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

Pond length (L)

Pond width (W)

Elevation of base of aquifer (Eb)

Elevation of ambient water table (Ewt)

Hydraulic conductivity of aquifer (k)

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)

Result

Maximum Radius of Influence, R

Volume recovered, V

m³

Recovery time, T

days

L - Pond length
W - Pond width
Eb - Elevation of base of aquifer
Ewt - Elevation of ambient water table
k - Hydraulic conductivity of aquifer
p - Porosity of material in pond
n - Fillable porosity of aquifer
Epb - Bottom elevation of volume to be recovered, usually pond bottom
Ept - Top elevation of volume to be recovered
R - Maximum Radius of Influence
V- Volume recovered
T - Recovery time