To establish interim water and sanitation requirements for limited development and redevelopment of properties within the Business, Commercial, Light Industrial, and General Industrial zone districts not served by central water and sanitation facilities. The type and scale of the proposed use and the water and sewer demand of the proposed use shall be used to determine if the use of individual wells and on-site wastewater treatment systems is suitable. It is anticipated that the need for the overlay district will diminish or cease when central facilities become available.