For the purposes of these guidelines:

Aquifer means a geological structure or formation or an artificial land fill permeated or capable of being permeated permanently or intermittently with water.

Groundwater means any water contained in or occurring in a geological structure or formation or an artificial landfill below the surface of land.

Inject means to introduce a fluid or substance by force into a geological structure or formation. For the avoidance of doubt, it includes the placement of any substance or matter into a well or excavation.

Remediation of groundwater refers to the process of removing or changing the state of the groundwater to reduce or limit the effect of contamination that may pose a risk of harm to human health or the environment.