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I <br /> TestAmerica <br />' ANALYTICAL TESTING CORPORATION <br /> 2960 FOSTER CkEIG H70N DRIVE NASEIYELLE TENNESSEE 37204 <br /> 800-765-0980 615-726-3404 FAX <br /> i <br /> I <br /> ROJECT QUALITY CONTROL DATA <br /> roject Number: <br /> Project Name: EXXONNOBIL 7-3708 <br /> lage: 1 <br /> aboratory Receipt Date: 6/30/05 <br /> 1 <br /> Matrix Spike Recovery <br /> Note if Blank is referenced as the sample spiked insufficient volume was received for the defined analytical batch for <br /> MS/MSD analysis on an true sample matrix Laboratory reagent water was used for QC purposes <br /> Analyte units Orig Val MS Val Spike Conc Recovery Target Range Q C Batch Spike sample <br /> --------------- ------- ---------- --------- ---------- --------- ------------ ---------- ------------ <br /> ••LEST ANALYSIS*• <br /> Benzene mg/1 c 0 04050 0 0496 0 0500 99 50 - 16D 44SS 05 A94473 <br /> Toluene mg/l 4 0 0005 0 0481 0 0500 96 51 - 157 4455 05-A94473 <br /> Ethylbenzene mg/l c 0 GODS D 0538 0 0500 108 47 - 159 4455 05-A94473 <br /> Xylenes (Total) mg/l c 0 0005 D 105 0 100 105 51 - 152 4455 05-A94473 <br /> TPH (Gasoline Range) mg/l c 0 0500 1 04 1 00 104 43 - 15D 4455 05-A94473 <br /> BTEX/GRO Burr , a,a a-TFT % Recovery 122 63 - 134 4455 <br /> VOA Surr 12-DCA-d4 4 Rec 104 70 - 130 3386 <br /> VOA Surr 1,2-DCA-d4 % Rec 103 70 - 130 4264 <br /> VOA Surr 1 2-DCA-d4 4 Rec 103 70 - 130 4813 <br /> VOA Surr Toluene-d8 % Rec 110 78 - 123 3386 <br /> VOA Surr Toluene-d8 Ik Rec 111 78 - 121 4264 <br /> VOA Surr Toluene-d8 Ts Rec 111 78 - 121 4813 <br /> VOA Surr, 4-BFB !� Rec 101 78 - 126 3386 <br /> VOA Surr, 4-HFH $ Rec 106 78 - 126 4264 <br /> VOA Surr, 4-BFB % Rec 1D9 78 - 126 4813 <br /> VOA Surr, DBFM k Rec 105 79 - 122 3386 <br /> I <br /> VOA Surr, DBFM % Rec 103 79 - 122 4264 <br /> VOA Surr, DBFM t Rec 102 79 - 122 4813 <br />' Matrix Spike Duplicate <br /> Analyte units Orig Val Duplicate RPD Limit Q C Batch <br /> --------------- ------- ---------- ---------- ---------- ----- ---------- <br />' PrO]ect QC continued <br /> www testamerlcainc com <br /> TestAmereca Analytical Testing Corporation I TestAmenco Drilling Corporation 1 TestAmerico Air Emission Corporation <br />