Step 1: Run the model and then go to the Junction Summary in Report Manager and select all of the nodes in your model.
Step 2: Copy the Maximum Surcharge Height over Highest Pipe Crown Column
Step 3: Make and Insert a New Editable Field in the Junction Information Table by Pasting the information you just copied from the Junction Summary Output Column.
Step 4: Use the Map Display Command and use Existing DB as the Source and the newly created variable Junction_Surcharge_Depth
Step 5: Use the Option Show Label Properties and adjust the Font to show the maximum surcharge depth.