Storage coefficient from distance drawdown graphs Solution

STEP 0: Pre-Calculation Summary
Formula Used
Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2
S = 2.25*T*st/ro^2
This formula uses 4 Variables
Variables Used
Storage Coefficient - 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.
Transmissivity - (Measured in Square Meter per Second) - Transmissivity is the rate at which groundwater flows horizontally through an aquifer or the degree to which a medium allows something, in particular electromagnetic radiation, to pass through it.
Total Drawdown - (Measured in Meter) - Total Drawdown is the reduction in hydraulic head observed at a well in an aquifer, typically due to pumping a well as part of an aquifer test or well test.
Distance from Pumping Well to Point Intersection - (Measured in Meter) - Distance from Pumping Well to Point Intersection where the straight line intersects the Zero-drawdown line.
STEP 1: Convert Input(s) to Base Unit
Transmissivity: 11 Square Meter per Second --> 11 Square Meter per Second No Conversion Required
Total Drawdown: 0.035 Meter --> 0.035 Meter No Conversion Required
Distance from Pumping Well to Point Intersection: 4 Meter --> 4 Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
S = 2.25*T*st/ro^2 --> 2.25*11*0.035/4^2
Evaluating ... ...
S = 0.054140625
STEP 3: Convert Result to Output's Unit
0.054140625 --> No Conversion Required
FINAL ANSWER
0.054140625 0.054141 <-- Storage Coefficient
(Calculation completed in 00.006 seconds)

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10+ Distance-Drawdown Analysis Calculators

Transmissivity given storage coefficient from distance drawdown
Go Transmissivity = (Storage Coefficient*Distance from Pumping Well to Point Intersection^2)/(2.25*Total Drawdown)
Time at which drawdowns are measured for storage coefficient
Go Total Drawdown = Storage Coefficient*Distance from Pumping Well to Point Intersection^2/(2.25*Transmissivity)
Storage coefficient from distance drawdown graphs
Go Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2
Storage coefficient for inconsistent units from distance drawdown graphs
Go Storage Coefficient = Transmissivity*Total Drawdown/640*Distance from Pumping Well to Point Intersection^2
Drawdown across one log cycle from distance drawdown graphs given transmissivity
Go Drawdown Across Log Cycle = 2.3*Pumping Rate/(Transmissivity*2*pi)
Transmissivity from distance drawdown graphs
Go Transmissivity = 2.3*Pumping Rate/(2*pi*Drawdown Across Log Cycle)
Pumping rate from distance drawdown graphs
Go Pumping Rate = Transmissivity*2*pi*Drawdown Across Log Cycle/2.3
Pumping Rate given Transmissivity for Inconsistent Units from Distance-Drawdown Graphs
Go Pumping Rate = Transmissivity*Drawdown Across One Log Cycle/70
Drawdown across One Log Cycle given Transmissivity for Inconsistent Units
Go Drawdown Across One Log Cycle = 70*Pumping Rate/Transmissivity
Transmissivity for inconsistent units from distance drawdown graphs
Go Transmissivity = 70*Pumping Rate/Drawdown Across One Log Cycle

Storage coefficient from distance drawdown graphs Formula

Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2
S = 2.25*T*st/ro^2

What is Storage Coefficient ?

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. Storativity is a dimensionless quantity, and is always greater than 0.

How to Calculate Storage coefficient from distance drawdown graphs?

Storage coefficient from distance drawdown graphs calculator uses Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2 to calculate the Storage Coefficient, Storage coefficient from distance drawdown graphs are used to estimate aquifer properties from pumping tests with more than one observation well. Storage Coefficient is denoted by S symbol.

How to calculate Storage coefficient from distance drawdown graphs using this online calculator? To use this online calculator for Storage coefficient from distance drawdown graphs, enter Transmissivity (T), Total Drawdown (st) & Distance from Pumping Well to Point Intersection (ro) and hit the calculate button. Here is how the Storage coefficient from distance drawdown graphs calculation can be explained with given input values -> 0.054141 = 2.25*11*0.035/4^2.

FAQ

What is Storage coefficient from distance drawdown graphs?
Storage coefficient from distance drawdown graphs are used to estimate aquifer properties from pumping tests with more than one observation well and is represented as S = 2.25*T*st/ro^2 or Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2. Transmissivity is the rate at which groundwater flows horizontally through an aquifer or the degree to which a medium allows something, in particular electromagnetic radiation, to pass through it, Total Drawdown is the reduction in hydraulic head observed at a well in an aquifer, typically due to pumping a well as part of an aquifer test or well test & Distance from Pumping Well to Point Intersection where the straight line intersects the Zero-drawdown line.
How to calculate Storage coefficient from distance drawdown graphs?
Storage coefficient from distance drawdown graphs are used to estimate aquifer properties from pumping tests with more than one observation well is calculated using Storage Coefficient = 2.25*Transmissivity*Total Drawdown/Distance from Pumping Well to Point Intersection^2. To calculate Storage coefficient from distance drawdown graphs, you need Transmissivity (T), Total Drawdown (st) & Distance from Pumping Well to Point Intersection (ro). With our tool, you need to enter the respective value for Transmissivity, Total Drawdown & Distance from Pumping Well to Point Intersection 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 Storage Coefficient?
In this formula, Storage Coefficient uses Transmissivity, Total Drawdown & Distance from Pumping Well to Point Intersection. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Storage Coefficient = Transmissivity*Total Drawdown/640*Distance from Pumping Well to Point Intersection^2
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