If the Department believes that a person is violating any provision of this subtitle or any regulation adopted under this subtitle, the Department may have the person served with a written order that directs the person served to abate the violation within a time specified in the order. Except as otherwise provided in the Administrative Procedure Act, the Department shall give any person served with an order under this section an opportunity for a hearing before the Department. After a hearing under this section, the Department may affirm, modify, or withdraw the order.