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A N A L Y T I CTA L <br /> LABORATORIES <br /> Certificate of Analysis <br /> C,oln Ll-Tecll Geotechnical Services Report Issue Date 05/11/99 <br /> 10624 Olive Avenue <br /> ucakdale, CA 95361 <br /> bmission Number 9904000746 Sample Date 04/28/99 <br /> Lab Number109524 Sample Time 12 16 <br />(�.rroject <br /> )ect Number GW Monitoring Sample Type LIQUID <br /> Desc George's Service <br /> mple Description MW-1 <br />' BSK LABORATORIES LUFT ANALYSIS <br /> Date Date <br /> Method Analyte Prep Anal Result Units PQL DiI DLR <br /> PA 8015 / Benzene 05/02/99 05/02/99 11 dig/L 0 3 1 0 3 <br /> PA 8020 <br /> (MODIFIED) <br /> PA 8015 / Ethylbenzene 05/02/99 05/02/99 3 0 jig0 3 1 D 3 <br /> PA 8020 <br /> fJ <br /> 1 <br /> ODIFLED) <br /> 5 / Toluene 05/02/99 05/02/99 058 µg/L 0 3 1 <br /> EPA 8020 03 <br />(1 OD IFIED) <br /> PA 8015 / Xylenes, Total 05/02/99 05/02/99 78 <br /> EPA 8020 Mcg/L 0 3 1 03 <br />(PODEFIED) <br /> A 8015 / Gasoline 05/02/99 05/02/99 94 - <br /> EPA 8020 �g/L 50 1 50 <br />(PODIFIED) <br /> A 8015 / Methyl-tert-Butyl 05/02/99 05/02/99 ND Mcg/L 5 1 5 <br /> EPA 8020 Ether <br /> rODIFIED) <br /> None Detected PQL Practical Quantitation Limit Conversions <br /> ng/L Milligrams/Liter — ppm Dil Dilution Factor 1 ppm = 1000 ppb <br /> r�,llt)/L Micrograms/Liter = ppb DLR Reportable Detection Limit 1 ppb = 0 001 ppm <br /> /lig Milligrams/Kilogram = ppm derived by (PQL e Dil) <br /> xg/ Micrograms/Kilogram = ppb Higher limits may result from exceptional sample matrices or interferences <br /> 1414 Stanislaus Street • Fresno, CA 93706-1623 • Phone 559-497-2888, In CA 800-877-8310 • Fax 559-485-6935 <br />