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s.. <br /> Superior PreCIS%on Ar7a4lt!Cal, /r7C_ <br /> fl i 825 rvnUa Drne. SLjrte 1 14 Martinez. California 94553 - 15 10)229.1512/tax 151OJ 229.1525 <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: 83898 <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-SW646 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: 06/26/91 <br /> SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Water: 0.5ug/L <br /> _ Standard Reference: 07/08/91 <br /> ANALYTE REFERENCE SPIKE LEVEL MS/MSD RECOVERY RPD CONTROL LIMIT <br /> --------- <br /> ----------- --------------- ---- -------------- <br /> rw, Oil & Grease NA NA NA NA NA <br /> Diesel NA NA NA NA NA <br /> i ; Gasoline 06/26/91 200 ng 91/90 1 70-130 <br /> Benzene 07/08/91 200 ng 92/91 2 70-130 <br /> Toluene 07/08/91 200 ng 96/96 0 70-130 <br /> Ethyl Benzene 07/08/91 200 ng 101/101 0 70-130 <br /> Total Xylene 07/08/91 200 ng 98/98 0 <br /> 70-130 <br /> J <br /> RigoDi <br /> Ph.O. E <br /> Larector { <br /> v <br /> Cern led Laboratories <br /> f <br /> i <br /> f <br /> i <br />