71 Pa. Stat. § 180-1
The Environmental Quality Board shall consist of the Secretary of Environmental Resources, who shall be chairman thereof, the Secretary of Health, the Secretary of Commerce, the Secretary of Transportation, the Secretary of Agriculture, the Secretary of Labor and Industry, the Secretary of Community Affairs, the Executive Director of the Fish Commission, the Executive Director of the Game Commission, the Chairman of the Public Utilities Commission, the Executive Director of the State Planning Board, the Executive Director of the Pennsylvania Historical and Museum Commission, five members of the Citizens Advisory Council, and four members of the General Assembly. The Citizens Advisory Council members shall be designated by, and serve at the pleasure of, the Citizens Advisory Council. One of the General Assembly members shall be designated by, and serve at the pleasure of, the President Pro Tempore of the Senate, one by the Minority Leader of the Senate, one by the Speaker of the House of Representatives and one by the Minority Leader of the House of Representatives. In addition to the heads of the various departments as elsewhere in this act provided, the other members of the board may have named alternates to serve in their stead, the alternates for the members of the board from the Citizens Advisory Council to be selected by that council from members of the council and each other alternate to be selected by that particular member of the board in whose stead he is to serve. No person will serve as alternate for more than one board member.
Eight members of the board shall constitute a quorum.
71 P.S. § 180-1