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Calculate Horizontal Saturated Recovery For a Retention/Detention Pond Using the Simplified Analytical Method:

(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)
Pond length (L - ft or m)
Pond width (W - ft or m)
Elevation of base of aquifer (Eb - ft or m)
Elevation of ambient water table (Ewt - ft or m)
Hydraulic conductivity of aquifer (k - ft/day or m/day)
Porosity of material in pond (p)
Fillable porosity of aquifer (n)
Bottom elevation of volume to be recovered, usually pond bottom (Epb)
Top elevation of volume to be recovered (Ept)
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R =
V =
T =

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