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Drawdown in Well 1 given Aquifer Constant Formula

GoDrawdown in Well 1 given Thickness of Aquifer from Impermeable Layer Formula

GoDrawdown in Well 1 given Aquifer Constant and Discharge Formula

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Drawdown in Well 1 refers to the reduction in water level caused by pumping in a well. Check FAQs

s 1 = s 2 + (\frac{Q w \cdot \log ((\frac{r 2}{r 1}), 10)}{2.72 \cdot T})

s₁ - Drawdown in Well 1?s₂ - Drawdown in Well 2?Q_w - Discharge?r₂ - Radial Distance at Observation Well 2?r₁ - Radial Distance at Observation Well 1?T - Aquifer Constant?

Drawdown in Well 1 given Aquifer Constant Example

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Here is how the Drawdown in Well 1 given Aquifer Constant equation looks like with Values.

Here is how the Drawdown in Well 1 given Aquifer Constant equation looks like with Units.

Here is how the Drawdown in Well 1 given Aquifer Constant equation looks like.

2.15 = 2.136 + (\frac{0.911 \cdot \log ((\frac{10}{1.07}), 10)}{2.72 \cdot 24.67})

2.15m = 2.136m + (\frac{0.911m³/s \cdot \log ((\frac{10m}{1.07m}), 10)}{2.72 \cdot 24.67})

2.15 = 2.136 + (\frac{0.911 \cdot \log ((\frac{10}{1.07}), 10)}{2.72 \cdot 24.67})

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Drawdown in Well 1 given Aquifer Constant Solution

Follow our step by step solution on how to calculate Drawdown in Well 1 given Aquifer Constant?

FIRST Step Consider the formula

s 1 = s 2 + (\frac{Q w \cdot \log ((\frac{r 2}{r 1}), 10)}{2.72 \cdot T})

Next Step Substitute values of Variables

∴

s 1 = 2.136m + (\frac{0.911m³/s \cdot \log ((\frac{10m}{1.07m}), 10)}{2.72 \cdot 24.67})

Next Step Prepare to Evaluate

∴

s 1 = 2.136 + (\frac{0.911 \cdot \log ((\frac{10}{1.07}), 10)}{2.72 \cdot 24.67})

Next Step Evaluate

∴

s 1 = 2.14998726418989m

LAST Step Rounding Answer

∴

s 1 = 2.15m

Drawdown in Well 1 given Aquifer Constant Formula Elements

Variables

Functions

Drawdown in Well 1

Drawdown in Well 1 refers to the reduction in water level caused by pumping in a well.

Symbol: s₁

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Drawdown in Well 1

Drawdown in Well 2

Drawdown in Well 2 refers to the reduction in water level caused by pumping in a well.

Symbol: s₂

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Drawdown in Well 2

Discharge

Discharge refers to the volume of water that flows through the aquifer over a given period.

Symbol: Q_w

Measurement: Volumetric Flow RateUnit: m³/s

Note: Value should be greater than 0.

Formulas to find Discharge

Radial Distance at Observation Well 2

Radial distance at Observation Well 2 refers to the horizontal distance from the center of a pumping well to the observation well, where groundwater levels are monitored.

Symbol: r₂

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Radial Distance at Observation Well 2

Radial Distance at Observation Well 1

Radial distance at Observation Well 1 refers to the horizontal distance from the center of a pumping well to the observation well, where groundwater levels are monitored.

Symbol: r₁

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Radial Distance at Observation Well 1

Aquifer Constant

Aquifer Constant refers to the product of the hydraulic conductivity (K) and the thickness (b) of an aquifer and also known as coefficient of transmissibility.

Symbol: T

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Aquifer Constant

log

Logarithmic function is an inverse function to exponentiation.

