(a) which was not previously identified in the environmental statement is found at any time when carrying out the authorised development; or 

(b) is encountered following the further ground investigation of boreholes BHC06 and BHC101 referred to in the ground investigation report carried out under sub-paragraph (1)(a); or 

(c) is encountered whilst following the further ground investigation within the limits of deviation of Work No. 5 carried out under sub-paragraph (1)(b), 

it must be reported as soon as reasonably practicable to the county planning authority, the local planning authority, the Environment Agency, and, in the event of any contaminated land, including groundwater, being found within Lowestoft Harbour, the harbour authority. 

(3) As soon as reasonably practicable (and in any event not later than 30 days) following the submission of a report pursuant to sub-paragraph (1), the undertaker must submit for approval a scheme to the county planning authority setting out how the nature and extent of contamination on site will be assessed by way of an investigation and risk assessment. 

(4) The undertaker must implement the approved scheme and upon completion of it submit for approval to the county planning authority a written report of the findings of the scheme. 

(5) If the county planning authority determines, following receipt of the report submitted by the undertaker pursuant to sub-paragraph (4), that remediation of the contaminated land is necessary, a written scheme and programme for the remedial measures to be taken to render the land fit for its intended purpose, must be submitted for approval by the county planning authority. 

(6) Remediation must be carried out in accordance with the scheme approved under sub- paragraph (5). 

(7) Following completion of the remediation carried out pursuant to sub-paragraph (5), a verification report that demonstrates the effectiveness of the remediation carried out must be submitted to the county planning authority for approval. 

(8) In this paragraph, where approval or determination is sought by the undertaker from the county planning authority, before giving any approval or determination the county planning authority must consult with the local planning authority, the Environment Agency and, where the approval or determination relates to matters within Lowestoft Harbour, the harbour authority. 

## Mooring 

9.  The new bridge must not be opened for traffic until Work No. 7 has been made available for use by recreational vessels. 

## Written schemes of investigation 

10.  The authorised development must be carried out in accordance with the scheme-wide written scheme of investigation. 

## Navigation risk assessment 

11. —(1) Prior to commencement of construction of the new bridge and following consultation with the harbour authority, the undertaker must undertake a vessel simulation which takes account of the final design of the new bridge. 

(2) Prior to commencement of construction of the new bridge and following consultation with the harbour authority and the PMSC Stakeholder Group, the undertaker must update the preliminary navigation risk assessment to take account of the final design and construction methodology of the new bridge and, in doing so, must use the results of the vessel simulation carried out under sub-paragraph (1). 

(3) Following the update of the preliminary navigation risk assessment carried out pursuant to sub-paragraph (2), the undertaker must submit the updated navigation risk assessment to the harbour authority for its approval, which must not be unreasonably withheld. 

