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SPL BATCH QUALITY CONTROL REPORT " HOUSTON LABORATORY 1 <br /> METHOD 8020 8880 INTERCHANGE DRIVE <br /> Z44!'-!w4Z HOUSTON,TEXAS 77054 <br /> PHONE(713)660-0901 <br /> Matrix: Aqueous Batch Id: VA.RE980308145500 <br /> Units: pg/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> <15. k t Recovery Range <br /> M19E ND 50 51 102 72 128 <br /> Benzene ND 50 57 114 61 - 119 <br /> Toluene ND 50 56 112 65 - i25 <br /> £[nyl3enzene ND 50 56 112 70 118 <br /> O Xylene ND 50 56 112 72 - 117 <br /> M & P Xylene ND 100 110 110 72 - 116 <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 RPP <br /> <2> <3> <1> c4> cl> <5> Max. Recovery Range <br /> l MTBE ND 20 23 115 .26 130 12.2 20 39 - 150 <br /> BENZENE 150 20 170 NC 170 NC NC 21 32 - 164 1 <br /> ( <br /> TOLUENE 3.3 20 26 114 28 124 B.40 .20 36 - 159 <br /> w <br /> HYLSENZENE 3.6 20 26 112 '29 127 12.6 19 52 - 142 <br /> 0 XYLENE 2.4 20 25 113 27 123 8.47 13 53 - 143 <br /> M & P XYLENE 4.9 40 51 115 55 125 8.33 17 53 - 1:4 <br /> ' = Values outside QC Range due to Matrix Interference (except RPD) <br /> Analyst: HS c Data outside Method Specification limits. <br /> Secuence Date: 03/08/98 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> 52L F❑ of sample spiked: 9803307-04A ND = Not Detected/Below Detection Limit <br /> Sample File ID: E_C1257.TXO t Recovery = [( <1> - c2> ) / <3> <br /> ] x 100 I <br /> Method Blank File ID: LCS k Recovery = (<1> / <3> 1 x 100 j <br /> Blank Spike File ID: E C1254.TXO Relative Percent Difference = j (<4> - <5> / [(<4> . <5> 1 x 0.51 x 100 <br /> Matrix Spike File ID: E_C1255.TXO (") = Source: SPL-Houston Historical Data (Ist 4 '971 <br /> Matrix Spike Duplicate File ID: E_C1256.TX0 (•'•) = Source: SPL-Hcust6n Historical Data (Ist Q '91) <br /> i <br /> SAMPLES IN HATCH(SPL ID) : 9803303-01A 9803171-OSA 9803153-OSA 9803153-06A <br /> 9803153-01A 9803172-12A 9802889-02A 9843171-OSA <br /> 9803303-03A 9803303-06A 9303303-04A 98033D3-05A <br /> 9803303-07A 9603153-OGA <br /> l <br /> �3 <br /> 1 ! <br /> z <br />