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f 4 <br /> YOYAJIAN & ROSS, INC. <br /> A N ' A L Y T I CAL r LmTM s-�::2 _ <br /> LABORATORIEScommuffS <br /> Certificate of Analysis <br /> Calvin Erdman <br /> Boyajian and Ross Report Issue Date 08/25/98 <br /> 1320 E. Shaw, Suite 155 <br /> Fresno, CA 93710- Sample Date 08/05/98 <br /> Submission Number 9808000134 - Sample Time 07:05 <br /> Lab Number 72503 Sample Type SOLID <br /> y <br /> Project Number 48117 <br /> Protect Desc. <br /> Sample Description S-009 <br /> 13SK LABORATORIES LUFr ANALYSIS <br /> Date -w Date ' <br /> Method Analyte Prep. Anal. Result Units PQL. Dil DLR.1- <br /> EPA 8015/ Benzene 08/11/98 08/11/98 ND mg/Kg 0.005 1 0.005 <br /> EPA 8020 <br /> EPA 8015/ Ethylbcnzene 08/11/98 08/11/98 ND mg/Kg 0.005 1 0.005 j <br /> EPA 8020 <br /> EPA 8015/ Toluene 08/11/98 08/11/98 ND mg/Kg 0.005 1 0.005 <br /> EPA 8020 <br /> EPA 8015/ Xylenes,Total 08/11/98 08/11/98 ND mg/Kg 0.005 1 0.005 <br /> EPA 8020 <br /> EPA 8015/ Gasoline 08/11/98 08/11/98 ND mg/Kg 1 1 1 <br /> EPA:8020 <br /> J�� <br /> EPA'8015/ Methyl-tert-Butyl 08/11/98 08/11/98 ND mg/Kg 0.05 1 0.05 <br /> EPA 8020 Ether <br /> N <br /> ND None Detected PQ L .Practical Quantitation Limit Conversions: <br /> mg/L Milligrams/Liter — ppm Dil ' Dilution Factor 1 ppm = 1000 ppb <br /> ,ug/L Micrograms/Liter — ppb DLR Reportable Detection Limit 1 ppb = 0.001 ppm <br /> mg/kg Milligrams/Kilogram — ppm derived by{PQL x Dil} <br /> ,ug/kg Micrograms/Kilogram — ppb Higher limits may result from exceptional sample matrices or interference <br /> 1414 Stanislaus Street ' Fresno, CA 93706-1623 ' 'Phone'209-497-2888, In CA 800-877-8310 0 Fax 209-485-6935 �� <br />