(a) No asphalt batching or continuous mix facility shall be located in the town of Coventry in an area which is less than four thousand feet (4,000′) from any hospital, nursing home, school, area of critical environmental concern, watercourse, or area occupied by residential housing. Such distance shall be measured from the outermost perimeter of the facilities property line to the outermost point of such properties as mentioned herein.
(b) Any facility in operation, prior to the enactment of this section, shall not be subject to the provisions of this section.