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Calculate Vertical Unsaturated Recovery For a Retention/Detention Pond:
 
Calculation:
Designer/Checker:
 
Input:
 

(Note: All input Metric units are converted to English units for the equations below and then the output English units are converted back to Metric)
 
Unsaturated vertical hydraulic conductivity (Kvu - ft/day or m/day)
Factor of safety, typically 2 (FS)
Elevation of bottom of pond (Epb - ft or m)
Elevation of ambient water table (Ewt - ft or m)
Fillable porosity (f)
Area of pond bottom (Ab - sf or m^2)
 
   
   
   
Output:  
 
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Tsat =
V =
hu =
 
 
 
 
 



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