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TestAmerica <br /> ANALYTICAL TE57ING CORPORATION <br /> 2960 V rLR ( RF 11 If n\ DR15k k,111 IL I; TI \k»rh !7204 <br /> 300 7h3-0080 013-720 3404 1s\ <br /> iPROJECT QUALITY CONTROL DATA <br /> Pro3ect Number: <br /> Pro3ect Name: EXXONMOBIL 7-3708 <br /> fage: i <br /> aboratory Receipt Date : 3/19/03 <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 Orxg Val MS Val Spike Conc Recovery Target Range Q C Batch Spike Sample <br /> --------------- ------- ---------- --------- ---------- --------- ------------ ---------- ------------ <br /> **UST ANALXSSS** <br /> Benzene mg/l 0 126 0 173 0 0540 94 74 - 129 3690 03-A40927 <br /> Toluene mg/l 0 0255 0 0713 0 osoo 92 74 - 128 3690 03-A40927 <br /> • Ethylbenzene mg/l 0 0125 0 0520 0 0500 79 75 - 128 3690 03-A40927 <br /> Xylenes (Total) mg/1 0 0035 0 112 0 100 108 72 - 126 3690 03-A40927 <br /> TPH (Gasoline Range) mg/1 c 0 0500 0 964 1 00 98 59 - 128 3690 blank <br /> STEX/GRO Surr , a,a a-TFT % Recovery 122 69 - 132 3690 <br /> VRA Surr 12-DCA-d4 9r Rec 112 73 - 133 1345 <br /> VOA Surr 1 2-DCA-d4 5� Rec 105 73 - 133 4975 <br /> V0A Surr Toluene-dB %r Rec 99 80 - 121 1345 <br /> VOA Surr Toluene-d8 %- Rec 99 80 - 121 4975 <br /> VOA Surr 4-BFB 7r Rec 93 8o - 128 1345 <br /> VOA Surr 4-BF5 * Rec 97 80 - 12S 4975 <br />' VOA Surr DBFM 7r Rec 103 81 - 121 1345 <br /> VOA Surr DBFM g Rec 99 81 - 121 4975 <br /> Matrix Spike Duplicate <br />' Analyte units Orig Val Duplicate RPD Limit Q C Batch <br /> *`'UST PARAMETERS** <br /> Benzene mg/l 0 173 0 193 10 93 15 3690 <br /> Toluene Ing/1 0 0713 0 0892 22 314 15 3690 <br /> Etkxylbenzene mg/l 0 0520 0 0745 35 57# 15 3690 <br /> Xylenes (Total) mg/1 0 112 0 122 6 55 19 3690 <br /> TPH (Gasoline Range} mg/1 0 964 0 875 11 73 22 3690 <br />' 6TEX/GRO Surr , 3 a,a-TrT it Recovery 1�7 3690 <br /> )act QC cent_nued <br />' www te5tomerlcalnc com <br /> TestAmerlca Analytical Testing Corporonon I 'estAmerico Drilling Corporation 1 TestAmenco Air Emission Corporarlon <br />