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a <br /> * SPL BATCH QUALITY CONTROL REPORT ** HOUSTON LABORATORY <br /> California LUFT Manual for Gasoline 8880 INTERCHANGE DRIVE +. <br /> O <br /> HOUSTON TEXAS 77054 <br /> Batch Id HPN991015155400 <br /> PHONE(713) 6600901 <br /> ,W 494W <br /> Matrix Aqueous — <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> t 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 t (Advisory) <br /> Result Recovery Result Recovery Difference RPR <br /> <2> <3> <1> <4> <1> <5> Max Recovery Range <br /> GASOLINE RANGE ORGANICS 7 1 0 90 8 4 NC 8 B NC F NC7 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 10/15/99 NC - Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked 99100151-04 ND - Not Detected/Below Detection Limit <br /> Sample File ID NNJ2187 TXO 1; Recovery = [( <1> - <2> ) / <3> ) x 100 <br /> Method Blank File ID LCS t Recovery = (<1> / <3> ) x 100 <br /> Blank Spike File ID NNJ2179 TXO Relative Percent Difference = 1 (<4> - <5> / [(<4> + <5> } x 0 51 x 100 <br /> Matrix Spike File ID NNJ2183 TXO (**) source SPL-Houston Historical data list Q 197) <br /> Matrix Spike Duplicate_File ID-`NNJ2184 TXO_ ("*I = Source SPL-Houston Historical Data (1st Q 197)� <br /> SAMPLES IN BATCH(SPL ID) 9910310-04A 9910414-04A 9910418-04A 9910256-GIA <br /> 9910310-05A <br />