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Superior Pre&ion ulna/ytical. I&. <br /> 825 Arnold Drive, Suite 1 14 Martinez, California 94553 - (5 10) 229-1512/fax (S 10) 229-1526 <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: 87656 <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 /> EPA SW-846 Method 8015/5030 Total Purgable Petroleum Hydrocarbons: <br /> Minimum Quantitation Limit for Gasoline in Soil: lmg/kg <br /> EPA SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Soil : 0 . 005mg/kg <br /> ANALYTE MS/MSD RECOVERY RPD CONTROL LIMIT <br /> --------------- --------------- --- ------------- <br /> Gasoline: 91/90 170-130 <br /> Benzene: 95/97 2% 70-130 <br /> Toluene : 104/104 0% 70-130 <br /> Ethyl Benzene: 108/107 170-130 <br /> Xylenes : 106/105 170-130 <br /> Ri rd Srna h.D <br /> L <br /> orato Director <br /> Certified Laboratories ' <br />