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TesUmerica <br /> ANALYTICAL TESTING CORPORATION <br /> 2960 FOSTER CREIGHTON DRIVE • NASHVILLE TENNESSEE 37204 <br /> 800-765-0980 • 615-726-3404 FAX <br /> I ' <br /> r <br /> ROJECT QUALITY CONTROL DATA <br /> roject Number: <br /> roject Name: EXXONMOBIL 7-3942 <br /> lage: 2 <br /> aboratory Receipt Date: 6/30/04 <br />' **MISC PARAMETERS** <br /> chemical Oxygen Demand mg/1 19 0 69 0 50 0 100 80 - 12D 3158 04-A100004 <br /> Chemical Oxygen Demand mg/1 < 3 00 54 0 50 0 108 80 - 120 3158 04-A100236 <br /> Nitrate-N as N mg/1 < 0 300 9 03 9 00 100 BO - 120 2565 04-A10061$ <br /> Fluoride mg/l < 0 10 2 24 2 00 112 80 - 120 2565 04-AI00618 <br /> Sulfate mg/l < 1 00 15 7 15 0 105 80 - 120 2565 04-AIG0618 <br /> Total Organic Carbon mg/l 1 19 22 8 20 0 108 80 - 120 2866 04-A100856 <br /> I <br /> Matrix Spike Duplicate <br /> PAnalyte units Orig Val Duplicate RPD Limit Q C Batch <br />' **UST PARAMETERS** <br /> Benzene mg/i 0 0531 0 0489 8 24 21 4392 <br />' Toluene mg/1 0 0518 0 0483 6 99 25 4392 <br /> Ethylbenzene mg/1 0 0522 0 0489 6 53 25 4392 <br /> Xylenes (Total) mg/l 0 0973 0 0905 7 24 24 4392 <br /> Methyl-t-butylether mg/l 0 0466 0 0439 5 97 24 4392 <br /> TPH (Gasoline Range) mg/1 0 865 0 856 1 05 24 4392 <br /> BTEX/GRO Surr , a,a,a-TFT % Recovery 89 4392 <br /> VOA Surr 1,2-DCA-d4 % Rec 104 7281 <br /> VOA Surr Toluene-d8 % Ret 103 7281 <br /> VOA Surr, 4-BFB % Rec 89 7281 <br /> VOA Surr, DBFM % Rec 111 7281 <br />' **METALS** <br /> Arsenic mg/1 0 210 0 213 1 42 20 2454 <br /> Barium mg/1 2 91 2 97 2 04 20 2454 <br /> Cadmium mg/l 0 0510 0 0520 1 94 20 2454 <br /> Calcium mg/l 102 105 2 90 20 2454 <br /> Chromium mg/l 0 203 0 208 2 43 20 2454 <br /> Chromium, Hexavalent mg/l 0 102 0 101 0 99 20 2781 <br /> Copper mg/l 0 255 0 260 1 94 20 2454 <br /> Iron mg/l 2 92 3 33 13 12 20 2454 <br /> Project QC continued <br /> www testamericainc com <br /> TestAmenca Analytical Testing Corporation I TestAmerica Drilling Corporation I TestAmerica Air Emission Corporation <br />