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* SPL BATCH QUALITY CONTROL REPORT ** HOUSTON LABORATORY <br /> California LOFT Manual for Gasoline 8880 INTERCHANGE DRIVE <br /> 0 HOUSTON,TEXAS 77054 <br /> n PHONE(713)660.0901 <br /> Matrix: Aqueous Batch Id: VARE990330045910 <br /> IInits: mg/L <br /> L A B O R A T O R Y C 0 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 /> r]' <br /> <2> <3> <1> %, % Recovery Range <br /> Gasoline Range Organics NO 1.0 0.90 90.0 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 0 M P 0 U N D S Results Added Duplicate Relative (Advisory) <br /> Result Recovery Result Recovery Difference RPD <br /> <2> <3> 7 <4> <1> <5n Max- Recovery Range <br /> GASOLINE RANGE ORGANICS 1-4 D.90 1.7 33.3 * 1.7 33.3 * 0 36 36 - 160 <br /> * = Values outside QC Range due to Matrix Interference !except RPD] <br /> Analyst. LJ : Data outside Method Specification limits. <br /> Sequence Date: 03/30/99 NC = Not Calculated (Sample exceeds spike by factor of 4 or morel <br /> SPL ID of sample spiked: 9903A56-15A ND Not Detected/Below Detection Limit <br /> Sample File ID- EEC5047.TX0 % Recovery - [( <1> - <2> ) / <3> ] x 100 <br /> Method Blank File ID: LCS t Recovery = (<1> / <3, 1 x 100 <br /> Blank Spike File ID: EEC5040.TX0 Relative Percent Difference = I (<4> - <5> 1 / [(<4> * <5> I x 0.51 x 100 <br /> Matrix Spike File ID: EEC5043.TX0 (**I Source: SPL-Houston Historical data (lst Q 197) <br /> Matrix Spike Duplicate File ID: EEC5044.TX0 (***) = Source: SPL-Houston Historical Data (1st Q 197} <br /> SAMPLES IN BATCH(SPL ID) _ 9903B99-09A <br /> a <br /> d <br />