As used in this article, unless the context clearly requires a different meaning:
(1) "Cleanup" means such actions as may be necessary to monitor, assess and evaluate the threat of release of hazardous waste or hazardous substances, the containment, collection, control, identification, treatment, dispersal, removal or disposal of hazardous waste or other such actions as may be necessary to respond to hazardous waste or hazardous substance emergencies or to prevent, minimize or mitigate damage to the public health, safety, welfare or to the environment, and includes, where necessary, replacement of existing, or provision of alternative, drinking water supplies that have been contaminated with hazardous waste as a result of an emergency;
(2) "Cleanup costs" means all costs incurred by the director, or with the approval of the director, by any state agency or person participating in the cleanup of a hazardous waste or hazardous substance emergency or remedial action and also includes responding to emergencies that may contain petroleum products: Provided, That cleanup costs do not include expenditures for remediation of or responding to releases from underground storage tanks;
(3) "Generator" means any person, corporation, partnership, association or other legal entity, by site location, whose act or process produces hazardous waste as identified or listed by the director in rules promulgated pursuant to section six, article eighteen of this chapter, in an amount greater than five thousand kilograms per year.
All other terms have the meaning as prescribed in the rules promulgated by the director pursuant to the provisions of section six, article eighteen of this chapter.