Concentrated sources of pollution shall not be allowed within spring protection zones. Spring protection zones include all land within one thousand five hundred (1,500) feet of a spring collection area which is at an elevation equal to, or higher than, the spring collection area as well as all land within one hundred (100) feet of a spring collection area which is at an elevation lower than the spring collection area. Concentrated sources of pollution include, but are not limited to, septic tanks, drain fields, garbage dumps, pit-privies, corrals, etc. Specially constructed sewer lines may be permitted within spring protection zones at the discretion of the Director. Such sewer lines may be permitted no less than three hundred (300) feet from a spring on all lands equal to or above the spring elevation, or, on land below the spring elevation, such sewer lines may be permitted no less than thirty (30) feet from the spring. The provisions of this Section shall be superseded by State or Federal regulations which may be adopted from time to time.