Overview of EURSSEM Leo van Velzen Nuclear Research and consultancy Group, The Netherlands

Transcription

1 Overview of EURSSEM Leo van Velzen Nuclear Research and consultancy Group, The Netherlands

2 EURSSEM: ENVIRONMENTAL Radiation Survey and Site Execution Manual Contents ~ Introduction; ~ Background; ~ Aim; ~ Why has EURSSEM been developed, need? ~ Who was being involved? ~ What were the starting points? ~ When was the first version of EURSSEM available and contents? ~ Status of manual and future?

3 EURSSEM; Introduction; Background European Commission 6 th Frame work project: Co-ordination Network on Decommissioning of Nuclear Installations (CND) (1 January 2005 up to 1 July 2009) ~ Aim CND-project: ~ Promote common understanding of key-issues within the decommissioning community, to facilitate provision of relevant advice to Commission staff. ~ Encourage continuous improvement in capability and effectiveness.

4 EURSSEM; Introduction; Background CND-project Working groups 1. Strategies, Policies and Funding, Program/Project Management and Planning, and Cost Aspects. 2. Material Management and Characterization Techniques, and Recycle and Reuse of Materials. 3. Site Characterization, Remediation and Reuse 4. Institutional, Legal and Regulatory Aspects, Licensing and Decommissioning Plan, and Radiological Protection and Industrial Safety. 5. Environmental and Socio-economic Aspects, and Public Perception, Public Relation. 6. Dismantling Techniques, Decontamination Techniques, Dissemination of Best Practice, Experience and Know-how, and Evaluation of the Needs for Training. 7. Co-operation and relations with third parties and international organisations.

5 EURSSEM; Introduction; Background Aim CND workpackage 3 ~ Start the development of a manual / guidance for member states of the European Community that deals with all main aspects to be taken into account at Environmental Remediation Projects in a consistent manner. ~ The targeted audience of EURSSEM is all stakeholders e.g. problem holders, problem solvers or stakeholders defined by; e.g. public (may be laypersons), specialists, regulators, site owners, etc.

6 EURSSEM; Introduction; Development and Need Why has EURSSEM been developed, need? ~ Closing of nuclear facilities in the European Union; ~ Favorable and most supported and preferable option is bringing nuclear sites back to their original state; ~ Appliance of leading documents e.g. IAEA, MARSSIM, ITRC, (USA), CIRIA (UK) and others in the European Community for Environmental Remediation (ER); ~ Development of an enlarged manual/ consistent guidance for ER-projects; ~ Manual/guidance: focusing on exchange of information and experiences.

7 EURSSEM; Introduction; Development and Need Is there a need for a consistent guidance? YES Why? Relevant documents cover a large time span, change of vision over time, new gained experiences, new developments in techniques and materials,.deals in general with one main topic. Two examples: IAEA ITRC

8 EURSSEM; Introduction; Development and Need Overview of leading Environmental Remediation IAEA documents

9 EURSSEM; Introduction; Development and Need Overview of leading Environmental Remediation IAEA documents

10 EURSSEM; Introduction; Development and Need Overview of leading Environmental Remediation ITRC documents

11 EURSSEM; Introduction; Development and Need Overview of leading Environmental Remediation ITRC documents

12 EURSSEM; Introduction; Involvement ENVIRONET Environmental Remediation Training Course Who has been involved? ~ Coordination Network on Decommissioning (CND) a 6 th EC Framework project. Organization: ~ Steering Committee, contractors (11 companies from 8 countries); ~ Associated members, including some regulatory bodies (about 40 companies from 15 countries). ~ Impediments: Organization, funding, no direct benefits, no clear view of the timescale on having beneficial opportunities.

13 EURSSEM; Introduction; Starting points What were the starting points and motivation to apply? The manual/guidance is written from a service point of view. Meaning: ~ Free of names/pointers to commercial organizations, governmental regulations, etc.; ~ Leading strategies, leading practical option(s), etc. all strategies, all options.. no judging; ~ Applicable for all stakeholders involved in ER; ~ Balancing manual/guidance between concrete and layperson and detail ; ~ The manual/guidance has to be consistent.

