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El <br /> Superior Precisicpn Ana/ytica/, Inc. <br /> 825 Arnold Drive Suite 1 14 ■ Martinez California 94553 • (5 10) 229-15 12 / fax (51 of 229-1526 <br /> 18 i <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: 88634 <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 8025 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 /> ANALYTE MS/MSD RECOVERY RPD CONTROL LIMIT <br /> -- ---- - -------- ------ --------- --- -- ----------- <br /> Gasoline 100/89 12% 70-130 <br /> Benzene 78/68 140-o 70-130 <br /> Toluene . 84/74 130 70-130 <br /> Ethyl Benzene 88/78 12% 70-130 <br /> Xylenes - 110/97 13`s 70-130 <br /> Richard Srna, Ph.D <br /> Labor ory Di_ ector <br /> Certified Laboratories <br />