The East Anglia ONE Offshore Wind Farm Order 2014

Pre-construction plans and documentation

10.  The licensed activities or any part of those activities shall not commence until the following (as relevant to that part) have been submitted to and approved in writing by the MMO—

(a) a design plan at a scale of between 1:25,000 and 1:50,000, including detailed representation on the most suitably scaled admiralty chart, to be agreed in writing with the MMO in consultation with Trinity House and the MCA which shows—

(i) the proposed location and choice of foundation of all offshore substations;

(ii) the height, length and width of all offshore substations;

(iii) the length and arrangement of all cables comprising Work No. 3A;

(iv) the dimensions of all gravity base foundations;

(v) the dimensions of all jacket foundations;

(vi) the proposed layout of all offshore substations including any exclusion zones under condition 2 and/or identified under condition 11(h)(iv);

(vii) a plan showing the indicative layout of all offshore substations including all exclusion zones (insofar as not shown in paragraph (vi)) and showing the indicative programming of particular works as set out in the indicative programme to be provided under sub-paragraph (b)(iv); and

(viii) any exclusion zones/micrositing requirements identified in any mitigation scheme pursuant to condition 11(j);

to ensure conformity with the description of Works No. 2 and 3A and compliance with conditions 1 to 5;

(b) a construction and monitoring programme to include details of—

(i) the proposed construction start date;

(ii) proposed timings for mobilisation of plant, delivery of materials and installation works;

(iii) proposed pre-construction surveys, baseline report format and content, construction monitoring, post-construction monitoring and related reporting in accordance with conditions 11(h), 17, 18 and 19; and

(iv) an indicative written construction programme for all offshore substations and cables comprised in the works at paragraph 2(2) of Part 1 (licensed marine activities) of this Schedule (insofar as not shown in paragraph (ii));

with details pursuant to paragraph (iii) to be submitted to the MMO at least six months prior to the first survey unless otherwise agreed in writing with the MMO;

(c) a construction method statement in accordance with the construction methods assessed in the environmental statement and including details of—

(i) drilling methods and disposal of drill arisings and material extracted during seabed preparation for foundation works and cable sandwave preparation works;

(ii) soft start procedures with specified duration periods;

(iii) offshore substation location and installation, including scour protection;

(iv) cable installation, including cable landfall and cable protection;

(v) contractors;

(vi) vessels and vessels transit corridors; and

(vii) associated and ancillary works;

(d) a project environmental management and monitoring plan to include details of—

(i) a marine pollution contingency plan to address the risks, methods and procedures to deal with any spills and collision incidents during construction and operation of the authorised scheme in relation to all activities carried out;

(ii) a chemical risk assessment to include information regarding how and when chemicals are to be used, stored and transported in accordance with recognised best practice guidance;

(iii) waste management and disposal arrangements;

(iv) the appointment and responsibilities of a fisheries liaison officer and an environmental liaison officer; and

(v) a fisheries liaison and coexistence plan to ensure relevant fishing fleets are notified of commencement of licensed activities pursuant to condition 6 and to address the interaction of the licensed activities with fishing activities;

(e) a scour protection management and cable armouring plan providing details of the need, type, sources, quantity and installation methods for scour protection;

(f) only when driven or part-driven pile foundations are proposed to be used as part of the foundation installation, a marine mammal mitigation protocol in line with JNCC guidelines for minimising acoustic disturbance to marine mammals;

(g) a cable specification and installation plan, to include—

(i) technical specification of offshore cables below MHWS, including a desk-based assessment of attenuation of electro-magnetic field strengths, shielding and cable burial depth in accordance with industry good practice;

(ii) a detailed cable laying plan for the Order limits, incorporating a burial risk assessment to ascertain suitable burial depths and cable laying techniques, including cable protection; and including contingency plans if burial is not achieved through preferred techniques; and

(iii) appropriate methods such as a trawl or drift net to be deployed along the offshore subsea export cables between Work No. 1 in Schedule 9 (deemed licence under the Marine and Coastal Access Act 2009 – generation assets) and mean low water mark, following the survey referred to in condition 19(2)(d) to assess any seabed obstructions resulting from burial of the export cables;

(h) a written scheme of archaeological investigation in relation to the offshore Order limits seaward of mean low water in accordance with the draft written scheme of investigation: archaeology and cultural heritage (offshore), industry good practice and in consultation with English Heritage (and, if relevant, Suffolk Coastal District Council) to include—

(i) details of responsibilities of the undertakers, archaeological consultant and contractor;

(ii) a methodology for any further site investigation including any specifications for geophysical, geotechnical and diver or remotely operated vehicle investigations;

(iii) archaeological analysis and reporting of survey data, and timetable, which is to be submitted to the MMO within four months of any survey being completed;

(iv) delivery of any mitigation including, where necessary, identification and modification of archaeological exclusion zones;

(v) monitoring during and post construction, including a conservation programme for finds;

(vi) archiving of archaeological material; and

(vii) a reporting and recording protocol, including reporting of any wreck or wreck material during construction, operation and decommissioning of the authorised scheme;

(i) a bed level monitoring and remediation plan for that area of Work No. 3B below MHWS in accordance with the outline Bawdsey bed level monitoring and remediation strategy, to include—

(i) monitoring of bed levels of London clay for the operational lifetime of the authorised scheme; and

(ii) a methodology for any remedial works in that area identified as necessary by such monitoring;

(j) a mitigation scheme for any Annex 1 features identified by the survey referred to in condition 17(2)(b);

(k) an offshore operations and maintenance and monitoring plan, in accordance with the outline offshore operations and maintenance and monitoring plan, to be submitted to the MMO at least four months prior to commencement of operation of the licensed activities and to provide for review and resubmission every three years during the operational phase;

(l) a coexistence statement demonstrating how the scheme design and construction methods, including cable specification, installation and armouring, reasonably avoids or mitigates effects on other marine users, including fisheries.