Remove the spaces from the following sentence: The dam authorities must decide the proper excess capacity to maintain based on the trade-off they see between the value of stored water versus the value of flood control.
Thedamauthoritiesmustdecidetheproperexcesscapacitytomaintainbasedonthetrade-offtheyseebetweenthevalueofstoredwaterversusthevalueoffloodcontrol.