An advisory board of 9 members is created in the department composed of the following: 5 members who are residents of this state registered under sections 12701 to 12715, at least 4 of whom are well drilling contractors, and who shall be appointed by the governor with the advice and consent of the senate; an employee of the bureau of environmental and occupational health of the department, and a representative of a local health department, each to be appointed by the director; an employee of the geological survey section of the department of natural resources appointed by the director of the department of natural resources; and an employee of the water resources commission appointed by the executive secretary of the water resources commission. Of 4 well drilling contractors 1 shall be from each of 4 geographic regions:

    (a) Region 1: The Upper Peninsula.

    (b) Region 2: That part of the Lower Peninsula bordered on the south by Oceana, Newaygo, Mecosta, Isabella, Midland, and Bay counties and the area north of those counties.

    (c) Region 3: The area bordered on the north and west by Huron, Tuscola, Saginaw, Shiawassee, Livingston, Washtenaw, and Lenawee counties and the area south and east of those counties.

    (d) Region 4: The area bordered on the east and north by Hillsdale, Jackson, Ingham, Clinton, Gratiot, Montcalm, Kent, and Muskegon counties and the area south and west of those counties.