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

✖Thickness of aquifer measured from ipermeable layer to the initial level of water table.ⓘ Thickness of aquifer [H]			+10% -10%
✖Depth of water 1 is the depth of water in the 1st considered well.ⓘ Depth of Water 1 [h₁]			+10% -10%

✖Drawdown in well 1 is a peak-to-trough decline during a specific period for well 1.ⓘ Drawdown in Well 1 given Thickness of Aquifer from Impermeable Layer [s₁]

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Formula

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Drawdown in Well 1 given Thickness of Aquifer from Impermeable Layer

Formula

`"s"_{"1"} = "H"-"h"_{"1"}`

Example

`"2.15m"="20m"-"17.85m"`

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

STEP 0: Pre-Calculation Summary

Formula Used

Drawdown in well 1 = Thickness of aquifer-Depth of Water 1
s₁ = H-h₁
This formula uses 3 Variables

Variables Used

Drawdown in well 1 - (Measured in Meter) - Drawdown in well 1 is a peak-to-trough decline during a specific period for well 1.
Thickness of aquifer - (Measured in Meter) - Thickness of aquifer measured from ipermeable layer to the initial level of water table.
Depth of Water 1 - (Measured in Meter) - Depth of water 1 is the depth of water in the 1st considered well.

STEP 1: Convert Input(s) to Base Unit

Thickness of aquifer: 20 Meter --> 20 Meter No Conversion Required
Depth of Water 1: 17.85 Meter --> 17.85 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

s₁ = H-h₁ --> 20-17.85

Evaluating ... ...

s₁ = 2.15

STEP 3: Convert Result to Output's Unit

2.15 Meter --> No Conversion Required

FINAL ANSWER

2.15 Meter <-- Drawdown in well 1

(Calculation completed in 00.020 seconds)

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Credits

Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has created this Calculator and 2200+ more calculators!

Verified by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

Ishita Goyal has verified this Calculator and 2600+ more calculators!

< 9 Discharge And Drawdown in Well Calculators

Drawdown in Well 1 given Aquifer Constant

Go 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))

Drawdown in Well 2 given Aquifer Constant

Go Drawdown in well 2 = Drawdown in well 1-((Discharge*log((Radial Distance at Observation Well 2/Radial Distance at Observation Well 1),10))/(2.72*Aquifer Constant))

Discharge given Aquifer Constant

Go Discharge = Aquifer Constant/((1)/(2.72*(Drawdown in well 1-Drawdown in well 2)))

Drawdown in Well 1 given Aquifer Constant and Discharge

Go Drawdown in well 1 = Drawdown in well 2+((Discharge)/(2.72*Aquifer Constant))

Drawdown in Well 2 given Aquifer Constant and Discharge

Go Drawdown in well 2 = Drawdown in well 1-((Discharge)/(2.72*Aquifer Constant))

Difference in Drawdowns at Two Wells given Aquifer Constant

Go Difference in Drawdowns = (Discharge/(2.72*Aquifer Constant))

Drawdown in Well 1 given Thickness of Aquifer from Impermeable Layer

Go Drawdown in well 1 = Thickness of aquifer-Depth of Water 1

Discharge given Difference in Drawdowns at Two Wells

Go Discharge = Aquifer Constant*2.72*Difference in Drawdowns

Drawdown in Well 2 given Thickness of Aquifer from Impermeable Layer

Go Drawdown in well 2 = Width of Aquifer-Depth of Water 2

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

Drawdown in well 1 = Thickness of aquifer-Depth of Water 1
s₁ = H-h₁

What is Drawdown?

A drawdown is a peak-to-trough decline during a specific period for an investment, trading account, or fund. A drawdown is usually quoted as the percentage between the peak and the subsequent trough.

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

Drawdown in Well 1 given Thickness of Aquifer from Impermeable Layer calculator uses Drawdown in well 1 = Thickness of aquifer-Depth of Water 1 to calculate the Drawdown in well 1, The Drawdown in Well 1 given Thickness of Aquifer from Impermeable Layer is defined as the value of drawdown in 1st well when we have prior information of other parameters used. Drawdown in well 1 is denoted by s₁ symbol.

How to calculate Drawdown in Well 1 given Thickness of Aquifer from Impermeable Layer using this online calculator? To use this online calculator for Drawdown in Well 1 given Thickness of Aquifer from Impermeable Layer, enter Thickness of aquifer (H) & Depth of Water 1 (h₁) and hit the calculate button. Here is how the Drawdown in Well 1 given Thickness of Aquifer from Impermeable Layer calculation can be explained with given input values -> 2.1356 = 20-17.85.

FAQ

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

The Drawdown in Well 1 given Thickness of Aquifer from Impermeable Layer is defined as the value of drawdown in 1st well when we have prior information of other parameters used and is represented as s₁ = H-h₁ or Drawdown in well 1 = Thickness of aquifer-Depth of Water 1. Thickness of aquifer measured from ipermeable layer to the initial level of water table & Depth of water 1 is the depth of water in the 1st considered well.

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

The Drawdown in Well 1 given Thickness of Aquifer from Impermeable Layer is defined as the value of drawdown in 1st well when we have prior information of other parameters used is calculated using Drawdown in well 1 = Thickness of aquifer-Depth of Water 1. To calculate Drawdown in Well 1 given Thickness of Aquifer from Impermeable Layer, you need Thickness of aquifer (H) & Depth of Water 1 (h₁). With our tool, you need to enter the respective value for Thickness of aquifer & Depth of Water 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 Drawdown in well 1?

In this formula, Drawdown in well 1 uses Thickness of aquifer & Depth of Water 1. We can use 2 other way(s) to calculate the same, which is/are as follows -

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))
Drawdown in well 1 = Drawdown in well 2+((Discharge)/(2.72*Aquifer Constant))

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