A gravel-packed well with an effective diameter of 36 in is to be constructed in an aquifer with T = 2.6 x l04 gpd/ft and S = 2.3 x 10-5. The design flow of the well is 1000 gpm. Calculate the drawdown at the well (use r which is the distance from the pumping well = 18 in) with total withdrawals from storage after (a) 1 min, (b) 1 h, (c) 1 day, (d) 1 month, and (e) 1 yr of continuous pumping, at design capacity. Repeat the calculations for r = 1m and 100m. (conversions: 1m3/d/m = 80.517 g/d/ft, 1 in = 25.4 mm, 1 gpm = 5.45 m3/d)