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** SPL BATCH QUALITY CONTROL REPORT ** HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRiVE <br /> California LUFT Manual for Gasoline HOUSTON TEXAS 77054 <br /> O PHONE (713)6600901 <br /> Matrix: Aqueous Batch Id. HP_N991019094300 <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> % % Recovery Range <br /> Gasoline Range Organics NO 1.0 0.99 99 0 64 - 131 <br /> M A T R- 1 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 DmPlicate Relative X (Advisory) <br /> Result Recovery Result Recovery Difference RPO <br /> <2> <3> <1> <4> <1> <5> Max. Recovery Ill <br /> GASOLINE RANGE ORGANICS ND 0 90 1 2 133 1 2 133 0 36 36 - 160 <br /> * = Values outside QC Range due to Matrix Interference (except RPD) <br /> Analyst WLR « = Data outside Method Specification limits. <br /> Sequence Date: 10/19/99 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked 9910313-25A ND = Not Detected/Below Detection Limit <br /> Sample File ID: NNJ3062 TXO % Recovery = [( <1> - <2> ) / <3> 3 x 100 <br /> Method Blank File ID- LCS % Recovery = (<l> / <3> ) x 100 <br /> Blank Spike File ID: KNJ3048 TXO Relative Percent Difference = 1(<4> - <5> / [(<4> + <5> ) x 0 5) x 100 <br /> Matrix Spike File ID NNJ3058 TXO (**) = Source: SPL-Houston Historical data (1st Q 197) <br /> Matrix Spike Duplicate File ID- NNJ3059 TXO (**"") = Source. SPL-Houston Historical Data (1st Q 197) <br /> SAMPLES IN BATCH(SPL ID): 9910418-OSA 9910418-12A 9910418-16A 9910418-20A <br /> 9910418-24A 9910415-01A 9910313-07A 9910415-02A <br /> 9910313-25A 9910313-21A <br />