A semi-confined aquifer is separated from an overlying semi-unconfined aquifer by an aquitard. The bottom, semi-confined,...

 

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A semi-confined aquifer is separated from an overlying semi-unconfined aquifer by an aquitard. The bottom, semi-confined, layer is 2 m thick, has a hydraulic conductivity of 1 m/day and has a hydraulic head of 10 m above the base. The aquitard is 2 m thick and has a hydraulic conductivity of 0.01 m/day. The head in the overlying, semi-unconfined aquifer is at a level of 8 m above the base of the bottom aquifer. (a) (10 points) What is the leakage coefficient of the aquitard? (b) (10 points) What is the specific discharge of the leakage between the two aquifers and in which direction does the leakage flow? (c) (10 points) What is the leakage factor for the semi-confined aquifer? A semi-confined aquifer is separated from an overlying semi-unconfined aquifer by an aquitard. The bottom, semi-confined, layer is 2 m thick, has a hydraulic conductivity of 1 m/day and has a hydraulic head of 10 m above the base. The aquitard is 2 m thick and has a hydraulic conductivity of 0.01 m/day. The head in the overlying, semi-unconfined aquifer is at a level of 8 m above the base of the bottom aquifer. (a) (10 points) What is the leakage coefficient of the aquitard? (b) (10 points) What is the specific discharge of the leakage between the two aquifers and in which direction does the leakage flow? (c) (10 points) What is the leakage factor for the semi-confined aquifer?

Answer rating: 100% (QA)

a Leakage Coefficient of the Aquitard The leakage coefficient L of an aquitard can be calculated using Darcys law for vertical flow through a confined ... View the full answer