Mithila Muthamma PA
Coorg Institute of Technology (CIT), Coorg
Mithila Muthamma PA has created this Calculator and 500+ more calculators!
Chandana P Dev
NSS College of Engineering (NSSCE), Palakkad
Chandana P Dev has verified this Calculator and 500+ more calculators!

11 Other formulas that you can solve using the same Inputs

Time at which Steady-Shape Conditions Develop
time at which steady-shape conditions develop=(7200*Distance from Pumping Well to Observation Well^2*Storage Coefficient)/Transmissivity GO
Storage Coefficient when Time at which Steady-Shape Conditions Develop is Given
Storage Coefficient=Transmissivity*time at which steady-shape conditions develop/7200*Distance from Pumping Well to Observation Well^2 GO
Transmissivity when Time at which Steady-Shape Conditions Develop is Given
Transmissivity=7200*Distance from Pumping Well to Observation Well^2*Storage Coefficient/time at which steady-shape conditions develop GO
Transmissivity When Storage Coefficient is Given from Theis Equation
Transmissivity=(Storage Coefficient*Distance from Pumping Well to Observation Well^2)/(4*Time*Varying Dimensionless Group ) GO
Equation for the Varying Dimensionless Group u in Theis Equation
Varying Dimensionless Group =(Distance from Pumping Well to Observation Well^2*Storage Coefficient)/4*Transmissivity*Time GO
Theis Equation to Determine Storage Coefficient
Storage Coefficient=(4*Transmissivity*Time*Varying Dimensionless Group )/Distance from Pumping Well to Observation Well^2 GO
Quantity of Water when Transmissivity is Given
Quantity of water=Transmissivity*Large Width of Aquifer*Hydraulic Gradient GO
Storage Coefficient From Theis Equation of Transmissivity
Storage Coefficient=(Pumping Rate*Well Function of u)/Transmissivity*4*pi GO
Theis Equation to Determine Transmissivity
Transmissivity=(Pumping Rate*Well Function of u)/4*pi*Storage Coefficient GO
Thickness of Aquifer when Transmissivity is Given
Aquifer Thickness at Midpoint =Transmissivity/Hydraulic Conductivity GO
Transmissivity Derived from the Time-Drawdown Graphs
Transmissivity=(2.3*Pumping Rate)/4*pi*Drawdown Across One Log Cycle GO

2 Other formulas that calculate the same Output

Drawdown in the Aquifer when Well Efficiency is Given
Drawdown in the Aquifer=Well Efficiency*Drawdown Inside the Well GO
Drawdown in the Aquifer when Total Drawdown is Given
Drawdown in the Aquifer=Total Drawdown-Well Loss GO

Drawdown in an Aquifer caused by Pumping at any Point in the Aquifer Formula

Drawdown in the Aquifer=Pumping Rate*Time Period Pumping has been in Progress /Transmissivity*Storage Coefficient*Distance from Pumping Well to Observation Well^2
s<sub>a</sub>=Q*t/T*S*r^2
More formulas
Total Drawdown in a Pumping Well GO
Total Drawdown in a Pumping Well expressed in terms of Factors related to Hydraulic Characteristics GO
Drawdown in the Aquifer when Total Drawdown is Given GO
Well Loss when Total Drawdown is Given GO

What is Drawdown ?

Drawdown is a term applied to the maximum lowering of the groundwater table caused by pumping or artesian flow. It is measured as the difference between the initial level of water in a well before pumping, and the static, or stabilized, level of water after a long period of pumping

How to Calculate Drawdown in an Aquifer caused by Pumping at any Point in the Aquifer?

Drawdown in an Aquifer caused by Pumping at any Point in the Aquifer calculator uses Drawdown in the Aquifer=Pumping Rate*Time Period Pumping has been in Progress /Transmissivity*Storage Coefficient*Distance from Pumping Well to Observation Well^2 to calculate the Drawdown in the Aquifer, The Drawdown in an Aquifer caused by Pumping at any Point in the Aquifer is a change in groundwater level due to an applied stress. Drawdown in the Aquifer and is denoted by sa symbol.

How to calculate Drawdown in an Aquifer caused by Pumping at any Point in the Aquifer using this online calculator? To use this online calculator for Drawdown in an Aquifer caused by Pumping at any Point in the Aquifer, enter Pumping Rate (Q), Time Period Pumping has been in Progress (t), Transmissivity (T), Storage Coefficient (S) and Distance from Pumping Well to Observation Well (r) and hit the calculate button. Here is how the Drawdown in an Aquifer caused by Pumping at any Point in the Aquifer calculation can be explained with given input values -> 8.640E+9 = 2*3000/0.00277777777777778*1*2^2.

FAQ

What is Drawdown in an Aquifer caused by Pumping at any Point in the Aquifer?
The Drawdown in an Aquifer caused by Pumping at any Point in the Aquifer is a change in groundwater level due to an applied stress and is represented as sa=Q*t/T*S*r^2 or Drawdown in the Aquifer=Pumping Rate*Time Period Pumping has been in Progress /Transmissivity*Storage Coefficient*Distance from Pumping Well to Observation Well^2. Pumping Rate is the actual volumetric pumping rate, Time Period Pumping has been in Progress , Transmissivity is the rate at which groundwater flows horizontally through an aquifer, Storage Coefficient is the volume of water released from storage per unit decline in hydraulic head in the aquifer, per unit area of the aquifer and Distance from Pumping Well to Observation Well.
How to calculate Drawdown in an Aquifer caused by Pumping at any Point in the Aquifer?
The Drawdown in an Aquifer caused by Pumping at any Point in the Aquifer is a change in groundwater level due to an applied stress is calculated using Drawdown in the Aquifer=Pumping Rate*Time Period Pumping has been in Progress /Transmissivity*Storage Coefficient*Distance from Pumping Well to Observation Well^2. To calculate Drawdown in an Aquifer caused by Pumping at any Point in the Aquifer, you need Pumping Rate (Q), Time Period Pumping has been in Progress (t), Transmissivity (T), Storage Coefficient (S) and Distance from Pumping Well to Observation Well (r). With our tool, you need to enter the respective value for Pumping Rate, Time Period Pumping has been in Progress , Transmissivity, Storage Coefficient and Distance from Pumping Well to Observation Well 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 the Aquifer?
In this formula, Drawdown in the Aquifer uses Pumping Rate, Time Period Pumping has been in Progress , Transmissivity, Storage Coefficient and Distance from Pumping Well to Observation Well. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Drawdown in the Aquifer=Total Drawdown-Well Loss
  • Drawdown in the Aquifer=Well Efficiency*Drawdown Inside the Well
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