Section 5-617 - Persons assisting in controlling discharge of hazardous substance(a) In this section, "discharge" includes leakage, seepage, or other release of a hazardous substance or material.(b) Except as provided in subsections (c) and (d) of this section, a person who is called on for assistance in an emergency is not subject to any civil liability or penalty as a result of assistance or advice rendered in: (1) Mitigating the effects of an actual or threatened discharge of a hazardous substance or material;(2) Preventing a discharge of a hazardous substance or material;(3) Cleaning up a discharge of a hazardous substance or material; or(4) Attempting any of the acts in this subsection.(c) The immunity provided in subsection (b) of this section does not apply to a person: (1) Whose act or omission was the original cause of an actual or threatened discharge in whole or in part, and who would otherwise be liable for the act or omission; or(2) Who received compensation other than reimbursement for out-of-pocket expenses for rendering the assistance or advice.(d) Notwithstanding subsection (b) of this section, a person is liable for damages caused by that person's gross negligence or reckless, wanton, or intentional misconduct.