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31. What is the composite C value for the following drainage area for a 10-year storm recurrence interval?Drainage area: 0.25 acres of residential lots with 40% imperviousness (C = 0.49) 0.25 acres of lawn with 0.95% slope with 0% imperviousness (C = 0.22) 0.10 acres of impervious pavement (C = 0.95)
32. Which of the following is a potential safety or operational issue associated with a bridge spanning a recently repaved roadway that now has a vertical clearance of 4-inches less than posted?
34. When consuming drinking treated water, which of the following may be an indicator of water quality problems within a finished water storage facility?
35. When considering the surface overflow rates of primary settling tanks in a typical municipal wastewater treatment plant, which of the following statements is not correct?