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** SPL BATCH QUALITY CONTROL REPORT ** PAGE i <br /> METHOD 8020 <br /> O <br /> Matrix: Aqueous Batch Id: HP R941008183000 <br /> Units: µg/L <br /> L B ORATOR � C O M R O L 5 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 54 - 126 <br /> Toluene ND 50 45 90 0 61 - 125 <br /> EthytBenzene ND 50 35 70.0 57 - 129 <br /> 0 Xylene ND 50 36 72.0 32 - 160 <br /> M 8 P Xylene ND 100 88 88.0 32 - 160 <br /> M A I R I X S P I K E S <br /> S P I K E Sample Spike Matrix Spike Matrix Spike MS/MSO 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> Maus. I Recovery Range <br /> Benzene ND 20 20 100 20 100 0 19 61 - 131 <br /> Toluene ND 20 19 95 0 20 100 5.13 18 57 - 127 <br /> Ethy(Benzene ND 20 12 60 0 12 60.0 0 18 55 - 131 <br /> 0 Xylene ND 20 10 50 0 10 50.0 0 20 40 - 130 <br /> M 8 P Xylene ND 40 27 67 5 27 67 5 0 16 43 - 152 <br /> Qa—Lyst JZL * = Values Outside QC Range <br /> Sequence Date: 10/08/94 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked: 9410007-OIA RD = Not Detected/Below Detection Limit <br /> Sample File ID R_958.TXO % Recovery = I( <5 - <2> ) / <3> 3 x 100 <br /> Method Blank File ID: LCS % Recovery a (<1> / <3> ) x 100 <br /> Blank Spike File ID: R-948.TX0 Relative Percent Difference = 1(<4> - <5> / [(<4> + <5> ) x 0.53 x 100 <br /> Matrix Spike File 10 2_949 TXO (**} = Source SPL-Houston Historical Data <br /> Matrix Spike Duplicate File ID: R____950.TXO (***) = Source. SPL-Houston Historical Data <br /> , <br /> SAMPLES IN BATCH SPL TO): 941COD8-06A 9410008-05A 9410010-01A 9410008-04A I ' <br /> 9410008-03A 9410008-02A 9410008-OIA 9410007-IOA <br /> 9410007-09A 9410007-06A 9410007-OBA 9410007-07A <br /> 9410007-OSA 9410007-04A 9410007-03A 9410007-02A <br /> 1 , 9410007-01A ' 9410009-07A 94100!0!9-06A E <br /> it <br /> 2 i <br /> Idelis wll ams, QC Officer <br /> I I ' <br /> k, <br />