significant environmental impact definition

significant environmental impact means having the potential to affect or impact the quality of the environment.
significant environmental impact means any Pre-Closing Soil or Groundwater Contamination only (i) which represents a significant existing impact on the Environment; or (ii) in respect of which there is a very high probability that it will give rise to a significant impact on the Environment and in either case would be likely to result in a Governmental Authority acting lawfully under Environmental Law issuing or making a notice, order or requirement for Remedial Action to be taken in respect of the same matter;