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Superior precision arnalytical, /nc. <br /> A member of ESSCON Environmental Support Service Consortium <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: 15612 <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 /> �NALYTE MS/MSD RECOVERY RPD CONTROL LIMIT <br /> Gasoline Range: 91/95 4% 55-141 <br /> Benzene: 80/85 6% 67-141 <br /> Toluene: 83/85 2% 67-141 <br /> Ethyl Benzene: 75/75 0% 67-141 <br /> Total Xylenes: 83/83 0% 67--141 <br /> Se Cmist <br /> Acco t Manager <br /> 0 <br /> Certified Laboratories <br /> 1555 Burke St Unit 1 San Francisco California 94124 ■ f4 15) 647-2081 / fax (4 15) 821-7123 <br />