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Superior Precision �4nalytica/, Inc. <br /> ^ 1555 Burke Unit I • San Francisco California 94124 • (415) 647-2081 /fax (415) 821-7123 <br /> C E R T I F I C A T E O F A N A L Y S I S <br /> i <br /> ANALYSIS FOR TOTAL PETROLEUM HYDROCARBONS <br /> Page 2 of 2 <br /> QA/QC INFORMATION <br /> SET: 30140 <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 801.5 for Extractable Hydrocarbons: <br /> Minimum Quantitation Limit for Diesel in Soil: Ing/kg <br /> EPA SW-846 Method 8015/5030 Total Purgable Petroleum Hydrocarbons: <br /> Minimum Quantitation Limit for Gasoline in Soil: lmg/kg <br /> JOEPA SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Soil: 0. 005mg/kg <br /> ANALYTE MS/MSD RECOVERY RPD CONTROL LIMIT <br /> Gasoline: 114/118 3% 75-125 <br /> Benzene: 100/100 0% 72-125 <br /> Toluene: 96/97 1% 75-125 <br /> Ethyl Benzene: 94/96 2% 75-125 <br /> Total Xylenes: 101/104 3% 75-125 <br /> ' � 4 Al <br /> Senior Ch ist <br /> Certified Laboratories Account Manager <br />