Consider a lot which is $60\%$ impervious area and $40\%$ pervious. Assume that theimpervious CN is $98$ and the pervious CN is $60.$Using the NRCS runoff equation with each of the following variations, compute the runoffas a function of rainfall, for rainfall amounts of zero to six inches, in increments of $0\mathrm{.}5$inches. Give results in a table as well as on a single plot.$(1)(3$ pts$)$ Based on an area$-$weighted composite curve number, assuming that the impervious area is directly connected to the storm sewer system.$(2)(3$ pts$)$ Based on an area$-$weighted runoff, assuming that the impervious area is directlyconnected to the storm sewer system.$(3)(4$ pts$)$ A developer purchased a $3-$acre farm in Sun Prairie, WI$.$ A $30,000$ sq ft asphalt parking lot will be placed on the land. Local regulations require the post development runoff be limited to pre$-$development runoff for a $100-$year, $24-$hour rainfall. Find the change in peak runoff from the pre$-$development to the post$-$development. The pre$-$developmentTc$=0\mathrm{.}5$ hours and post$-$development Tc$=10$ minutes. Use WinTR$-55$ and report the reports from the model.$\text{'}$