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4 <br /> * SPL BATCH QUALITY CONTROL REPORT HOUSTON LABORATORY <br /> California LUFT Manual for Gasoline 8880 INTERCHANGE DRIVE <br /> 0 HOUSTON TEXAS 77054 <br /> PHONE(713}660 0901 <br /> 4rjLo�.l Batch Id HP 0991018175000 <br /> Units mg/kg <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 5 ike 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 0 79 79 0 53 - 137 <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 k (Advisory) <br /> Result Recovery Result Recovery Difference RPD <br /> <2> <3> <1> <4> <1> <5> Max Recovery Range <br /> GASOLINE RANGE ORGANICS ND 0 90 0 83 92 2 0 72 80 0 14 2 50 36 - 163 <br /> - * Values outside QC Range due to Matrix Interference (except RPD) <br /> Analyst fab r Data outside Method Specification limits j <br /> Sequence Date 10/18/99 NC - Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample Spiked 9910437-OIA ND a Not Detected/Below Detection Limit <br /> Sample File ID OOJ3019 TXO * Recovery - (( <1> - <2> ) / <3> ] x 100 <br /> *:hod Blank File ID LCS t Recovery - (<1> / <3> ) x 100 <br /> ink Spike File ID OOJ3013 TXO Relative Percent Difference - 1 (<4> - <5> [(<4> + <5> ) x 0 5) x 100 <br /> Matrix Spike File ID OOJ3016 TXO (**) = Source SPL-Houston Historical Data (1st Q 197) <br /> Matrix Spike Duplicate File ID OOJ3017 TXO (***) Source SPL-Houston Historical Data (1st Q '97) <br /> SAMPLES IN BATCH(SPL ID) 9910418-09A 9910418-11A 9910418-19A 9910418-25A <br /> 9910313-03A 9910418-03A 9910313-14A 9910313-20A <br />