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Superior Precision .analytical. Inc. <br /> �I 825 Amold Drn e Suite 1 14 - Martinez California 94553 • if- i l)) 229-1 51 2 / fax {510 229V15Zt <br /> C E R T I F I C A T E O F A N A L Y S I S <br /> ANALYSIS FOR TOTAL PETROLEUM HYDROCARBONS <br /> Page 2 of 2 <br /> QA/QC INFORMATION <br /> SET 85725 <br /> NA = ANALYSIS NOT REQUESTED <br /> ND = ANALYSIS NOT DETECTED ABOVE QUANTITATION LIMIT <br /> mg/kg = parts per million (ppm) <br /> OIL AND GREASE ANALYSIS By Standard Methods Method 5520F: <br /> Minimum Detection Limit in Soil : 50mg/kg <br /> Modified EPA SW-846 Method 8015 for Extractable Hydrocarbons : <br /> Minimum Quantitation Limit for Diesel in Soil : lmg/kg <br /> *A SW-846 Method 8015/5030 Total Purgable Petroleum Hydrocarbons : <br /> Minimum Quantitation Limit for Gasoline in Soil ling/kg <br /> EPA SW-846 Method 8020/BTXE <br /> Minimun Quantitation Limit in Soil : 0 005mg/kg <br /> ANALYTE SPIKE-LEVEL MS/MSD-RECOVERY RPD CONTROLLIMIT <br /> Gasoline 200 ng 94/94 0 70-130 <br /> Benzene, 200 ng 91/90 1 70-130 <br /> Toluene: 200 ng 100/101 1 70-130 <br /> Ethyl Benzene: 200 ng 111/114 2 70-130 <br /> Xylenes 200 ng 101/103 2 70-130 <br /> Richard Srna, Ph.D. <br /> ALaoratory Dar ct r <br /> Cerrned La.or�rorics <br />