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SLIperior Precision Analytical, Inc. <br />A member of ESSCON Environmental Support Service Consortium <br />Page 2 of 2 <br />QA/QC INFORMATIO <br />SET: 30681 1: <br />NA = ANALYSIS NOT REQUESTED <br />ND = ANALYSIS NOT DETECTED ABOVE QUANTITATION LIMI <br />ug/L = parts per billion (ppb) I <br />OIL AND GREASE ANALYSIS By Standard Methods Method 552OF: <br />Minimum Detection Limit in Water: 5000ug/L <br />Modified EPA SW -846 Method 8015 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 in Water: 50ug/L <br />EPA SW -846 Method 8020/BTXE <br />Minimum Quantitation Limit in Water: 0.5ug/L <br />ANALYTE <br />MS/MSD RECOVERY <br />RPD <br />CONTROL LIMIT <br />--------------- <br />Gasoline: <br />--------------- <br />I28/124 <br />--- <br />3!k <br />------------- <br />70-130 <br />Benzene: <br />1I8/I17 <br />I%; <br />70-130 <br />Toluene: <br />1I0/96 <br />1416 <br />70-I30 <br />IIthnI Benzene: <br />78/70 <br />II?k <br />70-I30 <br />Total Xylenes: <br />83/92 <br />100, <br />70-130 <br />Senior Chemist <br />Certified Laboratories <br />8Z5Arnold Or'Suite |74 ° Martinez, California 94553 - (5|O)3}3'08S0/fax (5|O)229'|5Z6 <br />