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EEj, Superior Precision �lnaiytic�i, inc. <br /> 825 Arnold Dr)ve Suae 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 30052 <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 5ug/L <br /> ANALYTE- --_---- MS/MSD RECOVERY RPD CONTROL LIMIT <br /> wGasoline 108/118 90 70-130_- _- -- <br /> Benzene 112/95 160-. 70-130 <br /> Toluene 107/103 40 70-130 <br /> Ethyl Benzene 97/91 60 70-130 <br /> Total Xylenes 108/101 71 70-130 <br /> _T±4 <br /> Senior Chemist <br /> Certified Laboratories <br />