Hazard

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Hazard Risk Assessment
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Where are we?

• 1 Introduction
• 2 Awareness Review
• 3 Surveying the HazMat Incident
• 4 Hazard Risk Assessment
• 5 Intro to Incident Command
• 6 Protective Clothing Equipment
• 7 Hazardous Materials Control
• 8 Decontamination
• 9 Termination Procedures
• 10 Safety
• 11 Conclusion

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Hazard Risk AssessmentOverview

• In the Awareness class you should have developed
  skills in detecting identifying hazardous
  materials, as well as in conducting a basic
  hazard assessment using the Emergency Response
  Guidebook

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Hazard Risk AssessmentOverview

• In this module we will continue examining methods
  for identifying chemicals and determining the
  dangers involved

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Hazard Risk AssessmentOverview

• CHEMTREC
• Emergency Response Guidebook
• Terminology
• Material safety data sheets
• EPA pesticide labels
• Other sources
• Special Incident Hazards

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Hazard Risk Assessment

• CHEMTREC
• is an acronym for the Chemical Transportation
  Emergency Center in Washington, DC, a public
  service of the Chemical Manufacturers Association

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Hazard Risk AssessmentCANUTEC SETIQ

• In Canada the equivalent of CHEMTREC is called
  CANUTEC
• In Mexico, the equivalent is SETIQ
• The phone numbers for both agencies are located
  in the Emergency Response Guidebook

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[phone]
FUNCTION

• 24-hour availability by phone with data on
  2,800,000 chemicals
• Contacts shipper or manufacturer to advise them
  of spill or release

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FUNCTION

• notifies National Response Center (NRC) of
  significant incidents
• can phone-link HazMat Teams with several
  different chemical experts send hard copy via
  computer or fax

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Information CHEMTREC needs

• Your name, call back number, fax number
• Location and nature of the problem
• Name and identification number of the
  material(s) involved
• Shipper/consignee/point of origin

Carrier name, railcar or truck
number Container type and size Quantity of
material transported/released Local conditions
(weather, terrain, proximity to schools,
hospitals, etc) Injuries and exposures Local
emergency services that have been notified
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Hazard Risk Assessment

• Try to keep a phone line connected to CHEMTREC
• CHEMTREC is continuously staffed and can provide
  a teleconferencing bridge to connect experts to
  your phone line as necessary

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ERG

• The primary purpose of the Emergency Response
  Guidebook is to provide guidelines for initial
  action

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ERG

• The Guidebook should not be considered as a
  substitute for emergency response training,
  knowledge or sound judgment

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ERG

• In the HazMat Awareness course students were
  introduced to basic concepts as identified in the
  Emergency Response Guidebook

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ERG

• At the Operations level these same concepts must
  be evaluated from the context of defensive
  operations that would be implemented in response
  to HazMat incidents

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ERG

• Please turn to
• Guide 117

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Emergency Response Fire Guide 117

• Do not extinguish a leaking gas fire unless the
  leak can be stopped

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Emergency Response Small Fires (Guide 117)
Dry chemical, CO2, water spray, fog or standard
regular foam
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Emergency Response Large Fires (Guide 117)

• Move the container from the fire area if you can
  do it without risk

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Emergency Response Large Fires (Guide 117)

• Damaged cylinders should be handled only by
  specialists

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Fire Involving TanksGuide 117

• Fight fire from maximum distance or use unmanned
  hose holders or monitor nozzles

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Fire Involving TanksGuide 117

• Cool containers with flooding quantities of water
  until well after fire is out

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Fire Involving Tanks

• Water should be directed above the point of flame
  impingement and allowed to flow downward

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Fire Involving Tanks

• This will allow the water to cool the entire tank
  before evaporating

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Fire Involving Tanks General Decision Criteria

• Emergency responders must
• know how long the flame impingement has been
  occurring prior to arrival
• have an excellent, sustainable water supply
• have adequate resources available to act within
  a very short time

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Fire Involving Tanks General Decision Criteria

• This concept requires enough personnel to
  position these cooling streams within the first
  five to ten minutes
• If you do not have sufficient resources to
  properly conduct this type of operation,
  personnel should withdraw immediately 1,000 feet
  or more

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Fire Involving TanksGuide 117

• Do not direct water at source of leak or safety
  devices icing may occur

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Fire Involving TanksGuide 117

• Withdraw immediately in case of rising sound from
  venting safety devices or discoloration of tank

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Fire Involving TanksGuide 117

• Always stay away from the ends of tanks

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Spill or LeakGuide 117

• eliminate all ignition sources
• all equipment used when handling the product must
  be grounded

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Spill or LeakGuide 117

• Fully encapsulating, vapor protective clothing
  should be worn for spills and leaks with no fire

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Spill or LeakGuide 117

• Do not touch or walk through spilled material
• Stop leak if you can do it without risk

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Spill or LeakGuide 117

• Use water spray to reduce vapors or divert vapor
  cloud drift
• Do not direct water at spill or source of leak
• If possible, turn leaking containers so that gas
  escapes rather than liquid

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Spill or LeakGuide 117

• Prevent entry into waterways, sewers, basements
  or confined areas
• Isolate the area until the gas has dispersed
• Consider igniting spill or leak to eliminate
  toxic gas concerns