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TestAmerica <br />' ANALYTICAL TESTING CORPORATION <br /> 1'9h0 fir. i R t xi it lint DRI1L 11�,m u T ��r�,r 3372()4. <br /> 800 763-0980 . h13 72u 3404 f i� <br />,PROJECT QUALITY CONTROL DATA <br /> Project Number: <br /> Project Name: EXXONMOBIL 7-3708 <br /> Page: 2 <br />'Laboratory Receipt Date: 3/19/03 <br />' VOA Surr 1 2-DCA-d4 i Rec 109 1345 <br /> VOA Surr 1 2-DCA-d4 Rec 105 4975 <br /> VOA Surr Toluene-d8 Rea 100 1345 <br />' VOA Surr Toluene-de Rec 99 4975 <br /> VOA Surr 4-BFB $ Rec 98 1345 <br /> VCA Surr 4-BFB & Rec 100 4975 <br /> VOA Surr DBFM & Rec lee 1345 <br />' VOA Surr DBFM k Rec 99 4975 <br /> Laboratory Control Data <br /> Analyte units known Val Analyzed Val Recovery Target Range Q C Batch <br /> **UST PARAMETERS** <br /> Benzene mg/l 0 100 0 111 111 74 - 124 3690 <br /> Toluene mg/1 0 100 0 109 109 74 - 121 3690 <br /> Ethylbenzene mg/l 0 100 0 108 109 75 - 123 3690 <br /> Xylenes (Total) mg/l 0 200 0 215 108 72 - 120 3690 <br /> TPH (Gasoline Range) mg/l 1 00 0 984 98 61 - 139 3690 <br />' 3TEX/GRO Surr a,a a-TFT k Recovery 114 69 - 132 3690 <br /> Laboratory Control Data <br /> Analyte unitsKnown Val Analyzed Val Recovery Target Range Q C Batch <br /> -- <br /> '*VOAPARAMETERS** <br /> Ethyl-t-bucylether mg/1 0 0500 0 0450 90 69 - 142 1345 <br /> Ethyl-t-butylether mg/1 0 0500 0 0439 a8 69 - 142 1.345 <br />' tert-amyl methyl ether mg/L 0 0500 0 0477 95 70 - 141 1345 <br /> tent-amyl methyl ether mg/L 0 0500 0 0468 94 70 - 141 1345 <br /> Teztiary butyl alcohol mg/1 0 500 0 467 93 35 - 157 1345 <br /> Tertiary butyl alcohol mg/l 0 500 0 462 92 35 - 157 1345 <br />' Tertiary outyl alcohol mg/l 0 500 a 462 92 35 - 157 4820 <br /> Tertiary butyl alcohol mg/l 0 500 0 Soo :00 35 - 157 4975 <br /> -l ect QC continued <br />' - www tesromericainc cam <br /> restAmerica analytical Testing Corporation I iestAmerica Drilling Corporalion TesfAmerrca Air Emission Corporolion <br />