HMT 1C 24-1 u Chapter 24 –Fixed Facility Incident Consideration Haz Mat Incident Considerations

HMT 1C 24-2 Fixed Facility Incident Consideration u 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

HMT 1C 24-3 Codes, Ordinances and Regulations u The Uniform Fire Code u Uniform Building Code u NFPA Hazard identification system

HMT 1C 24-4 Codes, Ordinances and Regulations u Health and Safety Code u Locally adopted ordinances u SARA, Title III –Emergency planning, community right to know and emergency notification

HMT 1C 24-5 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

HMT 1C 24-6 Pre-Plan u Identify potential exposure problems u Identify potential avenues of spread u Determine local capabilities and resources

HMT 1C 24-7 The Pre-Planning Process u Identify target hazards u Compile information on target hazards

HMT 1C 24-8 Sources of information include: u Building permits u Inspection reports u Hazardous materials permits u Past incident reports u Hazardous Materials Management Plan

HMT 1C 24-9 Hazardous Materials Management Plans (HMMPs) u Developed and maintained by personnel at the fixed facility u Must be given to the agency having emergency response authority u Required

HMT 1C 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

HMT 1C Pre-Plans u A pre-plan usually consists of two parts: –Quick access information –Plot plan u Pre-plans should be set up in a standard format for all fixed facilities –exercise the plan

HMT 1C Fixed Facility Systems u Containers and tanks u Piping, valves and fittings u Signage u Security u Ignition sources u Shelf storage u Spill control, drainage and containment u Ventilation

HMT 1C Fixed Facility Systems u Separation from incompatible hazardous materials u Hazardous materials storage cabinets u Fire extinguishing systems u Explosion venting or suppression u Standby power u Limit controls u Manual alarm

HMT 1C Fixed Facility Systems u Supervision u Emergency vehicle access u Toxic gas storage u Gas detection u Local gas shut off u Automatic shut off u Enunciator panel

HMT 1C Fixed Facility Containers

HMT 1C Fixed Facility Containers u Non-bulk containers u Intermediate bulk containers u Fixed storage tanks –Underground tanks –Above ground tanks

HMT 1C Hazardous Materials Storage Tank Regulations u Uniform Building Code (UBC) u Uniform Fire Code (UFC) u Occupational Safety and Health Administration (OSHA) u Locally adopted Hazardous Materials Storage Ordinances (HMSO)

HMT 1C Vertical Atmospheric Fixed Roof Tanks

HMT 1C Vertical Atmospheric Fixed Roof Tanks u Wider then they are tall u Fat roof or an inverted cone shaped roof u May be designed with weak roof-to-shell attachments u Usually contain flammable, combustible and corrosive liquids

HMT 1C Floating-Roof Tanks u Very large tanks u Roofs float on liquid inside –limits the vapor space u Designed for flammable and combustible liquids that readily vaporize

HMT 1C Covered Floating-Roof Tanks u Fixed roof with a inner floating roof u Can be identified by large vent openings around the top of the tank u Designed to contain flammable and combustible liquids

HMT 1C Vertical Low Pressure Fixed- Roof Tanks u Taller than they are wide u Dome top –designed to accommodates changes in vapor pressure u Operate at pressures up to 15 psig u Used for flammable and combustible liquids and other types of haz mats

HMT 1C Horizontal Above Ground Low Pressure Storage Tanks u Above ground tanks that lay horizontally u Potential problems include: –possible failure of supports during a fire –possible inadequate venting u Generally contain gasoline, naphtha or fuel oil

HMT 1C Pressure Horizontal Tank u Cylindrical with rounded ends u Usually mounted horizontally on concrete foundation walls or legs u Generally painted white or another highly reflective color u Contain liquefied gases u May have built-in protection systems

HMT 1C Spherical Tanks u Ball-like shape u Contain high pressure gases u Painted white or other reflective color u Pressure relief valve at the top –No pressure relief valve may indicate cryogenic liquids

HMT 1C Cryogenic Liquid Tanks u Taller than they are wide, and have domed tops u Rest on legs rather than directly on the ground u Store cryogenic liquids

HMT 1C Underground Storage Tanks u Underground storage tanks are at least partially below ground u Advantages - protected from fire and mechanical damage u Disadvantage - cannot be visually inspected for leaks u Subject to corrosion u Contain LPG, gasoline or fuel oil

HMT 1C Bulk Storage Facilities u 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

HMT 1C Fixed Facility Haz Mat Incident Management u Review pre-plans while en route u Determine the best approach route and notify other responding units u Establish Command u Conduct safe size-up u Contact site personnel for information

HMT 1C Fixed Facility Haz Mat Incident Management u Determine if a rescue is involved u Isolate the area u Request assistance as needed u Establish control zones u Have responsible party respond u Identify hazards present at the site

HMT 1C Fixed Facility Haz Mat Incident Management u Alert hospitals if necessary u Consider protective actions u Establish the level of PPE u Contain the material using appropriate measures u Decontaminate personnel, victims and equipment u Owner is responsible for clean up

HMT 1C Incidents With Fire Involvement: u Extinguish vs. let it burn u Steam may volatize and spread contaminants u Use foam, dry chemical or carbon dioxide as appropriate u Oxidizers are difficult extinguish