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An unconfined aquifer made up of silt loam has an initial piezometric surface of 40 m....

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Civil Engineering

An unconfined aquifer made up of silt loam has an initialpiezometric surface of 40 m. If wells 28 m and 15 m away from thepumping well have drawdowns of 4 m and 8 m, respectively, what isthe pumping rate (m3/d) of the well?

Based on this, if you wanted to keep the same drawdowns at theobservation wells, but needed a drawdown of 10 m in your pumpingwell, what diameter would the pumping well casing need to be?

Answer & Explanation Solved by verified expert
3.6 Ratings (305 Votes)
Answer 1 Pumping rate of the well from an unconfinedaquifer in m3d is given by Dupits equationQ where k permeability of aquifer 1md assumedh1 and h2    See Answer
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