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Superior PreC%SiOf7 Ana/Vtica/,. If <br /> 825 Arnold Dave Suite 1 14 - Martinez California 94553 - (510) 229-1512/fax (S 10) 229-1526 <br /> Ad <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 89155 <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 10mg/kg <br /> EPA SW-846 Method 801.5/5030 Total Purgable Petroleum Hydrocarbons <br /> Minimum Quantitation Limit for Gasoline in Soil 1mg/kg <br /> EPA SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Soil. 0 003mg/kg <br /> ANALYTE MS/MSD RECOVERY RPD CONTROL LIMIT <br /> - ------- --- ---- --------------- - -- -- ----------- ) <br /> Gasoline 88/83 60 70-130 <br /> Benzene 108/113 50-. 70-130 a� <br /> Toluene 110/118 70-. 70-130 <br /> Ethyl Benzene 113/118 40 70-130 <br /> Xylenes 114/119 40-o 70-130 <br /> Richard Sr a, Phl <br /> Laboratory Director , <br /> Certified Laboratories <br />