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** SPL BATCH QUALITY CONTROL REPORT ** PAGE 1 <br /> Zia -04Z METHOD 8020 <br /> O <br /> Matrix: Aqueous Batch Id: HP_U941216203500 <br /> Units: Ag/L <br /> L A B O R A T O R Y C 0 M T R 0 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> % % 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 Semple Spike Matrix Spike Matrix Spike MS/MSD QC Limits(***) <br /> C O M P O 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 HD 20 11 55 0 * 16 80 0 37.0 * 1 19 61 - 131 <br /> Toluene ND 20 10 50 0 * 15 75.0 40.0 * 18 57 - 127 <br /> EthylBenzene 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 /> . N & P Xylene ND 40 1 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 = Mot 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.TX0 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.TX0 Relative Percent Difference = I(<4> - <5> I / C(<4> + <5> ) x 0 53 x 100 <br /> Matrix Spike File ID: U_616.TX0 (**) = Source SPL-Houston Historical Data <br /> Matrix Spike Duplicate File ID: U_619.TX0 (***) = Source SPL-Houston Historical Data <br /> , 1 <br /> I <br /> ,SAMPLES IN BATCH(SPL ID): 9412729-OSA 9412729-04A 9412729-06A 9412545-03A " E <br /> 9412545-04A 9412545-05A 9412545-01A 9412545-02A <br /> I � I 9412475-04A 9412474-05A 9412474-06A 9412474-07A ` <br /> 9412474-0SA, 9412474-09A 9412474-10A 9412475-01A <br /> II 9412475-02A 19412475-03Aj9412474,,-11A <br /> � I 1 I i <br /> 1 , <br /> Idelis Williams, QC Officer <br /> I1 I,I rl 1 1 V <br />