ABSTRACT
Water well is designed to get the optimum quantity of water from a saturated geological formation. Wells should have shapes that simplify the groundwater movement toward the well storage. Cross section of water well is important for different functions to have the optimum performance during planning, design, and operation stages of water supply. In light of all the available data decision variables about the well cross-section shapes, dimensions, penetrations, and depths should be determined. The larger the diameter the longer is the time necessary for reaching a quasi-steady-state flow after discharge of water from the well. Industrialization has brought with it an enormous increase in water demand so that shallow- dug wells become unsatisfactory for water supply. Collector wells are constructed in alluvial deposit groundwater reservoirs. The common depth between the well and saturation zone of the groundwater reservoir is referred to as the well penetration.
