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4 <br /> Superior Precisicv7 .,,�a/ytica/, /nc. <br /> 825 Arnold Drive Suite 1 14 w Martinez California 94553 • JS 10) 229 1 512 / fax (5 10) 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 . 85292 <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 /> Nodified EPA-SW846 Method 8015 for Extractable Hydrocarbons - <br /> Minimum Quantitation Limit for Diesel in Water 50ud/L <br /> Standard Reference ISA <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 /> SW-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 RECO% ERY RPD CONTROL LIMIT <br /> Oil & Grease NA NA NA NA NTA <br /> Diesel NA N4 %1.1 N'4 NA <br /> Gasoline 03/03/92 200 ng 93/94 1 70-130 <br /> Benzene 02/26/92 200 ng 107/103 4 70-130 <br /> Toluene 02/26/92 200 ng 103/99 4 70--130 <br /> Ethyl Benzene 02/26/92 200 ng 100/97 3 70-130 <br /> Total 'iylene 02/26/92 200 nc 112/108 4 70-130 <br /> . Richard Srna, Ph D <br /> Laboratory Director r <br /> Certified Laboratories <br />