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TestAmerica <br /> ANALYTICAL TESTING CORPORATION <br /> {� 3960 I'`OJTER I,REIL I{IUV DK11L V15115 FIIF .37204 <br /> 800-760-0980 b13-726-3404 F5\ <br /> tROJECT QUALITY CONTROL DATA <br /> roject Number: <br /> Project Name: EXXONMOBIL 7-3942 <br /> age: 3 <br /> aboratory Receipt Date: 6/13/03 <br /> 1 <br /> Laboratory Control Data <br /> Analyte units Known Val Analyzed Val Recovery Target Range Q C Batch <br /> --------------- ------- ---------- ------------ ---------- ------------ --------- <br /> xylenes (Total) mg/l 0 200 0 206 103 72 - 116 8168 <br /> xylenes (Total) mg/1 0 200 0 208 104 72 - 116 931 � <br /> Xylenes (Total) mg/l 0 200 0 212 106 72 - 116 9739 <br /> Xylenes (Total) mg/l 0 200 0 172 86 72 - 116 933 <br /> Methyl-t-butylether mg/l 0 100 0 106 106 64 - 124 8168 <br /> Methyl-t-butylether mg/l 0 100 0 102 102 64 - 124 9739 <br /> Methyl-t-butylether mg/l 0 100 0 0851 85 64 - 124 933 <br /> TPH (Gasoline Range) mg/l 1 00 0 925 92 72 - 125 8168 <br />' TPH (Gasoline Range) mg/l 1 00 0 879 88 72 - 125 9739 <br /> TPH (Gasoline Range) mg/l 1 00 0 912 91 72 - 125 933 <br /> BTEX/GRO Surr a,a,a-TFT W Recovery 106 69 - 129 927 <br /> BTEX/GRO Surr a a,a-TFT $ Recovery 106 69 - 129 8168 <br /> BTEX/GRO Surr a a,a-TFT W Recovery 100 69 - 129 931 <br /> BTEX/GRO Surr a a a-TFT % Recovery 105 69 - 129 9739 <br /> BTEX/GRO Surr a,a a-TFT % Recovery 92 69 - 129 933 <br /> Laboratory Control Data <br /> Analyteunits Known Val Analyzed Val Recovery Target Range Q C Batch <br /> --------------- <br /> - - - <br /> **VOA PARAMETERS** <br /> Methyl-t-butyl ether mg/l 0 0500 0 0447 89 64 - 140 3309 <br /> Methyl-t-butyl ether mg/l 0 0500 0 0514 103 64 - 140 3309 <br /> VOA Surr 1,2-DCA-d4 t Rec 79 68 - 131 3309 <br /> VOA Surr 1 2-DCA-d4 9d Rec 8& 68 - 131 3309 <br /> VQA Surr Toluene-d8 & Rec 93 80 - 116 3309 <br /> VOA Surr Toluene-d8 96 Rec 94 80 - 116 3309 <br /> VOA Surr 4-HFH % Rec 94 73 - 130 3309 <br /> VOA Surr 4-HFH 9r Rec 89 73 - 130 3309 <br /> VOA Surr DBFM Rec 82 77 - 122 3309 <br /> Protect QC continued <br /> www tesfomencolnc com <br /> TestAmenca Sealy lcai Tzs ll,g Carpor011oro I Tesl4menc❑ Drilling Colporcl on 1 Te,fAlne-Ica Air EmI551on Corporation <br />