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Superior Precision Ana/yticat Inc. <br /> 825 Arnold Drive. Suite 1 14 • Martinez. California 94553 • (510) 229-1.512/fax (5 10) 229-1526 <br /> C E R T I F I C A T E 0 FA 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 /> 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 /> SW-846 Method 8020/BT.XE <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 /> Oil & Grease NA NA NA NA NA <br /> Diesel NA NA NA NA 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 ?xylene 02/26/92 200 ng 11.2/108 4 70-130 <br /> Richard Srna, Ph. D. <br /> Laboratory Director <br /> Certified Laboratories <br />