(a) Pursuant to the authority contained in article 12 of the Public Health Law, Water Pollution Control Board, after having made proper studies and having held public hearings on due notice with reference thereto, hereby adopts and assigns the following classifications and standards of quality and purity to the various waters as specifically designated and described below and subject to the definitions and conditions as hereinafter stated.

(b) Pursuant to article 12 of the Public Health Law, the Water Resources Commission, after proper study and following a public hearing conducted by the former Water Pollution Control Board, held on due notice, adopts the following amendments to the classifications and standards of quality and purity assigned to fresh surface waters of the Lake Ontario drainage basin to change item number 573 referring to Fourmile Creek, and item number 575 referring to Shipbuilders Creek and certain unnamed tributaries of Lake Ontario in table I, section 847.5, infra, as hereinafter defined. This adoption and assignment of standards of quality and purity to the above designated waters, as amended, shall be effective May 1, 1963.