(2) Any landscaping scheme prepared under sub-paragraph (1) must be in general accordance with the landscaping plans and set out details of all proposed hard and soft landscaping works, including— 

(a) location, number, species, size and planting density of any proposed planting; 

(b) cultivation, importing of materials and other operations to ensure plant establishment; 

(c) proposed finished ground levels; 

(d) hard surfacing materials; 

(e) ecological areas; 

(f) details of any existing trees to be retained; 

(g) details of the maintenance regime for the landscaping scheme; and 

(h) implementation timetables for all landscaping works. 

(3) All landscaping works must be carried out and maintained to a reasonable standard in accordance with the relevant recommendations of appropriate British Standards or other recognised codes of good practice. 

## Surface water drainage 

6. —(1) No part of the authorised development which comprises any part of a surface water drainage system may commence until written details of that surface water drainage system have been submitted to the county planning authority by the undertaker following consultation with the local planning authority, the harbour authority and the surface water drainage system has been approved in writing by the county planning authority. 

(2) The surface water drainage system submitted for approval by the county planning authority under sub-paragraph (1) must be in accordance with the drainage strategy. 

(3) The surface water drainage system must be constructed in accordance with the approved details referred to in sub-paragraph (1). 

## Highways lighting 

7. —(1) No part of the authorised development may commence until a written scheme of the proposed highway lighting to be provided for that part of the authorised development has been submitted to the county planning authority by the undertaker following consultation with the local planning authority and the harbour authority and the written scheme of the proposed highway lighting for that part of the authorised development has been approved in writing by the county planning authority. 

(2) The written scheme of proposed highway lighting submitted for approval by the county planning authority under sub-paragraph (1) must be in accordance with the highway lighting plan. 

(3) The authorised development must be carried out in accordance with the scheme approved under sub-paragraph (1). 

(4) Nothing in this requirement restricts lighting of the authorised development during its construction or where temporarily required for maintenance. 

## Contaminated land and groundwater 

8. —(1) The undertaker must carry out further ground investigation surveys— 

(a) as near as reasonably practicable to boreholes BHC06 and BHC101 referred to in the ground investigation report, prior to the commencement of the construction of Work No. 1E; and 

(b) of land within the limits of deviation of Work No. 5, prior to the commencement of the construction of Work No. 5. 

(2) In the event that contaminated land, including groundwater— 

