Preparing for Construction and Operation of Geological Repositories – Challenges to the Regulator and the Implementer

A joint international workshop of the RWMC Regulators’ Forum and the Integration Group for the Safety Case

25-27 January 2012


Structure of the workshop and organisation:

Session 1 introduces the workshop, its aims, the challenges we face and what we want to achieve.

Sessions 2 consists of presentations of national case studies from both the regulators’ and implementers’ viewpoints. It focuses on issues and practices in construction and operation of geological disposal facilities and on challenges that the institutional actors may also face.

Sessions 3-5 deal with specific technical subjects.

Each of these sessions will start with a short introduction by the session chair followed by 3-4 brief (10-15 minutes) presentations in plenary. The role of the Session Chair is to lead the plenary discussion in his/her Session. The Session Rapporteur will document key points of the session, both for the stocktaking in plenary discussion and for the workshop proceedings.

In addition to the plenary presentations, participants will be organized into small groups, each with 10-11 people, to further discuss the pre-selected subjects.

Sessions 6 summarizes the key points discussed in the workshop.

This workshop intends to be highly interactive, with significant involvement by participants to take part in in-depth discussions. Participants will also partake in small- group round table discussions to gain further insights of the selected topics.

Workshop Chair: Georg Arens, RWMC Regulators’ Forum Chair, BMU (Germany)

Workshop Co-Chair: Klaus Röhlig, IGSC Chair, Technical University of Clausthal (Germany)

Workshop programme

25 January (day 1)

Participants to collect security badge* at reception lobby, 8:45 – 9:30
Session chairs and rapporteurs to meet in Room D (ground floor), 9:00 - 9:20 am
* (note: proof of identification required)

Session 1

Opening of the Workshop

9:30-9:55

Welcome note and background information

Uichiro Yoshimura, NEA – (10 min)

Introduction to the workshop : Topics, objectives and structure

Georg Arens, Workshop Chair – (15 min)

Session 2

National Case Studies

9:55-12:00

National case studies will be presented by institutional stakeholders in this session. Presentations will focus on the experience and issues related to the construction and operation of DGRs, particularly on long-term passive safety constraints.

Example issues :

  • On regulatory context : respective role of regulators (if multiple regulators) ; the licensing process; post-closure requirements; operational safety regulations (i.e. mining regulation, nuclear safety regulation, radiation protection, …); retrievability; structure of the safety case; etc…
  • On policy making : making decisions on solutions ensuring both safety and public acceptance ; ensuring a transparent process involving stakeholders ; not postponing decisions; etc...
  • On implementation : demonstrating the industrial feasibility of the proposed solution; presenting a detailed design that balances potentially competing targets such as constraints related to construction, pre-closure safety and post-closure safety; illustrating the design choices within the framework of an optimisation process (BAT including costs, feasibility, retrievability options, time lapse for construction, etc); developing knowledge management aspects; updating QA; preparing for increased dialogue with, and scrutiny by, stakeholders; etc…

Morning Session Chair: Klaus Röhlig, Workshop Co-Chair

Morning Session Rapporteur: Shawn Smith, NRC

9:55-10:00

Session Chair opening remarks – (5 min)

The Finnish Experience with the Construction of Onkalo

Presentations by:

  • Implementer: Juhani Vira, Posiva – (15 min)
  • Regulator: Jussi Heinonen, STUK – (15 min)
  • Ministry: Jaana Avolahti, MEE – (15 min)

Identification of issues and points for clarification for later discussion – 5 minutes.

10:50-11:10

Break

11:10-12:00

Dealing with the current permissibility application for constructing a spent fuel DGR in Sweden

Presentations by:

  • Implementer: Olle Olsson, SKB – (15 min)
  • Regulator: Bengt Hedberg, SSM – (15 min)
  • Municipality: Marie Berggren/Virpi Lindfors, Municipality of Östhammar – (15 min)

Identification of issues and points for clarification, for later discussion - 5 minutes.

12:00-14:00

Lunch

14:00-17:00

Session 2 (continued)

Afternoon Session Chair: Georg Arens, Workshop Chair

Afternoon Session Rapporteur: Frans Boydon, UK-ONR

14:00-14:05

14:05-14:40

Session Chair opening remarks – (5 min)

Preparing as an organization, to submit or to review a construction license application for a DGR of ILW and HLW in France

Presentations by:

  • Implementer: Pascal Leverd, Sylvie Voinis / Fabrice Boissier / Andra – (15 min)
  • Regulator: Géraldine Dandrieux, ASN – (15 min)

Identification of issues and points for clarification, for later discussion - 5 minutes.

14:40 – 15:00

Experience in the Canadian programme in preparing for DGRs of all waste types

Presentation by:

  • Implementer: Paul Gierszewski, NWMO – (15 min)

Identification of issues and points for clarification, for later discussion - 5 minutes.

15:00 – 15:35

Experience in the Swiss programme in preparing for DGRs of all waste types

Presentations by:

  • Implementer: Piet Zuidema, Nagra – (15 min)
  • Regulator: Markus Hugi, ENSI – (15 min)

Identification of issues and points for clarification, for later discussion - 5 minutes.

