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Superior Precisic?n Ana/ytica/, Inc_ <br /> 41 825 Arnold Drive Suite 1 14 - Martinez California 94553 - (5 10) 229-15 12 / fax (51 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 2 <br /> QA/QC INFORMATION <br /> SET 85231 <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 552OF <br /> Minimum Detection Limit in Water = 5000ug/L <br /> Modified EPA-SW846 Method 8015 for Extractable Hydrocarbons <br /> Minimum Quantitation Limit for Diesel in Water 50ug/L <br /> Standard Reference NA <br /> EPA-SW846 Method 8015/5030 Total Purgable Petroleum Hydrocarbons . <br /> Minimum Quantitation Limit for Gasoline in Water 50ug/L <br /> Standard Reference. 10/04/91 <br /> foW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Water 0 5ug/L <br /> Standard Reference 10/11 /91 <br /> ANALYTE REFERENCE SPIKE LEVEL MS/MSD RECOVERY RPD CONTROL. LIMIT <br /> 011 & Grease NA NA NA NA NA <br /> Diesel NA NA NA NA NA <br /> Gasoline 03/03/92 200 ng 99/97 2 70- 130 <br /> Benzene 02/26/92 200 ng 89/88 1 70- 130 <br /> Toluene 02/26/92 200 ng 97/97 0 70-130 <br /> Ethyl Benzene 02/26/92 200 ng 102/ 100 2 70- 130 <br /> Total Xylene 02/26/92 200 ng 113/112 1 70-130 <br /> * Gasoline range concentration reported The chromatogram showed <br /> only a single peak in the gasoline range <br /> Richard Srna , Ph D <br /> J <br /> Laboratory Director <br /> I I lilit� I jr) }' 11IIIc S <br />