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'C <br /> SUPERIOR ANALYTICAL LABORATORIES, INC. <br /> 825 ARNOLD,STE. 114 - MARTINEZ.CAUFORNV.94553-(415) 229-1512 DONS #319 <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: 83562 <br /> NA = ANALYSIS NOT REQUESTED <br /> ND = ANALYSIS NOT DETECTED ABOVE QUANTITATION LIMIT <br /> ug/1 = part per billion (ppb) <br /> OIL AND GREASE ANALYSIS By Standard Methods Method 503E: <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: 06/26/91 <br /> _._ SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Water"! 0:5ug!l <br /> Standard Reference: 07/08/91 <br /> ANALYTE REFERENCE SPIKE LEVEL MS/MSD RECOVERY RPD CONTROL LIMIT <br /> ------- ------- ----------- ----- ------ - ------ I. <br /> Oil & Grease NA NA NA NA NA <br /> Diesel NA NA NA NA NA <br /> Gasoline 06/26/91 200 ng 94/95 1 70-130 <br /> Benzene 07/08/91 200 ng 105/109 4 70-130 <br /> Toluene 07/08/91 200 ng 104/109 4 70-130 <br /> Ethyl Benzene 07/08/91 200 ng 108/112 4 70-130 <br /> Total Xylene 07/08/91 200 ng 103/106 3 70-130 <br /> Richard Srna, Wi.D. <br /> y Laboratory Director <br /> OUTSTANDING QUALITY AND SERVICE <br />