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F Superior Pre c:iS%on Anaiyticai, A Yc Po <br /> 1555 Burke, Unit I • San Francisco, California 94124 (415) 647-208 1 / 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 /> ANALYSIS FOR TOTAL PETROLEUM HYDROCARBONS <br /> Page 4 of 4 <br /> QA / QC INFORMATION <br /> SET : 15540 <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 /> Minimum Quantitation Limit for Gasoline in Water : 50ug / L <br /> EPA SW- 846 Method 8020 / BTXE <br /> Minimum Quantitation Limit in Soil : 0 . 005mg / kg <br /> Minimum Quantiataion Limit in Water : 0 . 5ug / L <br /> ANALYTE MS / MSD RECOVERY RPD CONTROL LIMIT <br /> Gasoline_Range : 96 / 88 9 % 55 - 141 <br />! Benzene : 85 / 85 0 % 67 - 141 <br /> Toluene : 87 / 87 0 % 67 - 141 <br /> Ethyl Benzene : 80 / 80 0 % 67 - 141 <br /> Total Xylenes : 83 / 84 1 % 67 - 141 <br /> Diesel : 91 / 98 7 % 50 - 150 <br /> Oil and Grease : 94 / 89 5 % 50 - 150 <br /> Seni r Chemist <br /> Certified Laboratories Account Manager <br />