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Pumping from two aquifers: two pumping wells

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Pumping from two aquifers: two pumping wells

 

"Pumping from two aquifers: two wells" dialog box.

 

Explanatory table

"Q, m^3/day" text box

Constant pumping rate of a well (screen in bottom aquifer)

"Q2, m^3/day" text box

Constant pumping rate of a well (screen in the upper aquifer)

"t, day" text box

Time for which drawdown is calculated

"s, m" text box

This field shows the drawdown calculated in the upper aquifer. Entering a value in this field re-calculates the pumping rate

"T2, m^2/day" text box

Transmissivity of the upper aquifer

"a2, m^2/day" text box

Hydraulic diffusivity of the upper aquifer

"t', day" text box

The delay in the beginning of the pumping test in the upper aquifer

"s2, m" text box

This field shows the drawdown calculated in the upper aquifer. Entering a value in this field re-calculates the pumping rate

"B2, m" text box

Leaky factor for the upper aquifer

"k, m/day" text box

Hydraulic conductivity of bottom aquifer

"a, m^2/day" text box

Hydraulic diffusivity of bottom aquifer

"B, m" text box

Leaky factor for bottom aquifer

"m, m" text box

Bottom aquifer thickness

"r, m" text box

Distance from the pumping well to an observation well in bottom aquifer

"r2, m" text box

Distance from the pumping well to an observation well in the upper aquifer

"T, m^2/day" text box

Transmissivity of bottom aquifer

"S, --" text box

Storage coefficient of bottom aquifer

"Ss, 1/m" text box

Specific storage of bottom aquifer

 

Equations for bottom (1) and upper (2) aquifer: