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* SPL BATCH QUALITY CONTROL REPORT ** PAGEHOUSTON LABORATORY <br /> CA LUFT 8880 1NTERCI-IANGE DRIVE <br /> HOUSTON,TEXAS 77P54,,,, <br /> 0 PHONE(713)660-0901 <br /> Matrix: Aqueous Batch Id: HP�J960721090000 0 <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> % % Recovery Range <br /> Petroleum Hydrocarbons-Gas ND 1.0 1.0 100 50 - 150 <br /> M A T R I X S P I K E S <br /> S P I K E Sample Spike Matrix Spike i 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 RPA <br /> <2> <3> <1> <4> <1> <5> Max. Recovery Range <br /> PETROLEUM HYDROCARBONS-GAS ND 0.9 0.72 80.0 0.77 85.6 6.76 50 50 - 150 <br /> Analyst: AA * = Values Outside QC Range <br /> Sequence Date: 07/21/96 NC = Not Calculated (Sample exceeds spike by factor of 4 or morel <br /> SPL ID of sample spiked: 9607846-06A ND = Not Detected/Below Detection Limit <br /> Sample File ID: JJ_504.TXO t Recovery - [( <1> - <2> ) / <3> 1 x 100 <br /> Method Blank File ID: LCS % Recovery = (<1> / <3> x 100 <br /> Blank Spike File ID: JJ _496.TX0 Relative Percent Difference = � (<4> - <5> / [(<4> + <5> ] x 0.53 x 100 • <br /> Matrix Spike File ID: JJ 499.TXO (**) - Source: Temporary Limits <br /> Matrix Spike Duplicate File ID: JJ_SOO.TXO (***) = Source: Temporary Limits <br /> SAMPLES__IN_BATCH_LSPL_ID) e 9607856-03A 9607856-OIA 9607846-06A 9607852-01A <br /> 9607852-02A 9607852-03A 9607852-04A 9607852-05A <br /> 9607852-06A <br /> 2 <br /> QC Officer <br />