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+* PL BATCH QUALITY CONTROL REPORT ** <br /> California LUFT Manual for Gasoline HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br /> O HOUSTON, TEXAS 77054 <br /> Batch Id: VARD9B0715042600 PHONE(713) 660-0901 <br /> Units: 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 I Result Recovery (Mandatory) <br /> <2> <3> <1> % W Recovery Range <br /> Gasoline Range Organics ND 1.00 1.10 110 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 % (Adviso ) <br /> Result Recovery Result Recovery Difference RPD <br /> <2> <3> <1> <4> <1> <5> Max. Recovery Range <br /> GASOLINE RANGE ORGANICS 0.07 0.90 0.56 54.4 0.56 59.4 0 36 36 - 160 <br /> * = Values outside QC Range due to Matrix Interference (except RFD) <br /> Analyst: LJ/ a Data outside Method Specification limits. <br /> Sequence Date: 07/15/98 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked: 9807312-18D ND = Not Detected/Below Detection Limit <br /> Sample File ID: DDG2082.TX0 % Recovery = [( <1> - <2> ) / <3> ] x 100 <br /> Method Blank File ID: LCS 8 Recovery = (<1> / <3> ) x 100 <br /> lank Spike File ID: DDG2075.TX0 Relative Percent Difference = 1 (<4> - <5> I / i(<4> + <5> ) x 0.5] x 100 <br /> Matrix Spike File ID: DDG2078.TX0 {**) = Source: SPL-Houston Historical data (1st Q 197) <br /> Matrix Spike Duplicate File ID: DDG2079.TX0 (*'*) = Source. SPL-Houston Historical Data (1st Q '97) <br /> SAMPLES IN BATCH(SPL ID) : 9807329-04A 9807329-05A 9807329-06A 9807329-07A <br /> • <br />