The board, upon receipt of information that a contaminant which is present in or is likely to enter a public water system may present an imminent and substantial danger to the public health, may take the following or other appropriate administrative actions:
(1) Issue such orders as may be necessary to protect the health of persons who are or may be users of such system, including travelers; and
(2) Commence a civil action for appropriate relief, including a restraining order or permanent injunction as provided in Sections 22-23-52 and 22-23-53.