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O Superior precision Analytical, Inc. <br /> 1555 Burke Unit I ■ San Francisco California 94124 • (415) 647-2081 /fax (415) 8217123 <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: 14443 <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 /> SPA SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Water: 0. 5ug/L <br /> ANALYTE MS/MSD-RECOVERY RPD CONTROL-LIMIT <br /> Gasoline: 106/105 1% 76-111 <br /> Benzene: 96/90 6% 78-110 <br /> Toluene: 100/94 6% 78-111 <br /> 100 6% 78-118 <br /> 106 <br /> Ethyl Benzene: / <br /> Xylenes: 101/97 4% 73-113 <br /> Richard, SSrrn/a, Ph.D. <br /> Lab atony Dii0ectar <br /> Certified Laboratories <br />