A major storm event was recorded for Little Bear Creek. The incremental rainfall and measured hydrograph data for this storm are provided in Table P2-12 in 1-hr increments. The drainage area for the basin is 3.25 mi2. Assume base flow for Little Bear is zero. (See Fig. 1.26).
(a) Using the storm hydrograph, estimate the volume of runoff that occurred in inches over the watershed.
(b) Estimate the volume of infiltration in inches for this storm event based on the measured rainfall.
(c) Estimate the time to peak t for this watershed for the entire storm event.

Table P2-12. Little Bear Creek Data Date/Time Incremental Precipitation (in.) Flow (cfs) 0.0 0.5 0.5 0.6 14 6/8/01 6/8/01 17:00 6/8/0 18:00 6/8/01 6/8/01 20:00 6/8/01 21:00 6/8/0 22:00 6/8/0 23:00 6/9/0 0:00 6/9/0 1:00 6/9/01 2:00 6/9/01 3:00 16:00 0 0.05 0.04 19:00 0.08 0.05 0.42 32 54 78 0.3 0.14 0.19 0.45 105 158 201 228 6/9/01 4:00 6/9/0 5:00 6/9/01 6:00 6/9/01 7:00 6/9/01 8:00 6/9/0 9:00 6/9/01 6/9/01 6/9/01 6/9/01 13; 6/9/01 0.01 258 272 225 189 142 119 98 0 10:00 11:00 12:00 13:00 14:00 42 27