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SUPERIOR ANALYTICAL LABORATORY, INC <br /> 1555 BURKE UNIT I . SAN FRANCISCO CA 94124 • PHONE (415) 647-2081 DOHS #1332 <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: 11408 <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/1 <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. 08/24/90 <br /> SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Water: 0. 5ug/l <br /> Standard Reference: 01/09/91 <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 01/09/91 200ng 78/93 18 75-1.25 <br /> Benzene 01/09/91 200ng 87/87 0 . 6 75-130 <br /> Toluene 01/09/91 200ng 85/87 2 75-130 <br /> Ethyl Benzene 01/09/91 200ng 86/90 5 75-130 <br /> Total Xylene 01/09/91 600ng 87/89 2 75-130 <br /> Ric d Srna,Wecto• <br /> a oratory D <br /> OUTSTANDING QUALITY AND SERVICE JAN 3 0 1991 <br />