12.—(1) An authorisation of—
(a)a direct discharge of any substance in list I or II; or
(b)any disposal, or tipping for the purpose of disposal, of any matter which might lead to an indirect discharge of any substance in list I or II,
may be granted for limited period only, and must be reviewed at least once in every 4 years when it may be renewed, amended or revoked.
(2) If the applicant for any such authorisation states, or it is otherwise evident, that he will be unable to comply with the conditions of the proposed authorisation, the authorisation shall not be granted.
(3) The Department shall monitor compliance with the conditions of any such authorisation and the effects of discharges on groundwater.
(4) If the conditions of any such authorisation are not complied with, the appropriate steps shall be taken to ensure compliance and, if necessary, the revocation of the authorisation.