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Superior Precision Ana/ytica/, Inc. <br /> 825 Arnold Drive Shite 1 14 ■ Martinez California 94553 ■ {510) 229-1512 /fax {5 10) 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 3 of 3 <br /> QA/QC INFORMATION <br /> SET: 901.50 <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 5520E- <br /> Minimum Detection Limit in Water: 5000ug/L <br /> Modified EPA SW-846 Method 801.5 for Extractable Hydrocarbons : <br /> Minimum Quantitation Limit for Diesel in Water- 50ug/L <br /> EPA SW-846 Method 8015/5030 Total. Purgable Petroleum Hydrocarbons . <br /> Minimum Quantitation Limit for Gasoline an 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 95/86 106 70-130 <br /> Benzene . 90/88 20 70-1.30 <br /> Toluene 107/89 180 70-130 <br /> Ethyl Benzene 11.1/97 13s 70-130 <br /> Total Xylenes 106/90 160 70-130 <br /> /117 <br /> Senior Chemist <br /> Certified Laboratories <br />