Syntax: log(Base, Number)

Other Formulas to find Drawdown in Well 1

Go Drawdown in Well 1 given Thickness of Aquifer from Impermeable Layer

s 1 = H - h 1

Go Drawdown in Well 1 given Aquifer Constant and Discharge

s 1 = s 2 + (\frac{Q w}{2.72 \cdot T})

Other formulas in Discharge And Drawdown in Well category

Go Drawdown in Well 2 given Thickness of Aquifer from Impermeable Layer

s 2 = H - h 2

Go Drawdown in Well 2 given Aquifer Constant

s 2 = s 1 - (\frac{Q w \cdot \log ((\frac{r 2}{r 1}), 10)}{2.72 \cdot T})

Go Discharge given Aquifer Constant

Q w = \frac{T}{\frac{1}{2.72 \cdot (s 1 - s 2)}}

Go Drawdown in Well 2 given Aquifer Constant and Discharge

s 2 = s 1 - (\frac{Q w}{2.72 \cdot T})

How to Evaluate Drawdown in Well 1 given Aquifer Constant?

Drawdown in Well 1 given Aquifer Constant evaluator uses Drawdown in Well 1 = Drawdown in Well 2+((Discharge*log((Radial Distance at Observation Well 2/Radial Distance at Observation Well 1),10))/(2.72*Aquifer Constant)) to evaluate the Drawdown in Well 1, Drawdown in Well 1 given Aquifer Constant formula is defined as a measure of the decline in hydraulic head in a well due to pumping, which is influenced by the aquifer's properties and the distance between the pumping and observation wells in a confined aquifer system. Drawdown in Well 1 is denoted by s₁ symbol.

How to evaluate Drawdown in Well 1 given Aquifer Constant using this online evaluator? To use this online evaluator for Drawdown in Well 1 given Aquifer Constant, enter Drawdown in Well 2 (s₂), Discharge (Q_w), Radial Distance at Observation Well 2 (r₂), Radial Distance at Observation Well 1 (r₁) & Aquifer Constant (T) and hit the calculate button.

FAQs on Drawdown in Well 1 given Aquifer Constant

What is the formula to find Drawdown in Well 1 given Aquifer Constant?

The formula of Drawdown in Well 1 given Aquifer Constant is expressed as Drawdown in Well 1 = Drawdown in Well 2+((Discharge*log((Radial Distance at Observation Well 2/Radial Distance at Observation Well 1),10))/(2.72*Aquifer Constant)). Here is an example- 2.149987 = 2.136+((0.911*log((10/1.07),10))/(2.72*24.67)).

How to calculate Drawdown in Well 1 given Aquifer Constant?

With Drawdown in Well 2 (s₂), Discharge (Q_w), Radial Distance at Observation Well 2 (r₂), Radial Distance at Observation Well 1 (r₁) & Aquifer Constant (T) we can find Drawdown in Well 1 given Aquifer Constant using the formula - Drawdown in Well 1 = Drawdown in Well 2+((Discharge*log((Radial Distance at Observation Well 2/Radial Distance at Observation Well 1),10))/(2.72*Aquifer Constant)). This formula also uses Logarithmic Inverse (log) function(s).

What are the other ways to Calculate Drawdown in Well 1?

Here are the different ways to Calculate Drawdown in Well 1-

Drawdown in Well 1=Thickness of Aquifer-Depth of Water in Well 1
Drawdown in Well 1=Drawdown in Well 2+((Discharge)/(2.72*Aquifer Constant))

Can the Drawdown in Well 1 given Aquifer Constant be negative?

No, the Drawdown in Well 1 given Aquifer Constant, measured in Length cannot be negative.

Which unit is used to measure Drawdown in Well 1 given Aquifer Constant?

Drawdown in Well 1 given Aquifer Constant is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Drawdown in Well 1 given Aquifer Constant can be measured.

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Drawdown in Well 1 given Aquifer Constant Formula

​GoDrawdown in Well 1 given Thickness of Aquifer from Impermeable Layer Formula

​GoDrawdown in Well 1 given Aquifer Constant and Discharge Formula

Drawdown in Well 1 given Aquifer Constant Example

Drawdown in Well 1 given Aquifer Constant Solution

Drawdown in Well 1 given Aquifer Constant Formula Elements

Other Formulas to find Drawdown in Well 1

Other formulas in Discharge And Drawdown in Well category

How to Evaluate Drawdown in Well 1 given Aquifer Constant?

FAQs on Drawdown in Well 1 given Aquifer Constant

Variable Name

GoDrawdown in Well 1 given Thickness of Aquifer from Impermeable Layer Formula

GoDrawdown in Well 1 given Aquifer Constant and Discharge Formula