Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1 Calculator

✖Drawdown in Well 1 is a peak-to-trough decline during a specific period for well 1.ⓘ Drawdown in Well 1 [s₁]			+10% -10%
✖Modified Drawdown 1 is the modified value of drawdown for well 1.ⓘ Modified Drawdown 1 [s1^']			+10% -10%

✖Unconfined Aquifer Thickness is the aquifer thickness at initial stage before pumping.ⓘ Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1 [H_ui]

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Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1 Solution

STEP 0: Pre-Calculation Summary

Formula Used

Unconfined Aquifer Thickness = ((Drawdown in Well 1)^2/(2*(Drawdown in Well 1-Modified Drawdown 1)))
H_ui = ((s₁)^2/(2*(s₁-s1^')))
This formula uses 3 Variables

Variables Used

Unconfined Aquifer Thickness - (Measured in Meter) - Unconfined Aquifer Thickness is the aquifer thickness at initial stage before pumping.
Drawdown in Well 1 - (Measured in Meter) - Drawdown in Well 1 is a peak-to-trough decline during a specific period for well 1.
Modified Drawdown 1 - (Measured in Meter) - Modified Drawdown 1 is the modified value of drawdown for well 1.

STEP 1: Convert Input(s) to Base Unit

Drawdown in Well 1: 2.15 Meter --> 2.15 Meter No Conversion Required
Modified Drawdown 1: 1.721 Meter --> 1.721 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

H_ui = ((s₁)^2/(2*(s₁-s1^'))) --> ((2.15)^2/(2*(2.15-1.721)))

Evaluating ... ...

H_ui = 5.38752913752914

STEP 3: Convert Result to Output's Unit

5.38752913752914 Meter --> No Conversion Required

FINAL ANSWER

5.38752913752914 ≈ 5.387529 Meter <-- Unconfined Aquifer Thickness

(Calculation completed in 00.007 seconds)

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Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

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< Modified Discharge And Drawdown in Unconfined Aquifers Calculators

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

LaTeX Go Unconfined Aquifer Thickness = ((Drawdown in Well 1)^2/(2*(Drawdown in Well 1-Modified Drawdown 1)))

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

LaTeX Go Unconfined Aquifer Thickness = ((Drawdown in Well 2)^2/(2*(Drawdown in Well 2-Modified Drawdown 2)))

Modified Drawdown in Well 1

LaTeX Go Modified Drawdown 1 = Drawdown in Well 1-((Drawdown in Well 1)^2/(2*Initial Aquifer Thickness))

Modified Drawdown in Well 2

LaTeX Go Modified Drawdown 2 = Drawdown in Well 2-((Drawdown in Well 2)^2/(2*Initial Aquifer Thickness))

Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1 Formula

LaTeX Go

Unconfined Aquifer Thickness = ((Drawdown in Well 1)^2/(2*(Drawdown in Well 1-Modified Drawdown 1)))
H_ui = ((s₁)^2/(2*(s₁-s1^')))

What is Aquifer?

An aquifer is a body of rock and/or sediment that holds groundwater. Groundwater is the word used to describe precipitation that has infiltrated the soil beyond the surface and collected in empty spaces underground.

How to Calculate Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1?

Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1 calculator uses Unconfined Aquifer Thickness = ((Drawdown in Well 1)^2/(2*(Drawdown in Well 1-Modified Drawdown 1))) to calculate the Unconfined Aquifer Thickness, The Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1 formula is defined as the value of thickness of aquifer when we have prior information of modified drawdown in well 1. Unconfined Aquifer Thickness is denoted by H_ui symbol.

How to calculate Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1 using this online calculator? To use this online calculator for Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1, enter Drawdown in Well 1 (s₁) & Modified Drawdown 1 (s1^') and hit the calculate button. Here is how the Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1 calculation can be explained with given input values -> 5.387529 = ((2.15)^2/(2*(2.15-1.721))).

FAQ

What is Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1?

The Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1 formula is defined as the value of thickness of aquifer when we have prior information of modified drawdown in well 1 and is represented as H_ui = ((s₁)^2/(2*(s₁-s1^'))) or Unconfined Aquifer Thickness = ((Drawdown in Well 1)^2/(2*(Drawdown in Well 1-Modified Drawdown 1))). Drawdown in Well 1 is a peak-to-trough decline during a specific period for well 1 & Modified Drawdown 1 is the modified value of drawdown for well 1.

How to calculate Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1?

The Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1 formula is defined as the value of thickness of aquifer when we have prior information of modified drawdown in well 1 is calculated using Unconfined Aquifer Thickness = ((Drawdown in Well 1)^2/(2*(Drawdown in Well 1-Modified Drawdown 1))). To calculate Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1, you need Drawdown in Well 1 (s₁) & Modified Drawdown 1 (s1^'). With our tool, you need to enter the respective value for Drawdown in Well 1 & Modified Drawdown 1 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 Unconfined Aquifer Thickness?

In this formula, Unconfined Aquifer Thickness uses Drawdown in Well 1 & Modified Drawdown 1. We can use 1 other way(s) to calculate the same, which is/are as follows -

Unconfined Aquifer Thickness = ((Drawdown in Well 2)^2/(2*(Drawdown in Well 2-Modified Drawdown 2)))

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