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SPL BATCH QUALITY CONTROL REPORT ** <br /> HOUSTON LABORATORY <br /> California LUFT Manual for Gasoline <br /> 8680 INTERCHANGE DRIVE <br /> HOUSTON,TEXAS 77054 <br /> Batch Id: HP_N991014090800 RHONE {713}660-0901 <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 0 U N D S Blank Result Added Result Recovery (Mandatory) <br /> <2> <3> <1> k 1 Recovery Range <br /> Gasoline Range Organics ND 1.0 1.0 100 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> 1 Max. Recovery Range <br /> GASOLINE RANGE ORGANICS ND 0.90 1.1 122 1.2 133 8.63 36 36 - 160 <br /> * Values Outside QC Range due to Matrix Interference (except RPD) <br /> Analyst: WLR a Data outside Method Specification limits. <br /> Sequence Date. 10/14/99 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked: 99100150-02 ND = Not Detected/Below Detection Limit <br /> Sample File ID: NNJ2142.TX0 t Recovery = [{ cl> - <2> } / <3> ] x 100 <br /> thod Blank Pile ID: LCS % Recovery - (<l> / <3> ) x 100 <br /> ank Spike File ID: NNJ2114.TX0 Relative Percent Difference = 11<4> - <5> / [(<4> + <5> 1 x 0.5] x 100 <br /> Matrix Spike File ID: NNJ2138.TX0 {**) = Source: SPL-Houston Historical data (1st Q 197) <br /> Matrix Spike Duplicate File ID: NN.72139.TX0 (***? Source: SPL-Houston Historical Data (1st Q 197) <br /> SAMPLES IN BATCH(SPL ID) : 9910310-03A 9910434-OIA 9910414-02A 9910414-03A <br /> 9910310-01A 9910310-02A <br />