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C <br /> * SPL BATCH QUALITY CONTROL REPORT ** HOUSTON LABORATORY <br /> California LUFT Manual for Gasoline 8880 INTERCHANGE DRIVE <br /> HOUSTON TEXAS 77054 <br /> 0 PHONE (713)660 0901 <br /> Matrix Aqueous Batch Id HP_N991018132200 <br /> Units mg/L <br /> L A B O R A T O R Y CONTR OL SAMPLE <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 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/MSA QC Limits(***) <br /> C O M P O U N D S Results Added Duplicate Relative Adviso <br /> Result Recovery ResultRecovery Difference RPD <br /> <2> <3> <1> <4> <1> <5> Max Recovery Range <br /> GASOLINE RANGE ORGANICS 7 8 0 90 9 6 NC 9 6 NC NC 36 36 - 160 <br /> ! = Values outside QC Range due to Matrix Interference (except RPD) <br /> Analyst WLR R = Data outside Method Specification limits <br /> Sequence Date 10/18/99 NC . Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked 99100151-16 ND = Not Detected/Below Detection Limit <br /> Sample File ID NNJ3020 TXO I Recovery = [( <1> - <2> ) / <3> ) x 100 <br /> hod Blank File ID LCS % Recovery = (<I> / <3> } x 100 <br /> nk Spike File ID NNJ3012 TRO Relative Percent Difference = { (<4> - <5> [(<4> + <5> ) x 0 53 x 100 <br /> Matrix Spike File ID NNJ3016 TXO (**} = Source SPL-Houston Historical data (1st Q '97) <br /> Matrix Spike Duplicate File ID NNJ3017 TXO {***) Source SPL-Houston Historical Data (1st Q 197) <br /> SAMPLES IN BATCH(SPL ID) 9910313-17A 9910531-01A 9910313-08A 9910313-IIA <br />