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1 <br /> Table 3. Total Mass of Dissolved MTBE <br />' Dissolved MTBE plume calculation summary: <br /> For the calculated volumes the MTBE mass range is 4070-6100 grams. <br />' Vl contains a total plume mass of 4068 grams of MTBE. <br /> V2 contains a total plume mass of 6101 grams of MTBE. <br />' A)MTBE area of plume with concentrations greater than 1,000 ug/L (ppb) <br /> MW-21 = 8,750, MW-20=4,620,MW-1 =2,540, AVG=5,300 ug/L <br /> R1 = 35' <br />' <br /> R2= 125' <br /> A= n(17.5)(62 5)=3434 ft <br /> V, =(3434 ft)(10 ft)(0.58) = 19,920 fl (28 317 L/ft) =5.641E+05 L groundwater <br />' V2=(3434 ft)(15 ft)(0.58) =29,880 ft(28 317 L/ft) =8.461E+05 L groundwater <br /> 5 6441 E+05 L x 5,300 ug/L. =2,990E+09 ug MTBE=2.990 a MTBE <br /> 8 461 E+05 L x 5,300 =4 484E+09 ug MTBE=4J84 g MTBE <br />' B ) MTBE area of plume with concentrations greater than 100 ug/L (ppb) <br /> MW-3R=945 ug/L, MW-9 = 871 ug/L,MW-17 = 193 ug/L, AVG=670 ug/L <br /> R, = 190' <br />' R2 = 85' <br /> A=in(95)(42 5) = 12,678 ft' <br /> V1 =(12,678 ft )(10 ft)(0 58)= 73,531 A' (28: 317 L/fl) =2.082E+06 L <br /> • V2=(12,678 ft2)(15 ft)(0 58) = 110,296 ft (28.317 L/ft)=3.123E+06 L <br /> Note- Volumes for the outer plume must have the previously calculated volume deducted. <br /> V1 =2 082E+06 L—5 641E+05 L = 1.518E+06 L groundwater <br /> V2= 3.123E+06 L—8 461 E+05 L = 2.277E+06 L groundwater <br /> 1 518E+06 L x 670 ug/L= 1.017E+09 ug MTBE = 1017 MTBE <br /> 2 277E+06 L x 670 u = 1 526E+09 ug MTBE= 1,526, BE <br /> C.) MTBE area of plume with concentrations greater than 10 ug/L (ppb) <br /> MW-19 =80.2 ug/L <br />' R, =210' <br /> R2= 105' <br /> A= n(105)(52.5)= 17,309 fl2 <br /> V1 = (17,309 ft)(10 ft)(0.58)= 100,395 ft(28 317 L/ft)=2.843E+06 L <br />' <br /> V2=(17,309#12)(15 ft)(0 58) = 150,590 W (28.317 L/ft )=4.264E+06 L <br /> V, =2 843E+06 L—2 082E+06 L= 7.608E+05 L groundwater <br />' <br /> V2=4 264E+06 L—3 123E+06 L= 1.141E+06 L groundwater <br /> 7 608E+05 L x 80 ug/L =6.087E+07 ug MTBE=61 g MTBE <br /> 1 141E+06 L x 80 u = 9 130E+07 ug MTBE =91 a MTBE <br /> 1 � <br /> 4 <br />