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O Superior Precision Ana/ytica/, Inc. <br /> 1555 Burke, Unit I • San Francisco, California 94124 • (4 15) 647-2081 /fax )415) 7 <br /> _PlVIRONMENTAL HEALTH <br /> F"'P ITISMICLO <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: 56219 <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 Quantitation Limit for Diesel in Water: 50ug/L <br /> EPA SW-846 Method 8015/5030 Total Purgable Petroleum Hydrocarbons: <br /> Minimum Quantitation Limit for Gasoline in Water: 50ug/L <br /> EPA SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Water: 0. 3ug/L <br /> ANALYTE MS/MSD RECOVERY RPD CONTROL LIMIT <br /> --------------- --------------- --- ------------- <br /> Diesel: 86/88% 2 75-125 <br /> Gasoline: 93/94% 1 76-111 <br /> Benzene: 98/99% 1 78-110 <br /> Toluene: 101/105% 4 78-111 <br /> Ethyl Benzene: 104/104% 0 78-118 <br /> Xylenes: 99/100% 1 73-113 <br /> Richard Srna, Ph.D. <br /> R Al <br /> Labor4tory Direto <br /> Certified Laboratories <br />