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9 - - <br /> TABLE 3 <br /> ESTIMATED HYDROCARBON MASS REMOVAL RATE <br /> GROUNDWATER REMEDIATION SYSTEM <br /> 8200 N Highway 99, Stockton, CA <br /> AVG CONCENTRATIONS(ug/L) ESTIMATED MASS REMOVED(pounds) <br /> PERIOD ENDING PERIOD ETHYL- ETHYL- <br /> DATE VOLUME TPHG BENZENE TOLUENE BENZENE XLENES MTBE TPHG BENZENE TOLUENE BENZENE XLENES MTBE <br /> (gallons) <br /> 11/10/03 4220 20500 2650 1500 190 810 8950 072 009 005 001 003 031 <br /> 11/17/03 14225 15500 2550 1100 155 655 9750 184 030 013 002 008 1 15 <br /> 12/15103 14645 13500 2500 1200 103 550 10500 165 030 015 001 007 128 <br /> 12/22/03 16128 20000 3150 2150 93 695 15000 269 042 029 001 009 201 <br /> 12/30/03 13032 23500 3850 2950 135 940 18000 255 042 032 001 0 10 195 <br /> 01/05/04 11330 1 24500 4100 3200 170 1075 16000 231 039 030 002 010 151 <br /> 02/09/04 65072 26000 3700 3500 190 1350 10450 1409 200 190 010 073 566 <br /> 03/08/04 52152 24500 3200 3700 185 1400 6050 10 64 1 39 161 008 061 263 <br /> 03/30/04 34909 25000 3300 3900 180 1300 6200 727 096 113 005 038 180 <br /> 04/14/04 15373 19000" 2400 3400 130 1 1100 3400 1 243 031 044 002 1 01 044 <br /> 05/10/04 28700 12000* 1400 2000 78 670 3300 287 1 033 1 048 002 016 079 <br /> 06/14/04 41994 16000* 1600 2500 160 760 3600 559 056 087 006 027 126 <br /> 06/28/04 14082 16000* 1600 2500 160 760 3600 1 88 019 1 029 002 0 09 042 <br /> CUMULATIVE 325862 5652 767 796 043 284 21 22 <br /> TOTALS <br /> Notes <br /> `=Estimated concentration extrapolated from BTEX&MTBE concentrations <br />