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TesUAmerica <br />' ANALYTICAL TESTING CORPORATION <br /> 2960 FOSTER CRLIGHTON DRIV6 - NASHIMLE TLNNESSEE 37204 <br /> 800 765 0980 • 615 726-3404 FAx <br /> 1 <br /> ROJECT QUALITY CONTROL DATA <br /> roject Number: <br /> Project Name: EXXONMOBIL 7-3708 <br /> tage: I <br /> aboratory Receipt Date: I2/ 7/04 <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/MSA 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 /> ==UST A1aAs,xsls** <br /> Benzene mg/l 0 2B6 0 352 0 0500 132 50 - 160 691 190794 <br /> Toluene mg/1 1 07 1 09 0 0500 40# 51 - 157 691 190794 <br /> £thylbenzene mg/l 0 509 0 545 0 0500 72 47 - 159 691 170794 <br /> Xylenes (Total) mg/l 1 73 1 BO 0 100 70 51 - 152 691 190794 <br /> TPH (Gasoline Range) mg/1 c 0 0500 1 07 1 00 107 43 - 150 691 19D794 <br /> BTEX/GRO Surr a a,a-TFT t Recovery 186 69 - 132 691 <br /> VOA Suri 1,2-DCA-d4 % Rec 90 73 - 127 2432 <br /> VOA Surr Toluene-dB % Rec 92 79 - 113 2432 <br /> VOA Surr, 4-BFB k Rec 101 79 - 125 2432 <br /> VOA Surr DBFM : Rec 94 75 - 134 2432 <br /> I Matrix Spike Duplicate <br /> Analyte units Orig Val Duplicate RPA Limit Q C Batch <br /> *•UST PARAMETERS** <br /> Benzene mg/l 0 352 0 346 1 14 30 691 <br /> Toluene mg/1 1 09 1 OB 0 92 37 691 <br /> £thylbenzene mg/1 0 545 0 539 1 11 36 691 <br /> Xylenes {Total, mg/l 1 80 1 79 0 56 33 691 <br /> TPH (Gasoline Range) mg/l 1 07 1 02 4 78 27 691 <br /> BTEX/GRO Surr , a a a-TFT Recovery 198 691 <br /> IProject QC continued <br /> Www lestomericainc corn <br /> TestAmenca Analytical Testing Corporation I TestAmerica Drilling Corporation I TestAmenca Air Emission Corporation <br />