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** SPL BATCH DUALITY CONTROL REPORT ** PAGE 1 <br /> OO METHOD 8020 <br /> Matrix: Aqueous Batch Id HP_S950331100300 <br /> Units: ug/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> X % Recovery Range <br /> Benzene ND 50 44 88 0 61 - 123 <br /> Toluene ND 150 140 93 3 62 - 122 <br /> EthyLBenzene ND 50 48 96 0 56 - 119 <br /> 0 Xylene ND 100 95 95 0 32 - 160 <br /> M & P Xylene ND 200 200 100 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 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. Recovery Range <br /> Benzene ND 20 16 80.0 16 80 0 0 25 39 - 150 <br /> Toluene ND 20 16 80 0 16 80 0 0 26 56 - 134 <br /> EthylBenzene ND 20 17 85.0 J335 <br /> 85 0 0 38 61 - 128 <br /> 0 Xylene ND 20 17 85 0 85.0 0 20 40 130 <br /> M & P xylene ND 40 35 87 5 87 5 0 20 43 - 152 <br /> Analyst: DAO * = Values Outside QC Range <br /> Sequence Date 03/31/95 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked 9503A37-04A ND = Not Detected/Below Detection Limit <br /> Sample Fite ID SS_902 TXO % Recovery = (( <1> - <2> ) / <3> ) x 100 <br /> Method Blank File ID: LCS % Recovery = (<1> / <3> ) x 100 <br /> Blank Spike File 10; SS,_,,,893 TXO Relative Percent Difference = 1(<4> - <5> / [(<4> + <5> ) x 0 53 x 100 <br /> Matrix Spike File ID• SS-925 TXO (**) = Source- SPL-Houston Historical Data <br /> Matrix Spike Duplicate File ID SS-926 TXO (***) = Source SPL-Houston Historical Data <br /> I � <br /> , <br /> v <br /> , f , <br /> , I <br /> h <br /> SAMPLES IN BATCH(SPL ID): 9503C45-05A 9503045-06A 9503C45-04A 9503A54-02A <br /> 9503A54-01A 9503987-05A 9503988-09A 9503988-OBA <br /> 9503988-03A 9503987-05A 9503A37-05A 950307-07A <br /> I I <br /> 9503A37708A 9503A37I-06A 9503752-05A 9503A37-04A <br /> , <br /> i I I 9503A37-03A' 950 7-02A ,19503A37,-01A <br /> Idelis Williams Officer <br /> Epi iEl'f I i ,Ii Illi�l' I �� i <br />