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Superior Precision Analytical. Inc. <br />PO Box 1545 ■ Mamnez California 94553 ■ (5 10) 229-1590 / fax (5 10) 229-09 16 <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. 89201 <br />NA = ANALYSIS NOT REQUESTED <br />ND = ANALYSIS NOT DETECTED ABOVE QUANTITATION LIMIT <br />mg/kg = parts per million (ppm) <br />ug/L = parts per billion (ppb) <br />OIL AND GREASE ANALYSIS By Standard Methods Method 552OF <br />Minimum Detection Limit in Soil 50mg/kg <br />Modified EPA SW -846 Method 8015 for Extractable Hydrocarbons <br />Minimum Quantitation Limit for Diesel in Soil 10mg/kg <br />EPA SW -846 Method 8015/5030 Total Purgable Petroleum Hydrocarbons <br />Minimum Quantitation Limit for Gasoline in Soil lmg/kg <br />Minimum Quantitation Limit for Gasoline in Extract/Water 50 ug/L <br />EPA SW -846 Method 8020/BTXE <br />Minimum Quantitation Limit in Soil 0 005mg/kg <br />IsMinimum Quantitaiton Limit in Extract/Water 0 5ug/L <br />ANALYTE <br />MS/MSD RECOVERY <br />RPD <br />CONTROL LIMIT <br />Gasoline <br />95/98 <br />30 <br />70-130 <br />Benzene <br />92/88 <br />401 <br />70-130 <br />Toluene <br />90/87 <br />30 <br />70-130 <br />Ethyl Benzene <br />105/104 <br />10 <br />70-130 <br />Xylenes <br />123/112 <br />106 <br />70-130 <br />Diesel Range <br />110/112 <br />20 <br />75-125 <br />Oil and Grease <br />86/75 <br />140 <br />56-106 <br />Richard -.9 f� " <br />Laboratory Director <br />Ce, r,f�cd !_pbcratories <br />