10.—(1) No part of the authorised development may commence until—
(a)intrusive ground investigations have been carried out for the purpose of assessing ground conditions; and
(b)a scheme to deal with the contamination of land, including groundwater, and ground gases which are likely to cause significant harm to persons or pollution of controlled waters or the environment, has, for that part, been submitted to and approved by the relevant planning authority.
(2) The scheme must include a risk assessment, supported by site investigation data, to identify the extent of any contamination and the remedial measures to be taken to render the land fit for its intended purpose.
(3) With respect to ground gases, the risk assessment required under sub-paragraph (2) must adopt the source-pathway-receptor principle to identify plausible contaminant linkages and take into account potential migration of off-site ground gases.
(4) The authorised development, including any remediation, must be carried out in accordance with the approved scheme unless otherwise agreed with the relevant planning authority.
(5) Should any remediation be required a verification report demonstrating the completion of works set out in the approved scheme and the effectiveness of the remediation must be submitted to, and approved, by the relevant planning authority prior to the date of final commissioning.
(6) The verification report submitted for approval under sub-paragraph (5) must include results of sampling and monitoring carried out in accordance with the remediation strategy to demonstrate that the site remediation criteria have been met along with any long-term post-remediation monitoring requirements.