(a)      The Department may issue a show cause order or a corrective order under this section if the Department has reasonable grounds to believe that the person to whom the order is directed has violated:

            (1)      This title;

            (2)      Any rule or regulation adopted under this title;

            (3)      Any plan for compliance issued under this title; or

            (4)      Any permit or registration issued under § 2-401 of this title.

      (b)      The Department is not required to issue a show cause order or a corrective order before enforcing this title by injunction or civil penalty under this subtitle.