For the purpose of this article, the following terms shall be defined as indicated in this section:
The removal and disposal of hazardous substances in accordance with applicable federal, state or local laws or regulations and in such a way as to prevent damage to persons, property or the environment, or danger to the public health, safety and welfare, and shall include, but not be limited to, actions necessary to monitor, assess and evaluate such danger or damage.
Any spilling, leaking, pumping, pouring, emptying, discharging, injecting, escaping, leaching, dumping or disposing.
Any solid, liquid or gas that has a degree of hazard rating in health, flammability or reactivity of 2, 3 or 4, as ranked by NFPA 704, 1987 Edition, or future equivalent publications published for the National Fire Protection Association, and/or any flammable, combustible or corrosive liquid; poisonous, toxic, radioactive, oxidizing or explosive material; flammable solid or unstable (reactive) chemical, as defined in the BOCA Fire Prevention Code, 1987 Edition.
An individual, firm, corporation, association, partnership, joint venture or other private or commercial entity.