NuLeAF presentationMagnox ILW strategy 14th May 2015

May 14th 2015

May 14th 2015 2

Looking back

• Following consultation, the preferred options identified a regional approach to ILW storage and FED treatment

• Put on hold until new Magnox/RSRL PBO was in place

• Key inputs from stakeholder workshops remain valid

• Previous input has been considered

• Magnox believes that the consolidation strategy is appropriate

• However – there are some changes to the direction of travel

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Our learning from engagementKey points taken on board:

• Strategy needs to look at the big picture and not at sites in isolation

• Transfers should be made on a regional basis where practicable

• The use of rail transport should be maximised where possible

• The amount of construction work undertaken should be minimised where possible

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Current position - strategy reviewed

• The new contract requires the PBO to review all Magnox strategies and demonstrate value for the taxpayer

• The ILW strategy review considered:

– stakeholder feedback from previous engagement– progress and learning from delivery of previous strategies– development of new waste routes/options– new ideas and operational experience brought by the PBO– introduction of two new consolidation options for waste management

treatment of ILW pond skips

packaging of IONSIV cartridges

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Scope of review

Plans still require further approvals and stakeholder engagement

1. ILW packaging

2. ILW interim storage

3. FED management

4. ILW pond skip management (new)

5. IONSIV cartridge management (new)

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1. ILW packaging

Changes in packaging strategy:• Hinkley• Berkeley (for some waste)

Delivering value to the taxpayer

New encapsulated self-shielding waste packages available:

- 6 m3 concrete box, TRU-Shield package - Same benefits as ductile cast iron containers but present a significant saving

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2. ILW interim storage

Changes in interim storage strategy:

• Consolidation of ILW from Sizewell and Dungeness in the existing ILW store at Bradwell

Making best use of assets on a regional basis

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3. Fuel element debris

Management options considered

• package for LLW disposal• package for ILW disposal • decay storage for LLW disposal• treatment by dissolution

Informed by:• some sites are well progressed in delivery of some options (eg

Bradwell and Trawsfynydd)• new waste routes have potentially become available

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3. Fuel element debris continued

Pursuing opportunities for new waste routes where appropriate

• Sizewell and Oldbury - change to LLW disposal

• Hinkley - FED characterisation indicates majority of waste is likely to be ILW - intention to package to allow interim storage on site

• Bradwell - continue with dissolution and investigate additional waste routes to reduce volume to be dissolved

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4. ILW pond skips (new)

• Central skip treatment facility for all skips from Dungeness, Sizewell and Oldbury (approximately 175 skips)

• Hinkley as a possible site for the facility. Facility could be mobile and move to other sites

• Trial work ongoing at Hinkley to inform decision making

Reviewing best options for decontamination of ILW pond skips

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5. IONSIV cartridge management (new)

• Transfer of Dungeness and Sizewell IONSIV cartridges to Oldbury for retrieval and packaging (less than ten movements)

• Onward transfer to Berkeley for interim storage

Benefits include:– reduces dose to the workforce– enabler to waste consolidation strategy– saving for taxpayer

Avoid the need for three waste packaging projects

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Regional summaries

South West

• Hinkley – change to new packaging (6 m3 concrete boxes), no FED dissolution, encapsulation plant, modified ILW store

• Oldbury – ILW packages to Berkeley, IONSIV cartridges from Sizewell and Dungeness received for packaging, pond skips to go to central facility, FED to be disposed of as LLW

• Berkeley – combination of DCICs and 6 m3 concrete boxes, possible second ILW store, receipt of ILW packages from Oldbury

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Regional summaries

South East

• Sizewell - FED disposed of as LLW, ILW packages consolidated in existing Bradwell ILW store, IONSIV cartridges to Oldbury for packaging and Berkeley for interim storage, ILW pond skips to central skip milling facility

• Dungeness - ILW packages consolidated in existing Bradwell ILW store, IONSIV cartridges to Oldbury for packaging and Berkeley for interim storage, ILW pond skips to central skip milling facility

• Bradwell - receive Sizewell and Dungeness ILW, continuation of FED dissolution

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Our plans- major benefits

- Significant savings to the taxpayer (£200m)

- Minimises construction overall, meaning less disturbance and fewer transports

- Minimises dose to workers

- Takes into account the stakeholder feedback received previously

- No additional detriment to the environment

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Engagement to date

• Continual dialogue with regulators and NDA

• Presentation to SSG Chairs – December 2014

• Presentations to Dungeness, Sizewell, Bradwell, Berkeley, Oldbury and Hinkley SSGs (Jan – Mar 2015) – public meetings

• Meetings held with the appropriate local authority planning officers

• Site MPs briefed

• Media coverage

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What’s next?

• Public exhibitions, Q&A sessions, online and printed FAQ documents to support the planning process

• Continued engagement with the public through SSGs and “drop-in events”

• Media briefing of plans

• Seek appropriate regulatory approvals

• Move into the strategy implementation phase

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