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SPL BATCH QUALITY CONTROL REPORT ** HOUSTON LABORATORY <br /> California LUFT Manual for Gasoline 8880 INTERCHANGE DRIVE <br /> HOUSTON, TEXAS 77054 <br /> •, PHONE(713) 660-0901 <br /> Aqueous Batch Id: HP_S9801220B4100 <br /> Units: mg/L <br /> L A B O R A T O R Y C O N T R O L S A M P L E <br /> S P I K E Method Spike Blank Spike QC Limits(**) <br /> C O M P O U N D S Blank Result Added Result Recovery (Mandatory) <br /> <2> <3> <1> P6 It Recovery Range <br /> Gasoline Range Organics ND 1.0 0.92 92.0 64 - 131 <br /> M A T R I X S P I K E S <br /> S P I K E Sample Spike Matrix Spike Matrix Spike MS/MSD QC Limits(***) <br /> C O M P O U N D S Results Added Duplicate Relative (Advisory) <br /> Result Recovery Result Recovery Difference RPD <br /> <2> <3> <1> <4> <1> <5> Max. Recovery Range <br /> GASOLINE RANGE ORGANICS ND 'IT <br /> 5 26 57.8 28 62.2 7.33 36 36 - 160 <br /> * = Values outside QC Range due to Matrix Interference (except RPD) <br /> Analyst: DN a = Data outside Method Specification limits. <br /> Sequence Date: 01/22/98 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked: 9801744-03A ND = Not Detected/Below Detection Limit <br /> Sample File ID: SSA3069.TX0 %- Recovery = [( <1> - <2> ) / <3> ) x 100 <br /> r '-hod Blank Pile ID: LCS % Recovery - (<1> / <3> } x 100 <br /> .Sk Spike File ID: SSA3082,TX0 Relative Percent Difference = I (<4> - <5> / I(<4> + <5> ) x 0.51 x 100 <br /> Matrix Spike File ID: SSA3086.TX0 (**) = Source: SPL-Houston Historical data (1st Q 197) <br /> Matrix Spike Duplicate File ID: SSA3087.TX0 (***) = Source: SPL-Houston Historical Data (1st Q 197) <br /> SAMPLES IN BATCH(SPL ID) : 9801743-02A 9801743-03A 9801583-OBA 9801743-05A <br /> 9801685-03A 9801685-04A 9801744-03A 9B015B5-06A <br /> 9801743-DIA <br /> j <br />