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j Superior Precisibn .lnaly ical, Inca <br /> . # 825 Arnold Drive, Suite 114 • Martinez. California 44553 a (51 OJ 229-1512/Fax (51 OJ 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 3 of 3 <br /> QA/QC INFORMATION <br /> SET: 84474 <br /> NA = ANALYSIS NOT REQUESTED <br /> ND = ANALYSIS NOT DETECTED ABOVE QUANTITATION LIMIT <br /> mg/kg = part per :ni 11 i on (ppm) <br /> OIL AND GREASE ANALYSIS By Standard Methods Method 552OF: <br /> Minimum Detection Limit in Soil : 50mg/kg <br /> Modified EPA-SW846 Method 8015 for Extractable Hydrocarbons: <br /> Minimum Quantitation Limit for Diesel in Soil : 1mg/kg <br /> Standard Reference: NA <br /> EFTA-SW846 Method 8015/5030 Total Purgable Petroleum Hydrocarbons: <br /> . Minimum Quantitation Limit for Gasoline in Soil : lmg/kg I <br /> Standard Reference: 10/04/91 <br /> SW-846 Method 8620/BTXE <br /> Minimum Quantitation Limit in Soil : 0.005mg/kg <br /> Standard Reference: 10/11/91 <br /> ANALYTE REFERENCE SPIKE LEVEL MS/MSD RECOVERY RPD CONTROL LIMIT <br /> Oil 8 Grease NA NA NA NA NA <br /> Diesel NA NA NA NA NA <br /> Gasoline 10/04/91 200 ng 93/97 4 70-130 <br /> Benzene 12/02/91 200 ng 87/84 4 70-130 <br /> Toluene 12/02./91 200 ng 94/89 5 70-130 <br /> Ethyl Benzene 12/02/91 200 ng 88/89 1 70.130 <br /> Total Xylenes 12/02/91 200 ng 100/100 0 70-130 <br /> Richard Srna, Ph .D. <br /> Laboratory Dire r <br /> Certified Laboratories <br />