15:35 – 16:00

Break

16:00 – 16:20

Preparing as an organization to review a construction license application for a DGR for HLW and SF in the USA

Presentation by:

  • Regulator: Brittain Hill, USNRC – (15 min)

Identification of issues and points for clarification, for later discussion - 5 minutes.

16:20-17:00

 

Session summaries by Session Rapporteurs-

Shawn Smith (10 min)

Frans Boydon (10 min)

Plenary discussion – (20 min)

- to be led by Session 2 Chairs

17:00 Cocktail reception

Jan. 26 (day 2)

Session 3

Industrial feasibility of Construction

9:00-12:25

Session Chair: Frédéric Bernier, FANC

Session Rapporteur: Sylvie Voinis, ANDRA

This session will focus on issues related to constructing of a repository.

Example issues: key safety issues to be addressed by implementer in order to ensure the design of the repository (i) is feasible to construct; (ii) meets all design requirements, including monitoring requirements and specific requirements related to the long-term safety of the repository; (iii) meets expectations of the regulator(s). The significance of URL experiments in the views of the implementers and regulators?

9:00-9:05

9:05-9:55

Session Chair opening remarks – (5 min)

Presentations on:

  • Verification of Drift Seal Systems at the Morsleben Repository, Germany - Proof of Technical Feasibility and Functionality: Jürgen Wollrath, BfS – (15 min)
  • Planning for implementation of a DGR for ILW and HLW in a volunteer process in the UK: Cherry Tweed, RWMD - (15 min)

Preparing for Reviewing the Construction License of a Deep Geologic Repository for low and intermediate level waste, The Canadian Regulatory Experience: Kathleen Klassen, CNSC - (15 min)

Identification of issues and points for clarification, for later discussion - 5 minutes.

9:55-10:20

Coffee break and move to round table discussions. Information of the round-table groups and participants will be provided at the workshop.

10:20-11:20

Round table discussions :

  • Refer to list of questions, to be provided separately.

11:20-11:30

Rapporteurs to upload presentations (by e-mail)

11:30-12:30

Round tables reports by round-table rapporteurs

12:30-13:50

Lunch

Session 4

Industrial feasibility of operation

13:50 - 18:10

Session Chair: Risto Paltemaa, STUK

Session Rapporteur: Paul Gierszewski, NWMO

This session will discuss various operational issues of a repository.

Example issues : What are the main operational issues? What key accidents and disturbances should be addressed in design and management system? Impact of retrievability on the design and operations of a repository.

13:50-13:55

13:55-15:00

Session Chair Opening Remarks - (5 min)

Presentations:

  • Towards the licensing of the GD: Illustration of the 2009-2010 intermediate milestone – ANDRA / IRSN, France,-  Sylvie Voinis/Michaël Tichauer - (15 min)
  • WIPP Pre-Licensing and Operations: Developer’s and Regulator’s Perspectives, Tom Peake, EPA (& Russ Patterson, DOE) – (30 min)
  • Designing consideration for a HLW / Spent Fuel DGR in Germany with retrievability requirements: Bruno Thomauske, RWTH Aachen - (15 min)

Identification of issues and points for clarification, for later discussion - 5 minutes.

15:00-15:15

Coffee break and move to round table discussions

15:15-16:15

Round table discussions :

  • Refer to list of questions, to be provided separately

16:15-16:25 Rapporteurs to upload presentations (by email)

16:20-17:15

Round table reports by rapporteurs

17:15-18:10

Session summaries by Session Rapporteurs

Session 3 and 4 rapporteur reports
- Sylvie Voinis (10 min)
- Paul Gierszewski (10 min)

Plenary discussion (25 min)
- to be led by Session Chairs

Jan. 27 (day 3)

Session 5

Licensing Aspects

9:00-13:00

Session Chair: Marie-Pierre Comets, ASN

Session Rapporteur: Piet Zuidema, Nagra

This session will evaluate the various licensing aspects during repository development.

Example issues : Level of flexibility of design that the licensing process allows. To what extent can the licensing process affect the implementation of the repository design and result in modifications? How does optimization affect later stage modifications of the design concept?

9:00-9:05

9:05-9:55

Session Chair opening remarks – (5 min)

Presentations on:

  • Example of KBS3-V and KBS3-H (including connection to optimisation/BAT): Olle Olsson, SKB – (15 min)
  • Optimization (results of the IGSC 2010 Topical Session): Lucy Bailey, NDA – (15 min)
  • A regulator’s view: Frans Boydon, UK-ONR – (15 min)

Identification of issues and points for clarification, for later discussion - 5 minutes.

9:55-10:20

Coffee break and move to round table discussions

10:20-11:20

Round table discussions :

  • Refer to list of questions, to be provided separately

11:20-11:30 Rapporteurs to upload presentations (by email)

11:25-12:25

Round table reports by round-table rapporteurs

12:25-12:55

Session summary by Session 5 rapporteur

Piet Zuidema, NAGRA – (10 min)

Plenary discussion – (20 min)
- to be led by Session 5 Chair

Session 6

Summary and closing of the Workshop

13:00-13:10

Summary
Georg Arens and Klaus Röhlig – (10 min)

Closing remarks by NEA
Claudio Pescatore – (5 min)

Last reviewed: 24 January 2012