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* SPL BATCH QUALITY CONTROL REPORT ** PAGEHOUSTOH LABORATORY <br /> CA LUFT 8880 INTERCHANGE DRIVE <br /> M40480 0HOUSTON,TEXAS 7704 <br /> PHONE(7i 3)660-0901 <br /> Matrix: Aqueous Batch Id: HP J460723063200 <br /> Units: mg/L. 0 <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> W 4 Recovery Range <br /> Petroleum Hydrocarbons-Gas ND 1.0 D.96 96.0 50 - 150 <br /> M A T R I X S P I K E S <br /> i <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> <4> <1> <5> Max. I Recovery Range <br /> GASOLINE PETR. HYDROCARBON ND 0.9 0.86 95.6 0.87 96.7 1.14 22 F <br /> 37 - 169 <br /> Analyst: RL * = Values Outside QC Range <br /> Sequence Date: 07/23/96 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked: 9607844-OIA ND = Not Detected/Below Detection Limit <br /> Sample File ID: JJ_587.TX0 % Recovery = [( <1> - <2> ) / <3> ) x 100 <br /> Method Blank File ID: LCS k Recovery - (<1> / <3> ) x 100 <br /> Blank Spike File ID: JJ_ 5S8.TXO Relative Percent Difference = 11<4> - <5> 1 / [(<4> + <5> ) x 0.5] x 100 <br /> Matrix Spike File ID: JJ_575.TX0 (*•} a Source: Temporary Limits <br /> Matrix Spike Duplicate File ID: TJ_576.TXO Source: SPL-Houston Historical Data 13rd Q 195) <br /> SAMPLES IN BATCH(SPL ID) : 9607859-02A 9607859-01A 9607859-03A 9607859-G5A <br /> 9607859-06A 9607844-01A 9607755-03A 9607859-08A <br /> 9607659-IOA 9607852-G9A <br /> QC Officer <br />