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Superior Precision Ana/ytica/. Inc. <br /> IS825 Arnold Drive Suite 1 14 - Mart)nez California 94553 ■ (510) 229 1512 / fax 15101 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 3 of 3 <br /> QA/QC INFORMATION <br /> SET: 85295 <br /> NA = ANALYSIS NOT REQUESTED <br /> ND = ANALYSIS NOT DETECTED ABOVE QUANTITATION LIMIT <br /> ug/L = part 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 /> 0 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 SPIKE LEVEL MS/MSDRECOVERY RPD CONTROL LIMIT <br /> - } - <br /> Oil & Grease Nk NA NAL NA NA <br /> Diesel N4 NA NA NA NA <br /> Gasoline 03/03/91 200 ng 100/87 14 70-130 <br /> Benzene 02/26/92 200 ng 104/100 4 70-130 <br /> Toluene 02/26/92 200 ng 97/91 6 70-130 <br /> Ethyl Benzene 02/26/92 200 ng 96/91 5 70-130 <br /> Total Xylene 02/26/92 200 ng 91/86 6 70-130 <br /> I <br /> i <br /> Ri na, Ph . D <br /> do <br /> Laboratory Dire Aor <br /> Cert,f ed Laboratories <br />