Well Efficiency Calculator

✖The Change in Drawdown refers to the term applied to the maximum lowering of the groundwater table caused by pumping or artesian flow.ⓘ Change in Drawdown [s]			+10% -10%
✖The Drawdown Inside the Well refers to the radius of the pumping well is a change in groundwater level due to an applied stress.ⓘ Drawdown Inside the Well [s_t]			+10% -10%

✖The Well Efficiency refers to the ratio of the drawdown in the aquifer at the radius of the pumping well to the drawdown inside the well.ⓘ Well Efficiency [E]

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Well Efficiency Solution

STEP 0: Pre-Calculation Summary

Formula Used

Well Efficiency = (Change in Drawdown/Drawdown Inside the Well)
E = (s/s_t)
This formula uses 3 Variables

Variables Used

Well Efficiency - The Well Efficiency refers to the ratio of the drawdown in the aquifer at the radius of the pumping well to the drawdown inside the well.
Change in Drawdown - (Measured in Meter) - The Change in Drawdown refers to the term applied to the maximum lowering of the groundwater table caused by pumping or artesian flow.
Drawdown Inside the Well - (Measured in Meter) - The Drawdown Inside the Well refers to the radius of the pumping well is a change in groundwater level due to an applied stress.

STEP 1: Convert Input(s) to Base Unit

Change in Drawdown: 9.99 Meter --> 9.99 Meter No Conversion Required
Drawdown Inside the Well: 9 Meter --> 9 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

E = (s/s_t) --> (9.99/9)

Evaluating ... ...

E = 1.11

STEP 3: Convert Result to Output's Unit

1.11 --> No Conversion Required

FINAL ANSWER

1.11 <-- Well Efficiency

(Calculation completed in 00.004 seconds)

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Created by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

Mithila Muthamma PA has created this Calculator and 2000+ more calculators!

Verified by Chandana P Dev

NSS College of Engineering (NSSCE), Palakkad

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< Well Efficiency Calculators

Well Efficiency

LaTeX Go Well Efficiency = (Change in Drawdown/Drawdown Inside the Well)

Pumping Rate given Specific Capacity

LaTeX Go Pumping Rate = Specific Capacity*Drawdown Inside the Well

Drawdown given Specific Capacity

LaTeX Go Drawdown Inside the Well = Pumping Rate/Specific Capacity

Specific Capacity

LaTeX Go Specific Capacity = Pumping Rate/Drawdown Inside the Well

Well Efficiency Formula

LaTeX Go

Well Efficiency = (Change in Drawdown/Drawdown Inside the Well)
E = (s/s_t)

What is an Aquifer?

Aquifer is rock layer that contains water and releases it in appreciable amounts. The rock contains water-filled pore spaces, and, when the spaces are connected, the water is able to flow through the matrix of the rock. An aquifer also may be called a water-bearing stratum, lens, or zone

How to Calculate Well Efficiency?

Well Efficiency calculator uses Well Efficiency = (Change in Drawdown/Drawdown Inside the Well) to calculate the Well Efficiency, The Well Efficiency formula is defined as the ratio of the drawdown in the aquifer at the radius of the pumping well to the drawdown inside the well, (Well efficiency is not in Percentage). Well Efficiency is denoted by E symbol.

How to calculate Well Efficiency using this online calculator? To use this online calculator for Well Efficiency, enter Change in Drawdown (s) & Drawdown Inside the Well (s_t) and hit the calculate button. Here is how the Well Efficiency calculation can be explained with given input values -> 1.11 = (9.99/9).

FAQ

What is Well Efficiency?

The Well Efficiency formula is defined as the ratio of the drawdown in the aquifer at the radius of the pumping well to the drawdown inside the well, (Well efficiency is not in Percentage) and is represented as E = (s/s_t) or Well Efficiency = (Change in Drawdown/Drawdown Inside the Well). The Change in Drawdown refers to the term applied to the maximum lowering of the groundwater table caused by pumping or artesian flow & The Drawdown Inside the Well refers to the radius of the pumping well is a change in groundwater level due to an applied stress.

How to calculate Well Efficiency?

The Well Efficiency formula is defined as the ratio of the drawdown in the aquifer at the radius of the pumping well to the drawdown inside the well, (Well efficiency is not in Percentage) is calculated using Well Efficiency = (Change in Drawdown/Drawdown Inside the Well). To calculate Well Efficiency, you need Change in Drawdown (s) & Drawdown Inside the Well (s_t). With our tool, you need to enter the respective value for Change in Drawdown & Drawdown Inside the Well and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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