The formation of a valley has a hydraulic conductivity of 400 ft/day and porosity of 0.25. The water table gradient was found to be 1 ft over 1000 ft. using two observation wells. The average depth of water table in the aquifer is 100 ft. (a) Determine the rate of flow per unit width of the aquifer.
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- Answer question 61. A confined aquifer is recharged by a continuous supply of water from the certain source. The average thickness of the aquifer was determined to be 18 m and the average width is 8 km. The hydraulic conductivity of the aquifer was obtained at 60 m/day and its void ratio is 0.1586. The piezometer heads in two wells 2,145m apart are 128 meters and 188 meters from a common reference datum. Determine: •compute the rate of flow through the aquifer in m3/day •compute the seepage velocity in m/day •compute the time of travel from the head of the aquifer to a point 8 km downstream in daysThe formation of a valley has a hydraulic conductivity of 400 ft/day and porosity of 0.25. The water table gradient was found to be 1 ft over 1000 ft. using two observation wells. The average depth of water table in the aquifer is 100 ft. (a) Determine the rate of flow per unit width of the aquifer. (b) How long it will take the groundwater to travel from the head of valley to the stream bank if the total distance is 1 mile (assume, porosity = 0.25).
- Kindly give me right solution with step by step.5. From the figure shows an unconfined non homogeneous aquifer between two water bodies at depth of 50 m and 45 m. respectively. Compute the average coefficient of permeability of the aquifer and the rate of flow. K2= 30 m/sec K1= 20 m/sec 50 m 45 m 1000 m 800 mA well penetrates an unconfined aquifer, with undisturbed water level (ho) equal to 21m. After pumping the well at a constant rate of Q = 0.07 m/s, the steady-state drawdown at distances of 45 m and 110 m from the well are 3 m and 1 m. respectively. Assume the void ratio as 0.2. Compute the hydraulic conductivity of the aquifer. 215.0 m/day what is the porosity 0.16 find the darcy velocity in m/day 69.4 m/day
- 2. An aquifer has a hydraulic conductivity of 180 ft/day, and effective porosity of 33% and is under a hydraulic gradient of 0.0004. a) Compute the Darcy velocity (also called Darcy flux). b) Compute the actual velocity (also known as the average linear velocity). c) The water temperature was 14 Degree C, and the mean pore diameter was 0.30 mm. d) Was it permissible to use Darcy's law under these circumstances? e) What is the reason for your answer?7.22P3. 3. Please give the solution and the correct answer.
- A confined aquifer has hydraulic conductivity of the aquifer, K =50 m/day and 0.2 of porosity. The piezometric head in two wells are 55 m and 50 m, respectively, which 1000 m apart to each other. The average thickness and width of the aquifer are 25 m and 5 km, respectively. Estimate (i) The flowrate through the aquifer. Based on the result, describe the type of layer as shown in TABLE Q5(a) in terms of storability effect. (ii) Time of travel from the head of the aquifer to downstream of 3.5 km by assuming no dispersion or diffusion along the aquifer. Discuss on what would happen if there are dispersion or diffusion occur along the aquifer due to pumping activityA confined aquifer is 50 m thick and 0.5 km wide. Two observation wells are located 1.4 km apart in the direction of flow. Head in well A is 50,0 m and in well B is 42 m. Hydraulic conductivity K is 0.7 m/day. What is the total daily flow of water through the aquifer? (m^3)Answer the following environmental engineering practice questions.