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Superior Precision Analytical, Inc. <br /> 825 Arnold Drive SU+te 114 ■ Martinez Cahfornia 94553 • (51 0) 229 1 5 1 2 / fax (5#0) 229 1 526 <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 84789 <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 SPIKELEVEL MS/MSD^RECOVERY RPD CONTROLLIMIT <br /> - <br /> Oil & Grease NA NA NA NA NA <br /> Diesel NA NA NA NA NA <br /> Gasoline 01/02/92 200 ng 96/98 2 70-130 <br /> Benzene 01/06/92 200 ng 103/106 3 70-130 <br /> Toluene 01/06/92 200 ng 99/101 2 70-130 <br /> Ethyl Benzene 01/06/92 200 ng 106/107 1 70--130 <br /> Total Xylenes 01/06/92 200 ng 94/94 0 70--130 <br />• Richard Srna, Ph. D. <br /> falboratory Director <br /> Certified Laboratories <br />