$(10$ points$)$ The Clean River drains a watershed that has an area of $10k{m}^2.$ 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:

Clean River Watershed Hydrograph

a$.(3)$ Calculate the baseflow for this watershed.

b$.(4)$ Calculate the runoff volume for this watershed that was generated by the storm thar produced the above hydrograph.

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