Based on 1D-Slope Toxics Test Case (EE7.1).zip, updated Toxic initial condition
Updated shear stress of cohesive (error in deposition>erosion)
DSI_INT3_1 Based on DSI_INT3
Lowered Bed Sediment Kd from 0.316 to 0.01
DSI_INT3_2 Based on DSI_INT3
Raised the porewater diffusion rate from 1E-09 to 1E-08
DSI_INT3_2 Based on DSI_INT3
Raised the cohesive surface erosion rate from 0.0000001 to 0.00001