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0Superior precision Ina/ytical,, Inc. <br /> 825 Arnold Drive .Suite 1 14 • Martinez California 94553 . (510) 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: 88499 <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 . 003mg/kg <br /> ANALYTE MS/MSD RECOVERY RPD CONTROL LIMIT <br /> -- ----- -- ------ --------------- --- -- ------ - _- -- - <br /> Gasoline 98/96 20 70-130 <br /> Benzene 97/1.01 4% 70-1.30 <br /> Toluene 105/107 206 70-130 <br /> Ethyl Benzene : 109/111 2% 70-130 <br /> Xylenes 107/110 30 70-130 <br /> Diesel 108/108 00-. 75-125 <br /> Richard Srna, Ph D <br /> d'—',,G A 0,V, 4,� I� Com) <br /> Laboratory Direc or <br /> Certified Laboratories <br />