Storage Coefficient from Distance-Drawdown Graphs Calculator

✖Transmissivity is the rate at which groundwater flows horizontally through an aquifer or the degree to which a medium allows something, in particular electromagnetic radiation, to pass through it.ⓘ Transmissivity [T]			+10% -10%
✖The Total Drawdown is referred as reduction in hydraulic head observed at a well in an aquifer, typically due to pumping a well as part of an aquifer test or well test.ⓘ Total Drawdown [s_t]			+10% -10%
✖The Distance from Pumping Well to Point Intersection is referred as the straight line which intersects the zero-drawdown line.ⓘ Distance from Pumping Well to Point Intersection [r_o]			+10% -10%

✖The Storage Coefficient is referred as volume of water released from storage per unit decline in hydraulic head in the aquifer, per unit area of the aquifer.ⓘ Storage Coefficient from Distance-Drawdown Graphs [S]

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Storage Coefficient from Distance-Drawdown Graphs Solution

STEP 0: Pre-Calculation Summary

Formula Used

Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2
S = 2.25*T*s_t/r_o^2
This formula uses 4 Variables

Variables Used

Storage Coefficient - The Storage Coefficient is referred as volume of water released from storage per unit decline in hydraulic head in the aquifer, per unit area of the aquifer.
Transmissivity - (Measured in Square Meter per Second) - Transmissivity is the rate at which groundwater flows horizontally through an aquifer or the degree to which a medium allows something, in particular electromagnetic radiation, to pass through it.
Total Drawdown - (Measured in Meter) - The Total Drawdown is referred as reduction in hydraulic head observed at a well in an aquifer, typically due to pumping a well as part of an aquifer test or well test.
Distance from Pumping Well to Point Intersection - (Measured in Meter) - The Distance from Pumping Well to Point Intersection is referred as the straight line which intersects the zero-drawdown line.

STEP 1: Convert Input(s) to Base Unit

Transmissivity: 11 Square Meter per Second --> 11 Square Meter per Second No Conversion Required
Total Drawdown: 0.035 Meter --> 0.035 Meter No Conversion Required
Distance from Pumping Well to Point Intersection: 4 Meter --> 4 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

S = 2.25*T*s_t/r_o^2 --> 2.25*11*0.035/4^2

Evaluating ... ...

S = 0.054140625

STEP 3: Convert Result to Output's Unit

0.054140625 --> No Conversion Required

FINAL ANSWER

0.054140625 ≈ 0.054141 <-- Storage Coefficient

(Calculation completed in 00.004 seconds)

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< Distance Drawdown Analysis Calculators

Storage Coefficient from Distance-Drawdown Graphs

LaTeX Go Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2

Drawdown across One Log Cycle from Distance Drawdown Graphs given Transmissivity

LaTeX Go Drawdown Across Log Cycle = 2.3*Pumping Rate/(Transmissivity*2*pi)

Transmissivity from Distance Drawdown Graphs

LaTeX Go Transmissivity = 2.3*Pumping Rate/(2*pi*Drawdown Across Log Cycle)

Pumping Rate from Distance Drawdown Graphs

LaTeX Go Pumping Rate = Transmissivity*2*pi*Drawdown Across Log Cycle/2.3

Storage Coefficient from Distance-Drawdown Graphs Formula

LaTeX Go

Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2
S = 2.25*T*s_t/r_o^2

What is Storage Coefficient ?

Storage Coefficient is the volume of water released from storage per unit decline in hydraulic head in the aquifer, per unit area of the aquifer. Storativity is a dimensionless quantity, and is always greater than 0.

How to Calculate Storage Coefficient from Distance-Drawdown Graphs?

Storage Coefficient from Distance-Drawdown Graphs calculator uses Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2 to calculate the Storage Coefficient, The Storage Coefficient from Distance-Drawdown Graphs formula is defined as estimating aquifer properties from pumping tests with more than one observation well. Storage Coefficient is denoted by S symbol.

How to calculate Storage Coefficient from Distance-Drawdown Graphs using this online calculator? To use this online calculator for Storage Coefficient from Distance-Drawdown Graphs, enter Transmissivity (T), Total Drawdown (s_t) & Distance from Pumping Well to Point Intersection (r_o) and hit the calculate button. Here is how the Storage Coefficient from Distance-Drawdown Graphs calculation can be explained with given input values -> 0.054141 = 2.25*11*0.035/4^2.

FAQ

What is Storage Coefficient from Distance-Drawdown Graphs?

The Storage Coefficient from Distance-Drawdown Graphs formula is defined as estimating aquifer properties from pumping tests with more than one observation well and is represented as S = 2.25*T*s_t/r_o^2 or Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2. Transmissivity is the rate at which groundwater flows horizontally through an aquifer or the degree to which a medium allows something, in particular electromagnetic radiation, to pass through it, The Total Drawdown is referred as reduction in hydraulic head observed at a well in an aquifer, typically due to pumping a well as part of an aquifer test or well test & The Distance from Pumping Well to Point Intersection is referred as the straight line which intersects the zero-drawdown line.

How to calculate Storage Coefficient from Distance-Drawdown Graphs?

The Storage Coefficient from Distance-Drawdown Graphs formula is defined as estimating aquifer properties from pumping tests with more than one observation well is calculated using Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2. To calculate Storage Coefficient from Distance-Drawdown Graphs, you need Transmissivity (T), Total Drawdown (s_t) & Distance from Pumping Well to Point Intersection (r_o). With our tool, you need to enter the respective value for Transmissivity, Total Drawdown & Distance from Pumping Well to Point Intersection and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Storage Coefficient?

In this formula, Storage Coefficient uses Transmissivity, Total Drawdown & Distance from Pumping Well to Point Intersection. We can use 1 other way(s) to calculate the same, which is/are as follows -

Storage Coefficient = Transmissivity*Total Drawdown/640*Distance from Pumping Well to Point Intersection^2

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