time start = 0 yr, inlet-2 = 1/12 yr, end = 10 yr length = 600 m; width = 180 m; height = 1 m Nx = 200; Ny = 60 discharge left = 10 m/yr porosity = 30% dispersivity long = 3 m, trans = .3 m well 1 x = 50 m, y = 90 m, inject-1 = 300 m3/yr, inject-2 = 0 m3/yr scope = initial Na+ = 10 mmolal Pb++ = 1e-12 mmolal balance on Cl- scope inlet-1 = initial scope inlet-2 = initial scope inject-1 = initial Pb++ = 0.1 mmolal scope inject-2 = initial dxplot = 1/50 dx_init = .0001 suffix _fickian go porosity std_dev = 5% dispersivity 0 suffix _hetero go