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What must be worn by all personnel in the hot zone during a natural gas leak situation?
What must be worn by all personnel in the hot zone during a natural gas leak situation?
What is the primary responsibility of the gas company upon arrival at a natural gas leak scene?
What is the primary responsibility of the gas company upon arrival at a natural gas leak scene?
Which zones should be established around a gas leak?
Which zones should be established around a gas leak?
What is the first action taken upon arrival at a natural gas leak scene?
What is the first action taken upon arrival at a natural gas leak scene?
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What should be done if gas is detected in buildings with suspected leaks?
What should be done if gas is detected in buildings with suspected leaks?
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What does SFD maintain during an uncontrolled natural gas leak?
What does SFD maintain during an uncontrolled natural gas leak?
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What is the role of SFD personnel when it comes to clamping gas lines?
What is the role of SFD personnel when it comes to clamping gas lines?
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What form of protection is mandatory for personnel in the hot zone?
What form of protection is mandatory for personnel in the hot zone?
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What should personnel wear when working in the hot zone of a suspected natural gas leak?
What should personnel wear when working in the hot zone of a suspected natural gas leak?
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What is the primary purpose of this guideline?
What is the primary purpose of this guideline?
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What area should be established around a gas leak according to the guideline?
What area should be established around a gas leak according to the guideline?
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What should be monitored when personnel are working in a known ignitable atmosphere?
What should be monitored when personnel are working in a known ignitable atmosphere?
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What is the minimum gas accumulation percentage that marks the hot zone?
What is the minimum gas accumulation percentage that marks the hot zone?
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What action should be taken immediately upon arrival at a suspected gas leak?
What action should be taken immediately upon arrival at a suspected gas leak?
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What should be done with civilians in the area of a suspected gas leak?
What should be done with civilians in the area of a suspected gas leak?
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When should the Incident Commander consider deploying a charged hose line?
When should the Incident Commander consider deploying a charged hose line?
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What is the primary reason for limiting the number of personnel entering the hot zone?
What is the primary reason for limiting the number of personnel entering the hot zone?
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Which agency maintains command of all uncontrolled natural gas leaks within their territory?
Which agency maintains command of all uncontrolled natural gas leaks within their territory?
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What action is triggered by readings on gas monitors inside a building?
What action is triggered by readings on gas monitors inside a building?
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When gas company personnel arrive at a gas leak scene, what is their primary responsibility?
When gas company personnel arrive at a gas leak scene, what is their primary responsibility?
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What should be done to control potential ignition sources at a gas leak?
What should be done to control potential ignition sources at a gas leak?
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Why is it important to ventilate buildings with gas accumulation?
Why is it important to ventilate buildings with gas accumulation?
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What should personnel movement inside a building with a suspected gas leak be characterized as?
What should personnel movement inside a building with a suspected gas leak be characterized as?
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How should confirmed gas leaks inside a building be managed?
How should confirmed gas leaks inside a building be managed?
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What should fire department personnel do immediately upon arrival at a natural gas leak?
What should fire department personnel do immediately upon arrival at a natural gas leak?
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Which of the following should be established based on initial air monitoring at a gas leak site?
Which of the following should be established based on initial air monitoring at a gas leak site?
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How should fire department personnel handle a cut gas line?
How should fire department personnel handle a cut gas line?
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What action should NOT be taken regarding soil and a cut gas line?
What action should NOT be taken regarding soil and a cut gas line?
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When a gas leak is confirmed near a building, which areas should be monitored?
When a gas leak is confirmed near a building, which areas should be monitored?
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What should be requested for traffic control when a cut gas line may cause road closures?
What should be requested for traffic control when a cut gas line may cause road closures?
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In dry conditions with visibly cracked soil, what should be done regarding a leaking underground gas line?
In dry conditions with visibly cracked soil, what should be done regarding a leaking underground gas line?
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Who should arrive at the scene if a natural gas leak is confirmed?
Who should arrive at the scene if a natural gas leak is confirmed?
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Who is the highest-ranking officer listed for contact regarding questions or comments on the SOG?
Who is the highest-ranking officer listed for contact regarding questions or comments on the SOG?
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What is the purpose of the policy regarding natural gas leak operations as specified?
What is the purpose of the policy regarding natural gas leak operations as specified?
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What is the review date specified for the SOG?
What is the review date specified for the SOG?
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What should be done if an error or inconsistency is spotted in the policy?
What should be done if an error or inconsistency is spotted in the policy?
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What is the effective date of the SOG?
What is the effective date of the SOG?
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Which officer is directly under the District Chief in the hierarchy?
Which officer is directly under the District Chief in the hierarchy?
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What does a violation of the policy primarily result in, according to the guidelines?
What does a violation of the policy primarily result in, according to the guidelines?
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What does the first edition of this document reference?
What does the first edition of this document reference?
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Study Notes
Natural Gas Leak Operations
- All personnel must comply with this guideline when operating on a gas leak incident.
- This guideline applies to all members of Spring Fire Department and Harris County ESD No. 7.
- Immediately upon arrival at a suspected gas leak, conduct air monitoring and wear SCBA.
- Establish a hot zone, warm zone, and cold zone around any gas leak, with a hot zone being defined as any area with a gas accumulation of 10% LEL or greater.
- Evacuate all civilians from the hazardous area.
- When the gas company arrives on scene, they will assume responsibility for controlling the leak.
- Never attempt to switch gas-powered equipment back into service, including extinguished pilot lights.
- SFD personnel will not clamp gas lines.
- In the event a gas line is cut, immediately begin air monitoring to determine the area affected and the potential hazards to life and property.
- Do not place soil on top of a cut gas line as this can facilitate the underground travel of gas.
- When an underground gas line is leaking, the area should be continually monitored, especially cracks in dry soil, allowing gas to travel large distances through fissures.
- When a gas leak involves possible road closures, request law enforcement for traffic control.
- All entries into buildings with suspected gas leaks should involve the minimum number of personnel necessary to size up the situation and provide continuous air monitoring.
- Any readings on gas monitors inside a building should trigger an immediate evacuation of the building.
- Potential ignition sources, such as electrical service, should be controlled/isolated from a safe distance if the leak cannot be immediately controlled.
- Buildings with gas accumulation should be ventilated using natural ventilation.
- Positive pressure ventilation can be used assisting with ventilation, however, it should be operated in a monitored and safe location.
Responsibilities
- Spring Fire Department maintains command of all uncontrolled natural gas leaks within its territory.
- The Incident Commander should consider deploying a charged hose line based on ignition hazards.
- Only the minimally required number of personnel should enter the hot zone in order to size up the situation, determine the source of the leak, and isolate the leak if possible.
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Description
This quiz covers essential guidelines for personnel responding to gas leak incidents, specifically tailored for the Spring Fire Department and Harris County ESD No. 7. It emphasizes the importance of air monitoring, establishing hazardous zones, and the roles of both emergency responders and gas companies in managing such situations.
