Sec. 4. Inquiries made to the program and activities and documents of the program that identify or describe an individual facility or operation are confidential, unless a clear and immediate danger to the public health or environment exists. Information concerning inquiries, activities, and documents of the program that identify or describe an individual facility or operation may not be made available for use by other divisions of the department without the consent of the person who:
(1) made the inquiry;
(2) participated in the activity; or
(3) provided the document.