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Superior Precision.,.-Ina/vrica/, Inc_ <br /> 825 Arnold Drive Suite 1 14 • Martinez California 94553 ■ (510) 229-1512/fax (510) 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 89994 <br /> NA = ANALYSIS NOT REQUESTED <br /> ND = ANALYSIS NOT DETECTED ABOVE QUANTITATION LIMIT <br /> ug/L = parts per billion (ppb) <br /> EPA SW-846 Method 8015/5030 Total Purgable Petroleum Hydrocarbons <br /> Minimum Quantitation Limit for Gasoline in Water 50ug/L <br /> EPA SW-846 Method 8020/BTXE <br /> Minimum Quantitation Limit in Water 0 3ug/L <br /> ANALYTE MS/MSD RECOVERY RPD CONTROL LIMIT <br /> ----- --------- - ------ ------ --- --- -------- -- --- - <br /> Gasoline 95/100 50 70-130 <br /> Benzene 95/94 la 70-130 <br /> Toluene 103/103 00 70-130 <br /> Ethyl Benzene 105/105 Oo 70-130 <br /> Total Xylenes 97/98 Io 70-130 <br /> 3 , <br /> Senior Chemist <br /> Certified Laboratories <br />