A pump extracts 0.12 m^3/s of groundwater. One observation well that is 600m away from the pump shows a drawdown of 0.5m from the original water table of 120m elevation. The hydraulic conductivity of the system is 38m/day. A. Determine the elevation of water table at the pump casing with diameter of 50cm. B. Determine how far in meters from the pump its influence or no drawdown effect on water table.

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Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.