14 EURSSEM; First version This first version of EURSSEM was available at 1 July 2009 as a conventional document. This version was reported to the European Commission as deliverable of the 6 th EC Framework Project Coordination Network on Decommissioning. Established by combining literature: IAEA; Member states consensus- MARSSIM (2002); US Regulator/Agencies CIRIA Safegrounds; UK Nuclear Industry and Defense sites ITRC; US Regulator Others; Diverse authors, companies, etc.

15 EURSSEM; First version Avoid doublings ~ And if a doubling is needed, the doubling has to have an added value. Add missing aspects ~ Stakeholder involvement and especially public ; ~ Non-Nuclear industry: NORM and TENORM; ~ Stewardship; ~ Archive for future referencing. ~

16 EURSSEM; First version; Contents ENVIRONET Environmental Remediation Training Course Contents of EURSSEM Version 01 (17 May 2010) 5 Major Sections and 7 specialized Appendixes. Section 1: Introduction; Purpose and scope, use of manual The Environmental Radiation Survey and Site Execution Manual (EURSSEM) has been developed to provide a consistent consensus approach and guidance to conduct all actions at radioactively contaminated and potentially radioactively contaminated sites and/or groundwater up to their release for restricted or unrestricted (re)use.

17 EURSSEM; First version; Contents Section 2: Development of a strategy, implementation and execution program to remediate radioactively contaminated sites. This section deals with the development of a strategy, implementation and execution of a program to remediate radioactively contaminated sites needs a sound knowledge of the necessary plans and topics involved in each of these plans.

18 EURSSEM; First version; Contents ENVIRONET Environmental Remediation Training Course Section 2: Development of a strategy, implementation and execution program to remediate radioactively contaminated sites. 2.1 Context and objectives 2.2 Designing a remediation program for radiological contaminated sites (major steps) 2.3 Stakeholder involvement 2.4 Historical site assessment 2.5 Risk assessment 2.6 Health physics, safety, security and environmental protection plan 2.7 Site characterization 2.8 Remediation plan 2.9 Waste management and transport of radioactive materials plan 2.10 Stewardship 2.11 Record keeping 2.12 Archive for future referencing 2.13 Quality management plan

19 EURSSEM; First version; Contents 2.3 Stakeholder involvement (example) Positions, interest and needs Consensus & compromise

20 EURSSEM; First version; Contents 2.5 Risk assessment (example) Conceptual framework for site Constrained optimization and remediation activities regions of H eff for critical group

21 EURSSEM; First version; Contents 2.12 Archive for future referencing (example) An Archive for future referencing is a possible method for filling in the (far) end of a Data Live Cycle. An Archive for future referencing has not to be seen as a special part of the project file, but as an archive that will contain information that can be consulted in the nearby and long-term future for answering questions dealing with the former radioactive contaminants present at the site and/or groundwater.

22 EURSSEM; First version; Contents Section 3; Characterization of radioactively contaminated sites Deals with all aspects of the planning and executing of a characterization as well as the analysis, validation, interpretation of collected data and drawing conclusions.

23 EURSSEM; First version; Contents ENVIRONET Environmental Remediation Training Course Section 3: Characterization of radioactively contaminated sites 3.1 Introduction 3.2 Definition of key terms adopted in site characterization 3.3 Design of field-based site characterizations: data quality objective process 3.4 Site characterization: Samples 3.5 Site characterization: Sampling frequencies, locations and patterns 3.6 Site characterization: Non-intrusive methods 3.7 Site characterization: Intrusive methods 3.8 Site characterization: Field survey and laboratory equipment used to measure radiation levels. 3.9 Site characterization: Analysis of samples 3.10 Site characterization: Data interpretation and drawning conclusions 3.11 Site characterization: Reporting results 3.12 Common mistakes

24 EURSSEM; First version; Contents ENVIRONET Environmental Remediation Training Course 3.3 Design of field-based site characterizations: data quality objective process (example) Major factors in site characterization General site characterization survey design aspects Radioactive contaminants Radioactively contaminated sites, sources of contamination and radionuclides of concern Establishing background environmental quality Establishing derived concentration guideline levels DCGLs Criteria for the selection of direct measurement, scanning and sample collection methods Additional investigations to support a radiological site characterization Quality control Radiological and additional surveys or investigations versus timeline Site preparation prior to remediation Regulatory confirmation and verification

25 EURSSEM; First version; Contents General site characterization survey design aspects (example) Figure 3.2 Example showing how a site might be classified prior to clean-up based on preliminary investigations, historical site assessment and supplementary investigations

26 EURSSEM; First version; Contents Section 4: Environmental remediation of radioactively contaminated sites This section of EURSSEM provides detailed guidance on the design of environmental remediation plans, approaches, and an overview of remediation techniques applicable for radioactively contaminated sites and/or groundwater.

