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CONTROL OF MAJOR ACCIDENT HAZARDS COMAH

Contents. BackgroundWho falls under the COMAH Regulations?Requirements of Top Tier sitesSafety Report StructureALARP demonstrationHow do we prevent Major Accidents at Stanlow?Assessment and On-going Monitoring. Content. BackgroundWho falls under the COMAH Regulations?Requirements of Top Tier

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CONTROL OF MAJOR ACCIDENT HAZARDS COMAH

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    1. CONTROL OF MAJOR ACCIDENT HAZARDS (COMAH) Discussion for IOSH Merseyside Branch 11 January 2011 Mike Brown HSSE Manager Stanlow Manufacturing Complex

    2. Contents

    3. Content

    4. What is a “Major Accident” Health & Safety Executive definitionHealth & Safety Executive definition

    5. Briefly, the Legislative Background …. Nypro (UK) chemical plant in Flixborough 1974: Cyclohexane released from a by pass installed to connect reactors either side of a faulty reactor that had been taken out of service. Disastrous explosion destroyed the chemical plant 28 workers were killed, a further 36 suffered injuries Extensive damage to property off site Advisory Committee on Major Hazards appointed by HSC, who proposed a three-part strategy: Identification of the sites; Control measures to prevent major accidents; and Mitigatory measures to limit the effects of any accidents which do occur Seveso, Italy 1976: accidental production and release of a dioxin, an unwanted by-product from a runaway chemical reaction, led to widespread contamination. 3,000 pets and farm animals died. 70,000 animals slaughtered to prevent dioxin entering the food chain. 193 people suffered symptoms. EC proposed a Directive on the control of major industrial accident hazards. The UK’s three-part strategy was highly influential in shaping the Directive, known as the Seveso Directive.Nypro (UK) chemical plant in Flixborough 1974: Cyclohexane released from a by pass installed to connect reactors either side of a faulty reactor that had been taken out of service. Disastrous explosion destroyed the chemical plant 28 workers were killed, a further 36 suffered injuries Extensive damage to property off site Advisory Committee on Major Hazards appointed by HSC, who proposed a three-part strategy: Identification of the sites; Control measures to prevent major accidents; and Mitigatory measures to limit the effects of any accidents which do occur Seveso, Italy 1976: accidental production and release of a dioxin, an unwanted by-product from a runaway chemical reaction, led to widespread contamination. 3,000 pets and farm animals died. 70,000 animals slaughtered to prevent dioxin entering the food chain. 193 people suffered symptoms. EC proposed a Directive on the control of major industrial accident hazards. The UK’s three-part strategy was highly influential in shaping the Directive, known as the Seveso Directive.

    6. Briefly …. More accidents: BP Texas City Buncefield Future changes?

    7. Content

    8. Application of the Regulations Chemicals (Hazard Information and Packaging for Supply) Regulations – CHIP RegsChemicals (Hazard Information and Packaging for Supply) Regulations – CHIP Regs

    9. Named Substances

    10. Generic Substances

    11. Top Tier COMAH

    12. Content

    13. Enforcing Authority

    14. Main Duties for COMAH Operators

    15. Purpose of COMAH Safety reports

    16. Purpose of COMAH Safety reports

    17. Purpose of COMAH Safety reports

    18. Purpose of COMAH Safety reports

    19. Purpose of COMAH Safety reports

    20. Content

    21. Safety Report Assessment Manual (SRAM)

    22. Section 9 - Descriptive Aspects

    23. Section 10 - Predictive Aspects

    24. Section 11 - MAPP & SMS Aspects

    25. Section 12 - Technical Aspects

    26. Section 12 - Technical Aspects (cont.)

    27. Section 13 - Environmental Aspects

    28. Section 14 - Emergency Response

    29. Improvement Plan

    30. Content

    31. ALARP Demonstration - Summary

    32. RISK BOUNDARIES & CBA

    33. Content

    34. Understanding the Process Safety pyramid

    35. Controls in a “Bowtie”

    36. Barrier Thinking for all Staff

    37. Content

    38. COMAH Safety Reports

    39. Intervention Visits

    40. HSE Publication L111

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