The operator’s opinion as to the likelihood of any of the following matters occurring as a consequence of the abandonment:–
(a) the flooding of any worked areas: such areas to be shown on a plan or a schematic drawing identifying the location and extent of such workings;
(b) the migration of water to any other mine (whether or not abandoned) and the name of any such mine;
(c) the recovery levels of ground water within the mine workings being reached and the period of time within which those levels will be reached; and
(d) the discharge of water on to land or into surface water and the location and chemical composition of any such discharge,
together with the information on which the opinion is based.