No new plant shall be located or constructed, or any discontinued plant reconstructed or reopened, at any place in this state inside of, or within two (2) miles of the nearest point of, the existing corporate limits of any municipality with a population in excess of five hundred (500) according to the latest federal census, or within one (1) mile of the nearest boundary of the lands owned or controlled in connection either with any state, county, township, city or town park, or boulevard, or of any public school or hospital, or of any charitable, religious or educational institution.
Any existing plant which shall, on March 26, 1964, be in operation upon a site located in, or within the distance aforesaid from, any of the places or objects designated in this section shall not be denied a license solely by reason of its location.