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2. A long and narrow gravel aquifer is present below a floodplain, as illustrated in the figure below. From excavations into the aquifer at nearby locations, you know the gravel has a hydraulic conductivity of 1.5 cm/s. You install a well at the end of the aquifer (Well 2), and another 250 m away (Well 1), and then pump water out of Well 2 at a rate of 700 cm³/s. For this steady pumping rate, the head in that well is 6 m, while the head in Well 1 is 8 m. What is the cross-sectional area of the aquifer to the nearest m²?

2. A long and narrow gravel aquifer is present below a floodplain, as illustrated in the figure below. From excavations into the aquifer at nearby locations, you know the gravel has a hydraulic conductivity of 1.5 cm/s. You install a well at the end of the aquifer (Well 2), and another 250 m away (Well 1), and then pump water out of Well 2 at a rate of 700 cm³/s. For this steady pumping rate, the head in that well is 6 m, while the head in Well 1 is 8 m. What is the cross-sectional area of the aquifer to the nearest m²?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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1. In well A, you measure a water table elevation of 82 m above sea level. In well B, which is 120 m away from well A, you measure a water table elevation of 76 m above sea level. What is the average magnitude of the hydraulic gradient between well A and well B to the nearest hundredth? 2. A long and narrow gravel aquifer is present below a floodplain, as illustrated in the figure below. From excavations into the aquifer at nearby locations, you know the gravel has a hydraulic conductivity of 1.5 cm/s. You install a well at the end of the aquifer (Well 2), and another 250 m away (Well 1), and then pump water out of Well 2 at a rate of 700 cm³/s. For this steady pumping rate, the head in that well is 6 m, while the head in Well 1 is 8 m. What is the cross-sectional area of the aquifer to the nearest m²?
Transcribed Image Text:1. In well A, you measure a water table elevation of 82 m above sea level. In well B, which is 120 m away from well A, you measure a water table elevation of 76 m above sea level. What is the average magnitude of the hydraulic gradient between well A and well B to the nearest hundredth? 2. A long and narrow gravel aquifer is present below a floodplain, as illustrated in the figure below. From excavations into the aquifer at nearby locations, you know the gravel has a hydraulic conductivity of 1.5 cm/s. You install a well at the end of the aquifer (Well 2), and another 250 m away (Well 1), and then pump water out of Well 2 at a rate of 700 cm³/s. For this steady pumping rate, the head in that well is 6 m, while the head in Well 1 is 8 m. What is the cross-sectional area of the aquifer to the nearest m²?
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