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FATE AND TRANSPORT OUTPUT FILE, AREA III MTBE tart of DISSOLVED SOURCE GROUNDWATER MODEL OUTPUT ------------------------------------------------- GROUNDWATER MODEL CALCULATIONS Initial mass input to bring source area up to the required concentration in Gw (mg/d) 1 22E+07 Mass input rate for pulse source in Gw (mg/d) 2 55E+03 Mass input rate - (Darcy flux) * (source cont) = K * gradient * (source conc) Contaminant velocity in saturated zone Aquifer gradient 2 OOE-03 Hydraulic conductivity (m/d) S 0 KOC (m3/kg) 1 20E-02 Foc (g/g) 2 OOE-03 Retaration coefficelocitient 1 1 Seea -02 Retagdrdedvseepage velocity (m/d) 2 93E-02 Dispersion Calculations in saturated zone Distance used for dispersion calculations (m) 1 51E+02 Distance = (Dist to well) + (source Length)/2 Calculated longitudinal dispersivity (m) 16 Calculated transverse dispersivity (m) 5 3 Calculated vertical dispersivity (m) 6 OSE-02 GROUNDWATER CONCENTRATION (annual average) MTBE The maximum groundwater concentration (mg/1) 4 07E-04 Occurred at year 31 0 Concentration Time at well (yr) (mg/1) ----0-------------2 74E-09 2 0 2 18E-06 3 0 2 71E-05 4 0 9 08E-05 5 0 1 72E-04 6 0 2 47E-04 7 0 3 OSE-04 8 0 3 45E-04 9 0 3 70E-04 10 0 3 86E-04 11 0 3 95E-04 12 0 4 01E-04 13 0 4 04E-04 14 0 4 OSE-04 15 0 4 06E-04 16 0 4 06E-04 17 0 4 07E-04 18 0 4 07E-04 19 0 4 07E-04 20 0 4 07E-04 21 0 4 07E-04 22 0 4 07E-04 23 0 4 07E-04 24 0 4 07E-04 25 0 4 07E-04 26 0 4 07E-04 27 0 4 07E-04 28 0 4 07E-04 29 0 4 07E-04 30 0 4 07E-04 31 0 4 07E-04 32 0 4 07E-04 33 0 4 07E-04 34 0 4 07E-04 0 35 0 4 07E-04 36 0 4 07E-04 37 0 4 07E-04 38 0 4 07E-04 39 0 4 07E-04 40 0 4 07E-04 41 0 4 07E-04 Page 1