 Railroad Avenue, Ceres, CA 95307 e Phone (209) 581-9280 ® Fox (209) 581-9282 page 5 of 7 <br /> email: main@argonlabs.com <br />