Rainfall intensities during each 30 minutes of a 150-minute storm are presented in the table below. For a basin of 500 acres, if the direct runoff was measured to be 105 acre-ft, find the D index in (in/hr). Time (min) 0-10 10-20 20-30 30-40 40-50 50-60 60-70 Rainfall Intensity (in/hr) 0.5 2.0 6.5 5.0 0.9 2.0 3.0

2. Complete the profile leveling notes in Table 1. Show the arithmetic check and sample calculations of your work. Draw a neat sideview sketch showing the location of all stations and indicate on the sketch all of the numbers in your completed table. Page 1 of 4 I Table 1 Station BS [ft] HI [ft] IS [ft] FS [ft] Elevation [ft] BM1 8.92 423.15 TP1 5.79 6.27 0+00 8.83 1+00 7.13 2+00 7.96 2+70.5 8.81 2+76.2 8.39 3+00 6.34 TP2 8.16 5.99 4+00 7.77 5+00 7.47 5+55.0 4.19 5+65.2 6.65 6+00 7.29 BM2 6.76

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Item 2 Part A What error results on a 20-m sight with a level if the rod reading is 1.7060 m but the top of the 4-m rod is 0.3 m out of plumb? Express your answer to two significant figures and include appropriate units. error = Submit Provide Feedback Value Request Answer Units ?