In this section, “discharge” includes leakage, seepage, or other release of a hazardous substance or material. 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: Mitigating the effects of an actual or threatened discharge of a hazardous substance or material; Preventing a discharge of a hazardous substance or material; Cleaning up a discharge of a hazardous substance or material; or Attempting any of the acts in this subsection. The immunity provided in subsection (b) of this section does not apply to a person: 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 Who received compensation other than reimbursement for out-of-pocket expenses for rendering the assistance or advice. 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.