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Superior Precision ,.00"a/ytica/, Inc_ <br /> 825 Arnold Drive, Suite 1 14 Martinez, California 94553 (5 10) 229-1512/fax (510) 229-1526 <br /> G <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: 84260 <br /> NA = ANALYSIS NOT REQUESTED <br /> ND = ANALYSIS NOT DETECTED ABOVE QUANTITATION LIMIT <br /> ug/L = 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 1 <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 /> r <br /> ANALYTE REFERENCE SPIKE LEVEL MS/MSDRECOVERY RPD CONTROL LIMIT <br /> - - - <br /> Oil & Grease NA NA NA NA NA <br /> Diesel NA NA NA NA NA. <br /> Gasoline 10/04/91 200 ng 94/96 2. .70-130 <br /> Benzene 10/11 /91 200 ng 86/83 4 70-130 <br /> Toluene 10/11 /91 200 ng 86/84 2 70-130 <br /> Ethyl Benzene 10/11 /91 200 ng 88/86 2 70-130 <br /> Total Xylenes 10/11/91 200 ng 100/97 3 70-130 <br /> Richard Srna, Ph . D. <br /> Laboratory Director <br /> Certified Laboratories <br />