Maryland Health - General Section 17-102

      A public health and clinical laboratory shall provide services in connection with:

            (1)      Any inquiry that the Department or any health officer or physician makes about a communicable disease;

            (2)      Any inquiry that the Department makes about sewage;

            (3)      Any inquiry that the Department makes about a trade waste;

            (4)      Any inquiry the Department makes about a nuisance;

            (5)      Any examination or analysis of a water supply;

            (6)      Any examination or analysis of milk; and

            (7)      Any inquiry about any other matter that the Secretary requires.