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PON <br /> .Stiperior Precisioa7 AnalYtical, Inc_ <br /> i 555 SurE:e. Unit I P San Frariasco, Cahforrnti 94 114 14 Z 51 647-2081 /fax,{4 15)82i.-7f23 <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: 12506 <br /> NA = ANALYSIS NOT REQUESTED <br /> ND = ANALYSIS NOT DETECTED ABOVE QUANTITATION LIMIT <br /> ug/1 = part per billion (ppb) <br /> OIL AND GREASE ANALYSIS By Standard Methods Method 543E: <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/1 <br /> Standard Reference: 07/23/91 <br /> SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Water! 0.5ug/1 <br /> Standard Reference: 06/13J91 <br /> ANALYTE REFERENCE SPIKE LEVEL MS/MSD-RECOVERY RPD CONTROL-LIMIT <br /> ------- NA NA NA NA <br /> oil & Grease NA NA NA NA NA <br /> i Diesel NA 103/104 0.5 59--121 <br /> 200n <br /> Gasoline 07/23/91 g 92/88 3.7 70-125 <br /> 46 13 91 200ng 2.5 74-i15 <br /> Benzene 06/13/91 200ng 92/89 75-120 <br /> Toluene 86 .99 0.8 <br /> Ethyl Benzene 06/13/91 200ng 97/95 2.0 75-119 <br /> Total Xylene 06/13/91 600ng <br /> Richard Srna, Ph.D. <br /> &oraAor ?DeC-cor <br /> Certified laboratories <br />