$(15$ points$)$ The Clean River drains a watershed that has an area of $28\mathrm{.}8k{m}^2.$ A storm event over the watershed was capable of producing runoff. The DRH measured at the Clean River is given below. Use this information to solve the following:

a$.(3)$ Calculate the volume of water generated during the first three hours of runoff.

b$.(3)$ Calculate the peak runoff $($flow$)$ resulting from the storm.

c$.(3)$ Can this DRH be considered a Unit Hydrograph? Why or why not? Show calculations.

d$.(3)$ Calculate the Unit Hydrograph ordinate for the time period of $15-16$ hr$.$

e$.(3)$ What is the intensity of the precipitation event that generated this hydrograph?