8. During a five-day period without rainfall, a detention pond has an average inflow of 1.5 cfs and outflow of 0.8 cfs. The seepage rate at the pond bottom is 2.8 inches per hour, while the evaporation rate from the pond water surface is 0.2 inches per hour. If the pond has a rectangular shape with a water surface area of 10,000 ft², determine the change in water level in inches. Is it increased or decreased? Why?
8. During a five-day period without rainfall, a detention pond has an average inflow of 1.5 cfs and outflow of 0.8 cfs. The seepage rate at the pond bottom is 2.8 inches per hour, while the evaporation rate from the pond water surface is 0.2 inches per hour. If the pond has a rectangular shape with a water surface area of 10,000 ft², determine the change in water level in inches. Is it increased or decreased? Why?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Subject is water system design
Transcribed Image Text:8. During a five-day period without rainfall, a detention pond has an average inflow of 1.5 cfs and
outflow of 0.8 cfs. The seepage rate at the pond bottom is 2.8 inches per hour, while the evaporation
rate from the pond water surface is 0.2 inches per hour. If the pond has a rectangular shape with a
water surface area of 10,000 ft², determine the change in water level in inches. Is it increased or
decreased? Why?
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