6.—(1) Network Rail shall, before carrying out any works to the exchange land referred to in article 30 in order to lay it out as replacement public open space, submit to the Agency for its reasonable approval a ground investigation programme and remediation strategy in respect of that land.
(2) Following completion of any works prescribed by any remediation strategy approved pursuant to sub-paragraph (1) Network Rail shall submit to the Agency for its reasonable approval a verification report.
(3) In the event that the Agency refuses to approve a verification report submitted to it under this paragraph, Network Rail shall submit a new verification report to the Agency for its reasonable approval.
(4) Any works proposed to be carried out by Network Rail in order to lay the exchange land out as replacement public open space shall not be commenced—
(a)prior to implementation of any ground investigation programme or remediation strategy approved pursuant to sub-paragraph (1); and
(b)until the Agency has approved a verification report submitted to it under this paragraph.