27 EURSSEM; First version; Contents Section 4: Environmental remediation of radioactively contaminated sites 4.1 Introduction 4.2 Design of an environmental remediation plan 4.3 Remediation planning approaches 4.4 Remediation: evaluation criteria of approaches and techniques 4.5 Overview of available containment (CT) and source removal (SRT) remediation techniques 4.6 Remediation implementation activities 4.7 Conduction post-remediation activities

28 EURSSEM; First version; Contents 4.3 Remediation: planning approaches (example) There are three basic approaches for any intended remedial actions: 1 Monitored non-intervention; 2 Containment or blocking pathway(s); 3 Source term removal. Figure 4.1 Classification of Remediation planning Approaches.

29 EURSSEM; First version; Contents 4.5 Overview of available containment (CT) and source removal (SRT) remediation techniques This section contains different cross reference tables to assist in selection of a remediation techniques. ~ Technology (e.g. e.g. bioremediation, biodegration, etc.); ~ Medium (e.g. soil, soil and sludge, sediment, groundwater, etc.); ~ Contaminant (e.g. organic compounds, metals, radionuclides, etc.); ~ Brief characterization; ~ Detailed description in section.; ~ Planning approach or principle (e.g. biological removal, containment, etc.).

30 EURSSEM; First version; Contents Section 5: Stewardship The aim of Section 5 is to present more detailed guidance on stewardship: e.g., when to implement, what plans/actions should be carried out, etc. As depending on the site characteristics after remediation, the degree, extent and duration of control, if any, should be established. The organization responsible, e.g. long term stewardship, of the surveillance and verification of activities should be clearly identified.

31 EURSSEM; First version; Contents 5.1 Introduction (example) Stewardship plans cannot be static but have to be adapted to the development of a site, with respect to both its physical state and its use. Periodic revision of the stewardship plans will be necessary. Figure 5.1 Stewardship challenges

32 EURSSEM; First version; Contents Appendixes A Development of a decision rule and specification of the limits on decision errors B Field survey and laboratory analysis equipment for radioactive material concentrations and radiation levels C Derivation of the alpha scanning detection limit calculations D Supporting information for interpreting survey results and tables of statistical data E Glossary F References G Examples of report formats, checklists and files H Contributors to drafting, editing, review and website of EURSSEM

33 EURSSEM; First version; Contents ENVIRONET Environmental Remediation Training Course Some key figures of EURSSEM Version 01 (17 May 2010): ~ Sections: 5 ~ Appendixes: 7 ~ Paragraphs: 525 ( about the number of different ER topics addressed) ~ Pages: 714 ~ Figures: 91 ~ Tables: 108 ~ Examples: 33

34 EURSSEM; Status and future ENVIRONET Environmental Remediation Training Course

35 EURSSEM; Status and future EURSSEM website (initiative/network) Aim of the EURSSEM website: ~ Sharing knowledge and experiences; by updating/expanding the manual with the aid of companies, scientists, public,, stakeholders, etc. and make the manual/guidance available for everyone without restrictions; ~ Creating a direct benefit for members/participants in this network and for visitors of the website, e.g. automatically informed when update(s) has been placed and released at the website; ~ Creating opportunities for bringing together problem holders and problem solvers ; ~ Assisting in minimizing in missing an opportunity for problem holders as well as for problem solvers. ~ Installing new features at the website like a literature database, frequently asked questions, etc.

36 EURSSEM Acknowledgement CORE2: IT-company, building and maintaining the EURSSEM website; IAEA; Supporting in promoting EURSSEM (exchange of knowledge and experiences); NRG; Supporting updating and expanding EURSSEM and also supporting the IAEA Network ENVIRONET ; European Commission: Contributing to the 6th EC Framework project Coordination Network on Decommissioning ; Roland Schultz (CORE2, Germany), Lucien Teunckens (AF-Colenco, Swiss) and Christian Kunze (WISMUTEC, Germany) supporting EURSSEM as editor, reviewer, etc..

37 EURSSEM. Thank you for your attention.