Dunlin Alpha Documentation
The three principal documents originally submitted for consultation in 2018 (but now superseded following the separation of the topsides and substructure programmes) are available below
- Dunlin Alpha Decommissioning Programme (DA DP) (Consultation Draft, August 2018)
- Dunlin Alpha Environmental Appraisal Report (DA EA) (August 2018)
- Dunlin Alpha Comparative Assessment Report (July 2018)
Supporting Documents
These were supported by a Stakeholder Engagement Report describing engagement activity over the course of the decommissioning planning journey since 2010. This is a live document, most recently updated in October 2021 before the OSPAR review of the derogation application. Further key supporting documentation associated with the development of the Dunlin Alpha programmes appear below:
- Dunlin Alpha Stakeholder Workshop Report 8 Nov 2017 Report On Proceedings
- Dunlin Alpha CA Stakeholder Workshop Report 3 May 2018
- Dunlin Alpha Cell Contents Technical Report (updated 1 February 2021)
- Dunlin Alpha Drill Cuttings Report
- FAQ: Drill Cuttings
- FAQ: Cell Contents (updated February 2021)
- Dunlin Alpha EIA Scoping Report (Feb 2016)
- Fairfield Waste Management Strategy
Additional documents and updates will be added in due course.
Dunlin Alpha Documentation 2018 Independent Review Group
The report by the Independent Review Group on the Draft Decommissioning Programme is also available:
Comparative Assessment Supporting Documents
The Comparative Assessment Report on decommissioning options references various studies, reports, academic papers and external information as described in the report, listed below. Where not available through links on this page, access can be arranged by emailing Stakeholder.Mailbox@fairfield-energy.com.
- OSPAR Decision 98/3 on the Disposal of Disused Offshore Installations
- CA Guidelines OGUK – Guidelines for Comparative Assessment in Decommissioning Programmes
- Guidance Notes – Decommissioning of Offshore Oil and Gas Installations and Pipelines
- Dunlin Alpha Decommissioning Option Screening for Comparative Assessment
- CGBS Safety Summary, Xodus
- Energy & Emissions Assessment, Xodus
- OSPAR Recommendation 2006/5 on a Management Regime for Offshore Cuttings Piles
- Leg Internals Study, Fairfield
- Transition Piece Study, Atkins
- Navaid Study, Atkins
- Concrete Cutting and Removal Study, Atkins
- Leg Failure Study, Atkins
- Cell-top Debris Study, Xodus
- Corrosion Protection– Dunlin Alpha Transition Piece Corrosion Protection Options Study, Frazer-Nash
- Transition Piece Longevity Study, Atkins
- Technical Risk Assessment, Atkins
- Legacy Collision Risk Assessment (Shipping and Fishing Decommissioning), Anatek
- Operational Collision Risk Assessment, Anatec
- Seabird Colonisation Study, Xodus
- Marine Growth Assessment, Xodus
- Marine Impacts Associated with Decommissioning of the Dunlin Alpha CGBS, Xodus
- Commercial Fisheries Baseline Study, Xodus
- Risk Analysis of Decommissioning Activities, Safetec
- Option 9 Datasheet 1 (Painting of transitions internal surface), Atkins
- Option 9 Datasheet 2 (Cathodic Protection of transitions external surface), Atkins
- Option 9 Datasheet 3 (Transition steel caps), Atkins
- Shipping and Fishing Decommissioning Risk Assessment, Anatek
- Analytical Hierarchy Process The Analytical Hierarchy Process by T.L. Saaty, McGraw Hill, 1980.
- Dunlin Alpha EIA Scoping Report
- Dunlin Alpha Pre-decommissioning Environmental Baseline Survey, Fugro
- Dunlin Alpha Pre-decommissioning Habitats Assessment, Fugro
- Dunlin Alpha Pre-decommissioning Cuttings Assessment Survey, Fugro
- Technical Review of CGBS Leg Removal, July 2021
- Topsides Based Cell Survey Sample Activities Close-out Report, Nov 2020