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** SPL BATCH QUALITY CONTROL REPORT ** PAGE 1 <br /> METHOD 8020 <br /> Matrix: Aqueous Batch Id- VARE941226201800 <br /> Units: Rg/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 0 M P 0 U M D S Blank Result Added Result Recovery (Mandatory) <br /> <2> <3> <1> % % Recovery Range <br /> Benzene ND 50 51 102 54 - 126 <br /> Toluene NO 50 58 116 61 - 125 <br /> EthylBenzene ND 50 50 100 57 - 129 <br /> 0 Xylene NO 50 53 106 32 - 160 <br /> M & P Xylene ND 100 110 110 32 - 160 <br /> M A T R I_XS P I K E S <br /> S P I K E Sample Spike Matrix Spike Matrix Spike MS/MS0 QC Limits(***) <br /> C O M P O U N D S Results Added Duplicate Relative % Advisor <br /> Result Recovery Result Recovery Difference RPD <br /> <2> <3> <1> <4> <1> <5> Max. Recovery Range <br /> Benzene ND 20 19 95 0 19 95 0 0 19 61 - 131 <br /> Toluene ND 20 20 100 19 95 0 5 13 18 57 - 127 <br /> EthylBenzene ND 20 18 90 0 18 90 0 0 18 55 - 131 <br /> 0 Xylene ND 20 18 90 0 18 90 0 0 20 40 - 130 <br /> M & P Xylene ND 40 40 100 41 102 1 98 16 43 - 152 <br /> Analyst YN * = Values Outside QC Range <br /> Sequence Date 12/26/94 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked 9412877-01A NO = Not Detected/Below Detection Limit <br /> Sample File ID E_279 TXO % Recovery = [( <1> - <2> ) / <3> 3 x 100 <br /> Method Blank File ]D LCS % Recovery = (<l> / <3> ) x 100 <br /> Blank Spike File ID E_272 TXO Relative Percent Difference = 1(<4> - <5> / [(<4> + <5> ) x 0 53 x 100 <br /> Matrix Spike File ID E_275 TXO {**) = Source SPL-Houston Historical Data <br /> Matrix Spike Duplicate File ID E�276 TXO (***) = Source SPL-Houston Historical Data <br /> SAMPLES IM BATCH(SPL ID) 9412793-01A 9412846-IOA 9412829-01A 9412875-01A <br /> 9412820-02A 9412875-02A 9412875-03A 9412951-04A <br /> 9412763-06B 9412A02-03D 9412846-05A 9412819-04A <br /> 9412A15-18A 9412951-03A 9412951-01A 9412951-02A <br /> 9412846-02A 9412877-01A <br /> 40 <br /> IdeLis uiLliam), QC Officer <br />