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,superior Pre cisidn Anafytica/ Inc_ <br /> t555 Burke,Unit I - San Francisco, California 94124 - (4151647-2081 (4 <br /> I$'821-7123 <br /> r <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 /> Vage 2 of 2 <br /> QA/QC INFORMATION „ <br /> SET: 12518 <br /> NA = ANALYSIS NOT REQUESTED <br /> ND = ANALYSIS <br /> erNOT <br /> Dll (ppb) <br /> ECTE ABOVE QUANTITATION LIMIT <br /> ug/l = part p <br /> OIL AND GREASEANALYSIS <br /> BY <br /> ndard Method04 Method 503E: <br /> Minimum Detection Limit <br /> Modified EPA­sw846 Method 8015 for Extractable Hydrocarbons: <br /> Minimum Quantitation Limit for Diesel in Water: 50ug/1 <br /> ,Standard Reference: NA <br /> EPA-SW846 Method 8015/5030 Total Purgable Petroleum Hydrocarbons: <br /> Minimum Quantitation Limit for Gasoline in Water: 50ug/1 <br /> Standard Reference: 07/23/91 <br /> '__�4-846 Method 8020/STXE <br /> Minimum Quantitation Limit in Water: O-Sug/1 <br /> Standard Reference: 06/13/91 l <br /> ANALYTE REFERENCE SPIKE LEVEL MS/MSD-RECOVERY RPD CONTROL----LIMIT 1i <br /> - - NA NA NA i <br /> Oil 6c Grease NA NA NA NA <br /> NA NA NA 1.0 59-121 <br /> Diesel 07/23/91 200ng 89/90 70--125 <br /> Gasoline 80/83 3.8 , <br /> Benzene 06/13/91 200ng 82/85 3.5 74-116 <br /> Toluene 06/13/91 200ng 79/81 2.9 75-120 <br /> Ethyl Benzene 06/13/91 200ng $7/90 3.3 75-119 <br /> Total Xylene 06/13/91 6OOng <br /> * Gasoline range concentration reported. A non-standard gasoline pattern <br /> Was observed in the chromatogram. <br /> Richard Srna, Ph.D. <br /> Labor tory Di ec or i <br /> Certified Laboratories <br />