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. TABLE 5 <br /> ESTIMATED VAPOR EXTRACTION SYSTEM HYDROCARBON MASS REMOVAL <br /> ' 102 S Wilson Way <br /> Stockton, California <br /> Page 6 of 6 <br /> 1 < <br /> Period hours Cum Hours Avg. Flow � Avg Vapor Mass Cumulative <br /> Cone. Removed Mass Removed <br /> {pg1f) Ubs) Ubs) <br /> 100 11900 350 85 11 12,640 <br /> ' 100 12000 350 80 11 12,651 <br /> 100 12100 350 75 10 12,661 <br /> 100 12200 350 70 9 12,670 <br /> 25 12225' 350 70 2 12,672 <br /> ' 1062 12331 240 (70) (7) (12,679) <br /> 4543 12785 330 585 328 13,007 <br /> ' 2574 13042 330 220 70 13,077 <br /> 3075 13349 320 210 77 13,154 <br /> ' 1686 13517 290 245 45 13,199 <br /> 2517 13768 350 1,400 1 461 13,660 <br /> � 1 <br /> Totals 13768 -- 13,660 F 13,660 <br /> 1 Notes Vapor concentrations graphically interpolated from laboratory analytical data Values <br /> in parentheses are extrapolated estimates <br /> ' 1 = System shut down on 01/03/00 <br /> 2 = System temporarily operated 08124-08128101 <br /> ' Begin Period of Intermittent Operation <br /> 3 = 03/18/02 - 03/23/02 & 03/25/02 - 04/08/02 <br /> 4 04/15/02 - 04/19/02 & 04/15/02 - 04/19/02 <br /> 5 05/06/02 - 05/28/02 <br /> 6 = 06/10/02 - 06/17/02 <br /> 7 = 11/21/03 - 12/03/03 <br /> ' roeklgmrVh15mass rem <br />