A development is being planned within a 250-acre watershed. The present land use is 120 acres of pasture, with soil type B(CN=61), and the rest soil type D (CN=80). The Tc is 54 min. and the 2-year, 24-hour storm depth is 4 in. The surface are of farm ponds is 1.0%. Determine the 2-year peak discharge prior to development using the TR-55 method. Assume Type II rainfall.