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,y * SPL BATCH QUALITY CONTROL-REPORT ** PAGNOUSTON LABORATORY <br /> METHOD 8020/602 8880 INTERCHANGE DRIVE <br /> O HOUSTON, TEXAS 77054 <br /> WPHONE(713)660-0901 <br /> Matrix: Aqueous Batch Id: HP_J960505040800 <br /> Units: µg/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 i* ) <br /> C O M P O U N D S Blank Result Added Result Recovery (Mandatory) <br /> <2> <3> <1> k k Recovery Range <br /> MTBE ND So 48 96.0 20 - 110 <br /> Benzene ND 50 51 102 62 - 121 <br /> Toluene ND 50 51 102 66 - 136 <br /> EthylBenzene ND 50 51 102 70 - 136 <br /> 0 Xylene NO 50 52 104 74 - 134 <br /> M & P Xylene NO 100 110 110 77 - 140 <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 /> MTBE ND 20 17 85.0 18 90.0 5.71 20 39 - 150 <br /> BENZENE ND 20 20 100 20 100 0 25 39 - 150 <br /> LUWE NO 20 19 95.9 20 100 5.13 26 56 - 134 <br /> LBENZENE NO 20 18 90.0 19 95.0 5.41 38 61 - 128 <br /> 0 XYLENE ND 20 19 95.0 18 90.0 5.41 29 40 - 130 <br /> M & P XYLENE ND 40 38 95.0 38 95.0 0 20 43 - 152 <br /> Analyst: VHZ a Values Outside QC Range <br /> Sequence Date: 05/05/96 NC . Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked: 9604002-03A ND = Not Detected/Below Detection Limit <br /> Sample File ID: J_620.TX0 k Recovery [I <1> - <2> ) / <3> ] x 100 <br /> Method Blank File ID: LCS % Recovery = (<I> / <3> } x 100 <br /> Blank Spike File ID: J_611.TX0 Relative Percent Difference = 1 (<4> - <5> 1 / [(<4> + <5> ) x 0.5) x 100 <br /> Matrix Spike File ID: J_627.TX0 (**) a Source: SPL-Houston Historical Data (3rd Q 195) <br /> Matrix Spike Duplicate File ID: J_628.TX0 (***) Source: SPL-Houston Historical Data (2nd Q 195) <br /> SAMPLES IN BATCH(SPL ID) : 9604CO2-03A 9604CO2-04A 9604CO2-05A 9604CO2-06A <br /> 9604CO2-07A 9604CO2-08A 9604CO2-07A 9604CO2-08A <br /> 9605123-04A 9605123-05A 9604CO2-09A 9604075-01A <br /> 9604C75-02A 9604C75-03A 9604C75-04A 9604C75-05A <br /> 9604B02-05A 9604B06-04A <br /> QC Officer <br />