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Superior Precision Ana/ytica/, Inc- <br /> 825 Arnold Drive Suite 1 14 ■ Martinez California 94553 ■ (5 10) 229 151 2 / fax 151 0) 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 2 of 2 <br /> QA/QC INFORMATION <br /> SET- 84798 <br /> NA = ANALYSIS NOT REQUESTED <br /> ND = ANALYSIS NOT DETECTED ABOVE QUANTITATION LIMIT <br /> ug/L = parts per billion (ppb) <br /> OIL AND GREASE ANALYSIS By Standard Methods Method 5520F ' <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/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 10/04/91 <br /> SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Water 0 . 5ug/L <br /> Standard Reference : 10/11/91 <br /> ANALYTE REFERENCE SPIKE LEVEL MS/MSD RECOVERY RPD CONTROL LIMIT <br />' ------- ---------- -- ^------ --------------- <br /> Oil & Grease NA NA NA NA NA <br /> Diesel NA NA NA NA NA <br /> Gasoline 01/02/92 200 ng 98/102 4 70-130 <br /> Benzene 01/06/92 200 ng 104/96 8 70-130 <br /> Toluene 01/06/92 200 ng 105/99 6 70-130 <br /> Ethyl Benzene 01/06/92 200 ng 106/100 6 70-130 <br /> tTotal Xylenes 01/06/92 200 ng 106/100 6 70-130 <br /> Richard Srna, Ph. D. <br /> ` r <br /> o1, 4- ov"', <br /> Laboratory Dz <br /> recto <br /> e-� <br /> Certified Laboratories <br />