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1 <br /> Superior PreC%S%On Analytical, Inc. <br /> 1555 Burke Unit I ■ San Francisco California 94124 • (415) 647-2081 /fax (4 15) 821-71.23 <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: 56627 <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 /> OPA 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 /> Gasoline: 77/78 1% 75-111 <br /> Benzene: 78/78 0% 75-114 <br /> Toluene: 86/88 2% 78-114 <br /> Ethyl Benzene: 93/96 3% 76-120 <br /> Xylenes: 88/91 3% 71-117 <br /> Diesel: 108/110 1% 34-131 <br /> Richard Srna, Ph. <br /> Laboratory Director <br /> d <br /> a <br /> Certifies! Laboratories <br />