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Calculate Horizontal Saturated Recovery For a Retention/Detention Pond Using the Andreyev and Wiseman Method:
 
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)
 
Average horizontal hydraulic conductivity (Kh - ft/day or m/day)
Average width of the retention pond, midway between basin bottom and water level at time t (W - ft or m)
Initial saturated thickness of the aquifer (H - ft or m)
Height of water in basin above the initial ground water table at time t (hc - ft or m)
Dimensionless parameter representing physical and hydraulic characteristics of the retention basin and effective aquifer system (Fx)
 
   
   
   
Output:  
 
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T =
 
 
 
 
 




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