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** SPL BATCH QUALITY CONTROL REPORT ** PAGE 1 <br /> METHOD 8020 <br /> O <br /> . Matrix- Aqueous Batch Id: HP_U941216203500 <br /> Units- )tg/L <br /> L A B O R A T O R Y C 0 N T R 0 L S A M P L E <br /> S P I K E Method Spike Blank §pike QC Limits(**) <br /> C 0 M P O U N D S Blank Result Added Result Recovery (Mandatory) <br /> Q> <3> <1> % % Recovery Range <br /> Benzene ND 50 57 114 54 - 126 <br /> Toluene ND 50 53 106 61 - 125 <br /> EthylBenzene ND 50 54 108 57 - 129 <br /> 0 Xylene ND 50 55 110 32 - 160 <br /> M & P Xylene ND 100 120 120 32 - 160 <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 0 M P 0 U N D S Results Added Duplicate _ Relative X _ (Advisory) <br /> Result Recovery Result Recovery Difference RPD <br /> <2> <3> <1> <4> <1> <5> Max. Recovery Range <br /> Benzene ND 20 11 55.0 * 16 80 0 37 0 * 19 61 - 131 <br /> Toluene ND 20 10 50.0 * 15 75 0 40 0 * 18 57 - 127 <br /> Ethy[Senzene ND 20 10 50.0 * 15 75 0 40.0 * 18 55 - 131 <br /> 0 Xylene ND 20 10 50.0 15 75.0 40.0 * 20 40 - 130 <br /> . M & P Xylene ND 40 21 52.5 31 77.5 38.5 * 16 43 - 152 <br /> Analyst: YN * = Values Outside QC Range <br /> Sequence Date: 12/16/94 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked 9412545-04A ND = Not Detected/BeLow Detection Limit <br /> Sample File ID U_610.TXO X Recovery = [( <1> - <2> ) / <3> ] x 100 <br /> Method Blank File ID. LCS X Recovery = (<l> / <3> ) x 100 <br /> Blank Spike File ID: U_582.TXO Relative Percent Difference = 1(<4> - <5> / [(<4> + <5> ) x 0 5] x 100 <br /> Matrix Spike File ID U-616 TXO (**) = Source: SPL-Houston Historical Data <br /> Matrix Spike Duplicate File ID U 619.TXO (*""*) Source SPL-Houston Historical Data <br /> SAMPLES IN BATCH(SPL ID): 9412729-05A 9412729-D4A 9412729-06A 9412545-03A <br /> 9412545-04A 9412545-05A 9412545-OIA 9412545-OZA <br /> 9412475-04A 9412474-05A 9412474-06A 9412474-DTA <br /> 9412474-08A 9412474-09A 9412474-1OA 9412475-OIA <br /> 9412475-0 94124// 941 4-11 <br /> L L J <br /> Ideli AitLiams, QC Officer <br />