Soil Properties
Hydraulic conductivity (m/s)
Dimensions and Parameters
Length of excavation or trench (xm)
Width of excavation (m)
Height of water table in wells (m)
Thickness of aquifer (m)
Height of water above base of aquifer (m)
Dewatering elevation (m)
Base of aquifer (m)
Static water level (m)
Depth to base of well below upper horizon of aquifer
Calculated or Chart Parameters
Equivilent radius of well (m)
From Fig 18
Slope factor from Figure 20
From Fig 21
Hydraulic head of original water table
Hydraulic head at maximum dewatering
Equivilent radius of influence Ro
Pumping rate Q
Drawdown head