(b) Provided that before a permit to operate a new commercial operations' waste disposal well may be granted, a public hearing shall be held on the application for a permit, and shall fix the date, time, and place therefor. The operator or owner, prior to such public hearing, shall give public notice on three separate days within a period of thirty days prior to the public hearing, with at least five days between each publication of the notice, both in the official state journal and in the official journal of the parish in which the well is to be located, that application for a permit for a new commercial operations' waste disposal well has been made and that a public hearing on the matter will be held on the date and at the time and place which shall be stated in the public notice. The assistant secretary shall prescribe the form of the advertisement. In addition, the applicant for a permit shall place an advertisement in the same newspapers but not in the classified advertisement or public notice section of the newspapers, in a form which shall be not less than one-half page in size and printed in bold face type; which shall inform the public that application for a permit has been made for a new commercial operations' waste disposal well and that a public hearing, at which all interested persons are charged to be present and to present their views and which shall state the date, time, and place at which the meeting will be held. The content of both the public notice and the one-half page announcement or advertisement also shall include the name of the owner or operator; location of the proposed well, materials to be disposed in the well, a statement that comments may be sent to the assistant commissioner of the Office of Conservation prior to the public meeting, and the mailing address of the assistant secretary. "Commercial operations" as defined in this Section pertains to those who dispose of waste materials off the site where produced by others. "Waste materials" is defined as any material, excluding drilling muds, produced waters and crude oil residues, for which no use or reuse is intended and which is to be discarded.