Except as otherwise provided, the Secretary may set a fee for any service of a public health and clinical laboratory in accordance with § 2–104 of this article. Except as provided in subsection (c) of this section, the Secretary may not impose any fee for any service of a public health and clinical laboratory in connection with: An examination or analysis of a water supply; An examination or analysis of milk; or An inquiry that any health officer or physician makes about a communicable disease. Subsection (b)(2) of this section does not apply to the production of farmstead cheese.