An unconfined aquifer has experienced an average water level drop of 11-ft over the past year. If the area of the aquifer is 30,000 ft², the transmissivity is 100(10)-5 ft² and the specific yield is 0.25, what volume S of water (in ft³) has actually been lost or gained (specify) from storage over the year period?

An unconfined aquifer has experienced an average water level drop of 11-ft over the past year. If the area of the aquifer is 30,000 ft², the transmissivity is 100(10)-5 ft² and the specific yield is 0.25, what volume S of water (in ft³) has actually been lost or gained (specify) from storage over the year period?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Groundwater Flow

The term groundwater refers to the water which is found beneath the earth's surface. Pores present in the soil and rocks with fractures make a passage for rainwater to enter the earth's surface and deposit as groundwater. The flow nature and direction of groundwater under the earth's surface directly impacts the strength and compressibility of the soil, which reflects its ability to support structural loads.

Question

An unconfined aquifer has experienced an average water level drop of
11-ft over the past year. If the area of the aquifer is 30,000 ft², the
transmissivity is 100(10)-5 ft² and the specific yield is 0.25, what volume
S
of water (in ft³) has actually been lost or gained (specify) from storage
over the year period?

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