5. The purpose of the monitoring of groundwater quality prescribed in section 4 must be to(1) determine the land’s prevailing hydrogeological conditions;
(2) identify the substances listed in Schedule V that are likely to be emitted on or in the land as a consequence of the carrying on on the land of certain industrial or commercial activities referred to in the first paragraph of section 4, and locate on the land the points of emission of the substances; and
(3) verify the presence of the substances in the groundwater where the water reaches the boundaries of the land and, where applicable, their concentration.