The Sat ET conc in UZT: Unsaturated-Zone Transport Package (MT3D-USGS) pane is on the MODFLOW Features tab of the Object Properties dialog box.
This tab is used for specifying the concentration of evapotranspiration from the saturated zone in the Unsaturated Zone Flow (UZF) package.
The data that can be specified in this pane are the Starting time, Ending time, and Saturated ET concentration (CGWET).
Starting time and Ending time are explained in the help for the MODFLOW Features tab.
CGWET is the concentration of ET fluxes originating from the saturated zone. As a default, this array is set equal to 0 and only overridden if the user specifies it.
