Hazardous Materials Control

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Hazardous Materials Control
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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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Hazardous Materials ControlPurpose

• Emergency responders must know how to use
  techniques to minimize or prevent harm to life,
  environment, or property

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Hazardous Materials ControlOutcome Considerations

• How to handle spills properly
• Where spills can occur
• Inappropriate control measures

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Hazardous Materials ControlOverview

• A. Goals Objectives of Spill Control
• B. Steps in Spill/Leak Response
• C. Control Methods
• 1. Containment
• 2. Confinement

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The Goal of Hazardous Materials Control

• To prevent or minimize environmental damage

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• The goal of preventing environmental damage is
  second only to saving lives

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Control Objectives

• To prevent the (further) release of a hazardous
  material
• To restrict the spread of a hazardous material
  that has already been released

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Steps in Spill or Leak Response

• 1. Identify the material and its associated
  hazards
• 2. Use proper protective clothing and equipment
• 3. Stop the flow at the source (containment)
• 4. Confine spilled material to the immediate area
  (confinement)
• 5. Recover spilled material (utilizing a
  professional clean-up company)

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Control Methods
Offensive Technician Level
Defensive Operations Level

• Containment Control the flow at the source

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Defensive Control Operations Level

• Containment Stopping the flow at the source
  without approaching the actual point of the
  release e.g., defensive closing of valves

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Offensive Control Technician Level

• Containment Stopping the flow by approach-ing
  the point of the release to plug, patch, or
  otherwise stop the release (offensive)

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Legal Considerations

• OSHA First Responder Operations those who
  respond in a defensive fashion without actually
  trying to stop the release

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Legal Considerations

• OSHA HazMat Technician those who respond in
  order to plug, patch, or otherwise stop the
  release

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Control Methods

• Confinement Confine already spilled material to
  the immediate area

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Solids
Control Methods Confinement

• Containerizing
• Covering

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Containerizing Placing spilled solid material
into a compatible container
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Covering Placing a compatible cover over
spilled material to prevent vapor or particle
movement due to wind or exposure to moisture
(rain)
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Liquids
Control Methods Confinement

• Retaining
• Diking
• Absorption
• Dams
• Remote valve shutoff
• Covering

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Retaining Catch a liquid spilling or leaking
from an elevated source
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Diking Stop, slow, redirect flowing liquid
Soil
Booms
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Diking Protect storm drains
Primary Booms
Secondary Pads
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Absorption

• Sorbent materials include
• sand diatomaceous earth
• soil sawdust
• vermiculite absorbent clay
• imbibing materials (mats, pads, pillows, beads,
  etc)

Sorbent must be compatible with chemical !!
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Absorption Collecting spilled liquids
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Dams a barrier built to stop flowing water or
material

• Simple dam
• Complex dam
• - overflow dam
• - underflow dam

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Simple Dam
water (or contaminant)
dam
Direction of flow
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Complex (overflow) Dam
water
dam
heavier-than-water contaminant
Direction of flow
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Complex (underflow) Dam
Direction of flow
lighter-than-water contaminant
water
dam
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Remote valve shut-off Stopping the flow of
materials at a distance
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Covering Minimizing vaporization
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Liquids Dilution
Control Methods

• Positive aspects
• Negative aspects

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Gases vapors
Control Methods

• Closing doors windows
• Dispersion

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Review Goals Objectives
The Goal of Hazardous Materials Control

• To prevent or minimize environmental damage

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Review Steps in Spill or Leak Response

• 1. Identify the material and its associated
  hazards
• 2. Use proper protective clothing and equipment
• 3. Stop the flow at the source (containment)
• 4. Confine spilled material to the immediate area
  (confinement)
• 5. Recover spilled material (utilizing a
  professional clean-up company)

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Review Control Methods

• 1. Containment
• 2. Confinement

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Summary
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Application Step