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iV 'I <br /> Superior P ecision Ana/ ical Inc. <br /> p w <br /> A member of ESSCQN Environmental Support Service Consortium <br /> C E R T I F I C A T E O F A N A L Y S Iis <br /> ANALYSIS FOR TOTAL PETROLEUM HYDROCARBONS <br /> Page 2 of 2 <br /> QA/QC INFORMATION <br /> SET: 30681 <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: 50u4,/L <br /> CPA SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Water: 0 .5ug/L <br /> ANALYTE MS/MSD RECOVERY RPD CONTROL LIMIT <br /> ---'---- <br /> Gasoline : 128/124 30 70-130 <br /> Benzene : 118/117 1% 70-130 <br /> Toluene : 110/96 1401 70-130 <br /> Ethyl Benzene : 78/70 110 70-130 <br /> Total Xylenes : 83/92 100 70-130 <br /> Senior Chemist <br /> Certified Laboratories <br /> 825 Arnold Dr., Suite 1 14 Martinez, California 94553 - (510) 313-08SO / Fax (51� 01229-1526 <br />