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4 <br /> Superior Precision .Analytical, Inc. <br /> ^ 825 Arnold Drive Suite 1 14 - Martinez California 9.4553 ■ (510) 229-1512 /fax (5)0) 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 1 <br /> QA/QC INFORMATION <br /> SET: 85648 <br /> NA = ANALYSIS NOT REQUESTED <br /> ND = ANALYSIS NOT DETECTED ABOVE QUANTITATION LIMIT <br /> ug/L = parts per billion (ppb) <br /> OIL AND GREASE ANALYSIS By Standard Methods Method 5520F: <br /> Minimum Detection Limit in Water: 5000ug/L <br /> Modified EPA SW-846 Method 8015 for Extractable Hydrocarbons: <br /> Minimum Quantitata-on Limit for Diesel in Water: 50ug/L <br /> EPA SW-846 Method 8015/5030 Total Purgable Petroleum Hydrocarbons : <br /> 0 Minimum Quantitation Limit for Gasoline in Water: 50ug/L <br /> EPA SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Water: 0 . 5ug/L <br /> ANALYTE SPIKE LEVEL MS/MSD RECOVERY RPD CONTROL LIMIT <br /> Gasoline: 200 ng 97/96 1 70-130 <br /> Benzene: 200 ng 94/95 1 70-130 <br /> Toluene: 200 ng 104/104 0 70-130 <br /> Ethyl Benzene: 200 ng 108/107 1 70-130 <br /> Xylenes : 200 ng 109/109 0 70-130 <br /> Richard Srna, Ph. D. <br /> af <br /> aboratory Dire <br /> Certified Laboratories <br />