Mo. Rev. Stat. § 260.510: Hazardous substances, director's powers and duties.

The director:

(1) Shall provide technical advice and assistance to other state agencies, to political subdivisions of the state and to other persons upon request for the prevention, control and response to hazardous substance emergencies;

(2) May require the person having control over a hazardous substance involved in a hazardous substance emergency to clean up the hazardous substance and take any reasonable actions necessary to end a hazardous substance emergency;

(3) May clean up a hazardous substance and take any actions necessary to end a hazardous substance emergency if the person having control over a hazardous substance fails to take reasonable actions required by the director to clean up such hazardous substance or end such hazardous substance emergency;

(4) Shall take those actions necessary to clean up a hazardous substance or to end a hazardous substance emergency if the person having control over the hazardous substance cannot be contacted within a reasonable amount of time;

(5) May require a person having control over a hazardous substance involved in a hazardous substance emergency to take such corrective actions as may be reasonably required to prevent a recurrence of hazardous substance emergencies;

(6) May clean up any release of a substance if such release is a threat to the environment.