Question: Problem 1. Graphical Solution to Flow Net On the next page is a water table map with a stream. The transmissivity (T of this phreatic



Problem 1. Graphical Solution to Flow Net On the next page is a water table map with a stream. The transmissivity (T of this phreatic aquifer is 1.75E-4 ms and it has a hydraulic conductivity of 7.0E-6 m s (b 25 m). The aquifer has a porosity of 0.22. a - Draw a flow net for this problem. Use bi-linear interpolation to construct a water table contour interval (Ah) of 1 m. (40 pts) b -Is this a losing or gaining stream? (5 pts) c- Compute the flow (QmTAh) into/out of the stream in m day. Note that streamlines can terminate and originate at the stream and symmetry of the flow lines on either side of the stream is not required. (15 pts) d -Determine the travel time from Point A to B in days. Travel time is given by ns t _ , 1 case, from one contour line to the next), , is the incremental distance (in m) between two adjacent head contours in your flow net along the stream line connecting points A and B, K is hydraulic conductivity, Ah is the contour interval (1 m) of the water table in your flow net, and n is porosity. Note that i=1,2,3, N where N is the total number of head drops between point A and point B.(20 pts) where A is the travel time between an individual head drop (1 m in this
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