Calculate the peak and volume of runoff for the single-family home shown below during a 30-minute storm having 3.2 in./h intensity. Perform the calculations for the following cases:

a. Direct discharge from pavements

b. Roof and driveway drain to lawn and landscape

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Lawn A = 7200 ft Driveway A = 800 ft Roof Landscape 1600 ft2- A = 1800 ft Given: L = 0.4 in. lawn L = 1.2 in. landscape S = 0.08 in. driveway S = 0.04 in. roof Landscape: A = 1600 ft K = 5 in./h