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Superior Precisionn ,,oOna/ytical, Inc. <br /> 1555 Burke Unit I • San Francisco California 94124 ■ (4 15) 647-2081 / fax (4 15) 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 2 of 2 <br /> QA/QC INFORMATION <br /> SET: 14713 <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 /> PA SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Soil: 0. 005mg/kg <br /> ANALYTE MS/MSD RECOVERY RPD CONTROL LIMIT <br /> --------------- --------------- --- ------------- <br /> Gasoline: 94/93 1% 75-111 <br /> Benzene: 106/107 1% 72-105 <br /> Toluene: 103/103 0$ 75-111 <br /> Ethyl Benzene: 103/103 0% 78-110 <br /> Xylenes: 102/102 0% 69-117 <br /> Diesel: 111/113 2% 75-125 <br /> Oil and Grease: 66/64 3% 47-97 <br /> P".1vilw 0 - <br /> Senior Che st <br /> Account Manager <br /> Certified Laboratories <br />