General Presentation of the Project Accidental Risk Assessment Methodology for IndustrieS in the framework of SEVESO II directive General Presentation of the Project O. SALVI Direction des Risques Accidentels Institut National de l ’Environnement Industriel et des Risques Parc Technologique Alata, BP 2 - F-60550 Verneuil-en-Halatte, France telephone : +33 3 44 55 61 01, fax : +33 3 44 55 62 95, e-mail : olivier.salvi@ineris.fr

EC Work Programme extract 5th EC Framework Programme EESD Energy, Environment and Sustainable Development, Part A EESD-1999-7. RTD activities of a generic nature (i) The Fight against Major Natural and Technological Hazards I.2. Technological Hazards I.2.2. Risk assessment and forecasting. Development of innovative approaches for risk assessment and forecasting technologies. Aspects of integration of hazards in confined spaces or resulting from transport systems; information and early warning systems; interactions between technological hazards and city structures, living / working practices. I.2.3. Risk mitigation and management. The development of low risk, low environmental impact technologies and practices, risk mitigation, integrated decision making support systems and information and emergency management.

CONTENTS Context and objectives Work description The Consortium, Review Team & collaborations

Major Accident Hazard Assessment in the context of Seveso II + PPAM + SMS + Technical Safety UNIT A UNIT B How to assess … the major accident hazards ? the prevention management effectiveness ? You cannot manage if you cannot measure NEED OF INDICATORS

ARAMIS Objectives To identify reference scenarios with some safety devices some safety management To build up a risk level index integrating consequence severity evaluation management effectiveness evaluation environment vulnerability evaluation To share experience & propose an harmonised approach in risk assessment in the context of Seveso II

A R A M I S The Methodology Industrial UNIT Major Accident Hazards Reference Accident Scenarios

WP 1 : Scenario identification A. Algorithm for Major Accident Hazards identication based on industrial equipement combined to hazardous substances (67/548 CE) B. Review of safety devices commonly used (norms, regulation, state of the art...) using the bow tie approach

Bow Tie Approach Undesirable Event Sec. Critical Event Initiating Event Critical Event (LOC,…) Major Events Dangerous Phenomena Current Event

WP 1 : Scenario identification Industrial UNIT Reference Accident Scenarios State of the art in policies conception operation and control mitigation Lessons learnt from accidents Major Accident Hazards Algorithm

WP 1 : Scenario identification A. Algorithm for Major Accident Hazards identication based on industrial equipement combined to hazardous substances (67/548 CE) B. Review of safety devices commonly used (norms, regulation, state of the art...) C. Lessons learnt from accidents and analysis of the most common Causes D. Definition of Reference Accident Scenarios Using risk analysis methods (HAZOP, Preliminairy Hazards and Consequences Analysis, FMEA...) Taking into account some safety barriers

A R A M I S The Methodology Industrial UNIT Major Accident Hazards Reference Accident Scenarios So Sref

WP 2 : Consequence severity evaluation A. Review of models for the evaluation of physical effects B. Definition of the Severity index S (method for composition) Modelling giving effect distances and areas (A) Kinetic creterion (K) Intervention criterion (I) Domino effect criterion (D) S = F ( A ; K ; I ; D...)

A R A M I S The Methodology Industrial UNIT Major Accident Hazards Reference Accident Scenarios Safety Management (Major Accident Prevention Policy) M So Sref

WP 3 : Prevention management efficiency A. Guide (reference) for safety devices / actions List of safety barriers : devices / operations Technical evaluation by adapting the IEC 61508 / 61511 concepts

Organisation = Safety Assurance H A Z A R D S Safety Barriers C O N S E Q U ORGANISATIONAL ACTIVITIES FOR BARRIER ASSURANCE Major Accident

WP 3 : Prevention management efficiency A. Guide (reference) for safety devices / actions List of safety barriers : devices / operations Technical evaluation by adapting the IEC 61508 / 61511 concepts B. Management modelling and evaluation Review of existing approach Criteria and techniques for the evaluation of safety performance C. Definition of the Management efficiency index M

A R A M I S The Methodology V Spatial Environment Vulnerability Industrial UNIT Major Accident Hazards Reference Accident Scenarios Safety Management (Major Accident Prevention Policy) M So Sref

WP 4 : Environment vulnerability A. Typology of elements to describe the unit environment : human targets environmental targets infra-structures B. Criteria to characterise the sensitivity and method for ranking C. Use of GIS D. Definition of the Vulnerability index V

A R A M I S The Methodology Spatial Environment Vulnerability V Industrial UNIT Major Accident Hazards Reference Accident Scenarios Safety Management (Major Accident Prevention Policy) M RL  F ( Sref ; M ; V ) So Sref

WP 5 : Risk level characterisation and validation A. Definition of Risk Level index RL RL ~ F ( S ; M ; V ) B. Cases studies on 3 Seveso plants C. Writing a user ’s guide with feedbacks

WP 6 : Valorisation & dissemination A. Definition of needs of potential users B. Creating a CD-ROM (method description) + web site C. Organising milestone workshops with Competent Authorities Industrialists Risk experts

WP 6 : Valorisation & dissemination Industrial Association In the consortium ARAMIS METHODOLOGY RL  F ( Sref . M . V ) Industrialists + Competent Authorities Review Team Public Web & workshops

WP 7 : Parallel review A. Constitution of the parallel review team B. Performance of the parallel reviews C. Proposal of applications for risk related decision-making

The Consortium

The Project Steering Committee

The Project Review Team

Competent Authorities The Collaborations EC Seveso directive Risk Experts ARAMIS Team Competent Authorities Industrialists

A R A M I S Work Plan WP1 Scenario identification WP6 Project Management WP1 Scenario identification WP6 Valorisation & Dissemination WP7 Parallel Review WP3 Prevention management efficiency M WP2 Severity evaluation S WP4 Evironment vulnerability V WP5 Risk level characterisation & validation with case studies

Project schedule WP 0 WP 1 WP 2 WP 3 WP 4 WP 5 WP 6 WP 7 2001 2002 2003 2004 2005 WP 0 WP 1 WP 2 WP 3 WP 4 WP 5 WP 6 WP 7 WS1 WS2

CONCLUSION A method to assess the major accident hazards based on the evaluation of the consequences Evaluation of the management efficiency : technical and organisational aspects, to reach the goals of the directive Evaluation of the environment sensitivity : useful for land-use planning / emergency plans 3 independant indexes for comparability : help for decision making and management Harmonisation : a hard challenge