The PFT begins with a comprehensive study, often including a dynamic or ambient flow and chemistry profile, of a well impacted with any combination of water quality or production issues. A packer feasibility test is recommended if it is deemed suitable for addressing conditions provided in the preliminary studies. Suitable conditions for a PFT typically include identifying a zone contributing a significant portion of a constituent of concern. The packer is set in correlation to the zone of concern, with also consideration of production requirements, other chemical impacts from the packer placement and efficiency of the pump. The packer system is designed by a team of experienced hydrogeologists in conjunction with the affiliated pump company to implement the construction. The construction and implementation of the packer system may be accompanied by various well rehabilitation efforts to maximize production potential and facilitate increased production in zones targeted for improved quality.