5.15A fully penetrating well in an unconfined aquifer pumps at a constant rate of 2000 m³/day for a long time. Two observation wells located 20m and 160m from the well, show a difference in hydraulic head of 2.0m. If the undisturbed head is 250m above the sea level, and the head in the farthest well is 249m, (1) estimate the aquifer hydraulic conductivity, and (2) calculate the radius of influence of the well.

Structural Analysis
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5.15A fully penetrating well in an unconfined aquifer pumps at a constant rate
of 2000 m/day for a long tỉme. Two observation wells located 20m and
160m from the well, show a difference in hydraulic head of 2.0m. If the
undisturbed head is 250m above the sea level, and the head in the farthest
well is 249m, (1) estimate the aquifer hydraulic conductivity, and (2)
calculate the radius of influence of the well.
Transcribed Image Text:5.15A fully penetrating well in an unconfined aquifer pumps at a constant rate of 2000 m/day for a long tỉme. Two observation wells located 20m and 160m from the well, show a difference in hydraulic head of 2.0m. If the undisturbed head is 250m above the sea level, and the head in the farthest well is 249m, (1) estimate the aquifer hydraulic conductivity, and (2) calculate the radius of influence of the well.
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