Asbestos Any material that contains more than one percent asbestos and is friable or is releasing asbestos fibers into the air above current action levels established by the United States Occupational Safety and Health Administration.
Explosives Explosives or other highly flammable substances shall not be stored or used on Railroad's property without the prior written approval of Railroad.
DEBRIS Contractor shall be responsible for the prompt removal of all debris which is a result of this contractual service.
Hazardous Substances The words "Hazardous Substances" mean materials that, because of their quantity, concentration or physical, chemical or infectious characteristics, may cause or pose a present or potential hazard to human health or the environment when improperly used, treated, stored, disposed of, generated, manufactured, transported or otherwise handled. The words "Hazardous Substances" are used in their very broadest sense and include without limitation any and all hazardous or toxic substances, materials or waste as defined by or listed under the Environmental Laws. The term "Hazardous Substances" also includes, without limitation, petroleum and petroleum by-products or any fraction thereof and asbestos.
Contamination The presence in, on or under land, air or water of a substance (whether a solid, liquid, gas, odour, heat, sound, vibration or radiation) at a concentration above the concentration at which the substance is normally present in, on or under land, air or water in the same locality, that presents a risk of Environmental Harm, including harm to human health or any other aspect of the Environment, or could otherwise give rise to a risk of non-compliance with any Statutory Requirement for the protection of the Environment.