Since this is a steady-state solution we must change something in the system to make its behavior into the future different than what it has been in the past. The change we will make is introduce time-varying pumping rates to the well that we introduced in Section 5.4.
To do this, click on the yellow pin/marker representing the well in the map display. In the Well Input Options menu that appears, check the box next to Transient next to pumping rate (see Figure 81). Then click the Transient button to open the Transient Data Input submenu for the well (see Figure 81). The starting date should correspond to the starting date set in the Simulation Settings described above. Then we can enter time-varying pumping rate data into the provided table, where each line is a (time, rate) data pair, where time is measured as the number of days since the starting date, and rate is the pumping rate in cubic meters per day (if you use different units for pumping rate, you can use the multiplier to m3/day text field to convert to m3/day). A pumping rate assigned at a particular day will be used until the pumping rate changes at a later specified time. When you are finished entering the pumping data, click OK to close the submenu, then click OK to close the Well Input Options menu.