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Chapter 24 Fixed Facility Incident Consideration

Haz Mat Incident Considerations. Chapter 24 Fixed Facility Incident Consideration. Fixed Facility Incident Consideration. Session Objectives Identify the impact of fire and safety features on the behavior of the products during an incident

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Chapter 24 Fixed Facility Incident Consideration

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  1. Haz MatIncident Considerations • Chapter 24 • Fixed Facility Incident Consideration

  2. Fixed Facility Incident Consideration • Session Objectives • Identify the impact of fire and safety features on the behavior of the products during an incident • Explain the significance of fire and safety features in the risk assessment process • Identify methods for determining the pressure and amount of lading in facility containers

  3. Codes, Ordinances and Regulations • The Uniform Fire Code • Uniform Building Code • NFPA 704 - Hazard identification system

  4. Codes, Ordinances and Regulations • Health and Safety Code • Locally adopted ordinances • SARA, Title III • Emergency planning, community right to know and emergency notification

  5. Pre-Plan • Type(s) and amount(s) of materials • The hazards of each material • Potential health and environmental effects • In-house protection systems, utilities, and facility layout • Response routes, points of entry, barriers, emergency escape routes, and other access information

  6. Pre-Plan • Identify potential exposure problems • Identify potential avenues of spread • Determine local capabilities and resources

  7. The Pre-Planning Process • Identify target hazards • Compile information on target hazards

  8. Sources of information include: • Building permits • Inspection reports • Hazardous materials permits • Past incident reports • Hazardous Materials Management Plan

  9. Hazardous Materials Management Plans (HMMPs) • Developed and maintained by personnel at the fixed facility • Must be given to the agency having emergency response authority • Required

  10. HMMP Must Contain: • General Information • Facility Storage Map • Hazardous Materials Inventory Statement • Separation of materials • Monitoring Program • Record Keeping Forms • Emergency Equipment • Emergency Response Plans

  11. Pre-Plans • A pre-plan usually consists of two parts: • Quick access information • Plot plan • Pre-plans should be set up in a standard format for all fixed facilities • exercise the plan

  12. Fixed Facility Systems • Containers and tanks • Piping, valves and fittings • Signage • Security • Ignition sources • Shelf storage • Spill control, drainage and containment • Ventilation

  13. Fixed Facility Systems • Separation from incompatible hazardous materials • Hazardous materials storage cabinets • Fire extinguishing systems • Explosion venting or suppression • Standby power • Limit controls • Manual alarm

  14. Fixed Facility Systems • Supervision • Emergency vehicle access • Toxic gas storage • Gas detection • Local gas shut off • Automatic shut off • Enunciator panel

  15. Fixed Facility Containers

  16. Fixed Facility Containers • Non-bulk containers • Intermediate bulk containers • Fixed storage tanks • Underground tanks • Above ground tanks

  17. Hazardous Materials Storage Tank Regulations • Uniform Building Code (UBC) • Uniform Fire Code (UFC) • Occupational Safety and Health Administration (OSHA) • Locally adopted Hazardous Materials Storage Ordinances (HMSO)

  18. Vertical Atmospheric Fixed Roof Tanks

  19. Vertical Atmospheric Fixed Roof Tanks • Wider then they are tall • Fat roof or an inverted cone shaped roof • May be designed with weak roof-to-shell attachments • Usually contain flammable, combustible and corrosive liquids

  20. Floating-Roof Tanks • Very large tanks • Roofs float on liquid inside • limits the vapor space • Designed for flammable and combustible liquids that readily vaporize

  21. Covered Floating-Roof Tanks • Fixed roof with a inner floating roof • Can be identified by large vent openings around the top of the tank • Designed to contain flammable and combustible liquids

  22. Vertical Low Pressure Fixed-Roof Tanks • Taller than they are wide • Dome top • designed to accommodates changes in vapor pressure • Operate at pressures up to 15 psig • Used for flammable and combustible liquids and other types of haz mats

  23. Horizontal Above Ground Low Pressure Storage Tanks • Above ground tanks that lay horizontally • Potential problems include: • possible failure of supports during a fire • possible inadequate venting • Generally contain gasoline, naphtha or fuel oil

  24. Pressure Horizontal Tank • Cylindrical with rounded ends • Usually mounted horizontally on concrete foundation walls or legs • Generally painted white or another highly reflective color • Contain liquefied gases • May have built-in protection systems

  25. Spherical Tanks • Ball-like shape • Contain high pressure gases • Painted white or other reflective color • Pressure relief valve at the top • No pressure relief valve may indicate cryogenic liquids

  26. Cryogenic Liquid Tanks • Taller than they are wide, and have domed tops • Rest on legs rather than directly on the ground • Store cryogenic liquids

  27. Underground Storage Tanks • Underground storage tanks are at least partially below ground • Advantages - protected from fire and mechanical damage • Disadvantage - cannot be visually inspected for leaks • Subject to corrosion • Contain LPG, gasoline or fuel oil

  28. Bulk Storage Facilities • Safety features that can be found at Bulk Storage Facilities: • Tank Spacing • Drainage Control and Diking • Venting Systems • Monitoring and Detection Systems • Fire Protection Systems • Transfer Options

  29. Fixed Facility Haz Mat Incident Management • Review pre-plans while en route • Determine the best approach route and notify other responding units • Establish Command • Conduct safe size-up • Contact site personnel for information

  30. Fixed Facility Haz Mat Incident Management • Determine if a rescue is involved • Isolate the area • Request assistance as needed • Establish control zones • Have responsible party respond • Identify hazards present at the site

  31. Fixed Facility Haz Mat Incident Management • Alert hospitals if necessary • Consider protective actions • Establish the level of PPE • Contain the material using appropriate measures • Decontaminate personnel, victims and equipment • Owner is responsible for clean up

  32. Incidents With Fire Involvement: • Extinguish vs. let it burn • Steam may volatize and spread contaminants • Use foam, dry chemical or carbon dioxide as appropriate • Oxidizers are difficult extinguish

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