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Storage Coefficient from Distance-Drawdown Graphs Formula

GoStorage Coefficient for Inconsistent Units from Distance Drawdown Graphs Formula

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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. Check FAQs

S = 2.25 \cdot T \cdot \frac{s t}{{r o}^{2}}

S - Storage Coefficient?T - Transmissivity?s_t - Total Drawdown?r_o - Distance from Pumping Well to Point Intersection?

Storage Coefficient from Distance-Drawdown Graphs Example

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Here is how the Storage Coefficient from Distance-Drawdown Graphs equation looks like with Values.

Here is how the Storage Coefficient from Distance-Drawdown Graphs equation looks like with Units.

Here is how the Storage Coefficient from Distance-Drawdown Graphs equation looks like.

0.0541 = 2.25 \cdot 11 \cdot \frac{0.035}{4^{2}}

0.0541 = 2.25 \cdot 11m²/s \cdot \frac{0.035m}{{4m}^{2}}

0.0541 = 2.25 \cdot 11 \cdot \frac{0.035}{4^{2}}

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Storage Coefficient from Distance-Drawdown Graphs Solution

Follow our step by step solution on how to calculate Storage Coefficient from Distance-Drawdown Graphs?

FIRST Step Consider the formula

S = 2.25 \cdot T \cdot \frac{s t}{{r o}^{2}}

Next Step Substitute values of Variables

∴

S = 2.25 \cdot 11m²/s \cdot \frac{0.035m}{{4m}^{2}}

Next Step Prepare to Evaluate

∴

S = 2.25 \cdot 11 \cdot \frac{0.035}{4^{2}}

Next Step Evaluate

∴

S = 0.054140625

LAST Step Rounding Answer

∴

S = 0.0541

Storage Coefficient from Distance-Drawdown Graphs Formula Elements

Variables

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.

Symbol: S

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Storage Coefficient

Transmissivity

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.

Symbol: T

Measurement: Kinematic ViscosityUnit: m²/s

Note: Value can be positive or negative.

Formulas to find Transmissivity

Total Drawdown

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.

Symbol: s_t

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Total Drawdown

Distance from Pumping Well to Point Intersection

The Distance from Pumping Well to Point Intersection is referred as the straight line which intersects the zero-drawdown line.

Symbol: r_o

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Distance from Pumping Well to Point Intersection

Other Formulas to find Storage Coefficient

Go Storage Coefficient for Inconsistent Units from Distance Drawdown Graphs

S = T \cdot \frac{s t}{640} \cdot {r o}^{2}

Other formulas in Distance Drawdown Analysis category

Go Transmissivity from Distance Drawdown Graphs

T = 2.3 \cdot \frac{q}{2 \cdot π \cdot Δs D}

Go Pumping Rate from Distance Drawdown Graphs

q = T \cdot 2 \cdot π \cdot \frac{Δs D}{2.3}

Go Drawdown across One Log Cycle from Distance Drawdown Graphs given Transmissivity

Δs D = 2.3 \cdot \frac{q}{T \cdot 2 \cdot π}

Go Transmissivity given Storage Coefficient from Distance Drawdown

T = \frac{S \cdot {r o}^{2}}{2.25 \cdot s t}

How to Evaluate Storage Coefficient from Distance-Drawdown Graphs?

Storage Coefficient from Distance-Drawdown Graphs evaluator uses Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2 to evaluate 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 evaluate Storage Coefficient from Distance-Drawdown Graphs using this online evaluator? To use this online evaluator 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.

FAQs on Storage Coefficient from Distance-Drawdown Graphs

What is the formula to find Storage Coefficient from Distance-Drawdown Graphs?

The formula of Storage Coefficient from Distance-Drawdown Graphs is expressed as Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2. Here is an example- 0.054141 = 2.25*11*0.035/4^2.

How to calculate Storage Coefficient from Distance-Drawdown Graphs?

With Transmissivity (T), Total Drawdown (s_t) & Distance from Pumping Well to Point Intersection (r_o) we can find Storage Coefficient from Distance-Drawdown Graphs using the formula - Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2.

What are the other ways to Calculate Storage Coefficient?

Here are the different ways to Calculate Storage Coefficient-

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

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Storage Coefficient from Distance-Drawdown Graphs Formula

​GoStorage Coefficient for Inconsistent Units from Distance Drawdown Graphs Formula

Storage Coefficient from Distance-Drawdown Graphs Example

Storage Coefficient from Distance-Drawdown Graphs Solution

Storage Coefficient from Distance-Drawdown Graphs Formula Elements

Other Formulas to find Storage Coefficient

Other formulas in Distance Drawdown Analysis category

How to Evaluate Storage Coefficient from Distance-Drawdown Graphs?

FAQs on Storage Coefficient from Distance-Drawdown Graphs

Variable Name

GoStorage Coefficient for Inconsistent Units from Distance Drawdown Graphs Formula