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* SPL BATCH QUALITY CONTROL REPORT * HOUSTON LABORATORY <br /> California LUFT Manual for Gasoline 8880 INTERCHANGE DRIVE <br /> Q HOUSTON,TEXAS 77054 <br /> 4a r1x: queous Batch Id: HP N981103171200 PHONE(719)660.0901 <br /> Units: mg/L <br /> L A B 0 R A T 0 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 0 M P 0 U N D S Blank Result Added Result Recovery (Mandatory) <br /> <2> <3> <1> % % Recovery Range <br /> Gasoline Range Organics ND 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 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> c5> Max. Recovery Range <br /> GASOLINE RANGE ORGANICS ND 0.90 0.89 98.9 0.89 98.9 0 36 36 - 160 <br /> > = Values outside QC Range due to Matrix Interference (except RPD) <br /> Analyst: TB « = Data outside Method Specification limits. <br /> Sequence Date: 11/03/98 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked: 9810DIS-02A ND = Not Detected/Below Detection Limit <br /> Sample Fite ID: NNK1071.TXO % Recovery = t( 0> - <2> ) / <3> 3 x 100 <br /> Method Btank File ID: LCS % Recovery = (<l> / <3> ) x 100 <br /> Blank Spike File ID: NNK1064.TXO Relative Percent Difference = 1(<4> - <5> / I(<4> + <5> ) x 0.51 x 100 <br /> Matrix Spike File ID; NNK1067.TX0 (¢*) = Source: SPL-Houston Historical data (1st Q 197) <br /> Matrix Spike Duplicate Fite ID: NNK1068.Tx0 (***) = Source: SPL-Houston Historical Data (1st Q 197) <br /> I <br /> SAMPLES IN BATCH SPL ID): 9810015-05A 9810DIS-06A 981OD15-07A 981OD17-OIA <br /> 981OD17-02A 981OD71-01A 9810071-08A 9810015-GIA <br /> 981OD15-02-A 981OD15-03A 9810015-04A <br />