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* SPL BATCH QUALITY CONTROL REPORT ** HOUSTON LABORATORY <br /> California LUPT Manual for Diesel 8880 INTERCHANGE DRIVE <br /> HOUSTON,TEXAS 77054 <br /> p PHONE(713)660-0901 <br /> Matrix: Aqueous Batch Id: HP V990401004800 <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 (Mandatary) <br /> c2> a3> <1> t �k Recovery Range <br /> Diesel ND 2.5 2.2 88.0 53 - 148 <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> c4> <1> <5> Max. Recovery Range <br /> DIESEL 0.10 2.5 1.7 1 <br /> 54.0 1.8 66.0 6.D5 39 21 - 175 <br /> * = Values outside QC Range due to Matrix Interference (except RPD) <br /> Analyst: RR a = Data outside Method Specification limits. <br /> Sequence Date: 04/01/99 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked: 9903B99-08B ND = Not Detected/Below Detection Limit <br /> Sample File ID: VVC4154.TX0 t Recovery = [( <1> - <2> ) / <3n ] x 100 <br /> Method Blank File ID. LCS % Recovery = (<1> / <3> ) x 100 <br /> Blank Spike File ID. VVC4150.TX0 Relative Percent Difference = 1 (<4> - <5> 1 / [(<4a + <5> } x 0.5] x 100 <br /> Matrix Spike File ID: VVC4155.TX0 (^*} Source: SPL Historical Limits (4th Qtr'97) <br /> ' Matrix Spike Duplicate File ID: VVC4156.TX0 (+**} Source: SPL Historical Limits (4th Qtr.'97) <br /> SAMPLES IN SATCH(SPL IP) : 9903B99-DBD <br /> s <br />