(1) In accordance with 37-1-123, there is a board of plumbers. (2) The board consists of seven members: (a) two master plumbers; (b) two journey level plumbers; (c) one professional engineer qualified in mechanical engineering; (d) one representative of the department of environmental quality, who must have experience in the regulation of drinking water systems; and (e) one public member. (3) The board is allocated to the department for administrative purposes only as prescribed in 2-15-121.