Explain the well drawdown equations - ground water, Civil Engineering

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Explain the Well Drawdown Equations

Watch the units, especially if you use log₁₀ or ln.

h₁ = aquifer thickness minus the drawdown (ft) r₁ = distance from well (ft)

h₂ = aquifer thickness minus the drawdown (ft) r₂ = distance from well (ft)

If the answer is in units of Q = ft³/day, use K units = ft³/day-ft²

If the answer is in units of Q = gal/min or gal/day, use K units = gal/day-ft²

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