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Superior Precisior7 Analytical. Inc. <br /> :i 1 555 Burke Unit I ■ San Francisco California 94124 • (41 5) 647-2081 / fax (41 5) 8217123 <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: 12733 <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: 5000 q/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 : 10/12/91 <br /> �W-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Water : 0 . 5ug/l <br /> Standard Reference - 11/29/91 <br /> ANALYTE REFERENCE SPIKE-LEVEL MS/MSD-RECOVERY RPD CONTROLLIMIT <br /> NA NA NA <br /> 0i1 & Grease NA NA NA NA NA <br /> Diesel NA NA <br /> 101J102 1 . 6 59-121 <br /> Gasoline 11/29/91 200ng 93/98 5 . 5 70-125 <br /> Benzene 11/29/91 200ng 9 <br /> 2J96 4 . 0 74-116 <br /> Toluene 11/29/91 200ng 90/94 4 . 5 75-120 <br /> Ethyl Benzene 11/29/91 200ng 97/102 4 . 8 75-119 <br /> Total Xylene 11/29/91 600ng <br /> Richard Sr. Ph.D. \ <br /> Laboratory rector <br /> � L <br /> Certified Laboratories <br />