CHMM Emergency Response and Recovery 4 — Questions and Answers
Question 1: The Incident Command System (ICS) Finance/Administration Section is typically activated when:
- The incident spans multiple operational periods requiring cost tracking (Correct answer)
- Federal agencies are involved in the response
- Hazardous materials specialists are on scene
- The incident involves more than 50 responders
Correct answer: The incident spans multiple operational periods requiring cost tracking
Finance/Administration is activated when an incident requires tracking costs across multiple operational periods or has significant financial implications.
Question 2: Under CERCLA Section 103, what is the minimum threshold that triggers an immediate notification requirement to the National Response Center for a hazardous substance release?
- Any detectable amount above background
- The Reportable Quantity (RQ) for that specific substance (Correct answer)
- 1 pound regardless of substance
- Any amount that crosses a property boundary
Correct answer: The Reportable Quantity (RQ) for that specific substance
CERCLA requires immediate NRC notification when a release equals or exceeds the Reportable Quantity (RQ) established for that specific hazardous substance.
Question 3: During a large-scale hazmat incident, the CHEMTREC (Chemical Transportation Emergency Center) 24-hour hotline primarily provides:
- Regulatory compliance guidance and permit information
- Technical emergency response assistance and product hazard information (Correct answer)
- Real-time weather forecasting for plume modeling
- Legal counsel for liability determination
Correct answer: Technical emergency response assistance and product hazard information
CHEMTREC provides 24/7 technical emergency response guidance and connects callers with chemical manufacturers and safety specialists.
Question 4: Which recovery consideration is most critical in the immediate aftermath of a hazmat spill involving water-reactive materials?
- Confirming insurance coverage before cleanup begins
- Ensuring no water is used in decontamination or cleanup operations (Correct answer)
- Activating mutual aid agreements with neighboring jurisdictions
- Notifying shareholders of potential financial liability
Correct answer: Ensuring no water is used in decontamination or cleanup operations
Water-reactive substances can produce toxic gases, fires, or explosions when contacted with water, making water exclusion critical during cleanup.
Question 5: What does IDLH stand for, and what is its significance in hazmat emergency response?
- Immediately Dangerous to Life or Health — the concentration requiring immediate evacuation (Correct answer)
- Initial Decontamination Level Hazard — the threshold for decon operations
- Integrated Dose Limit for Hazmat — the cumulative exposure limit
- Incident Dispatch Logistics Hierarchy — the command structure trigger
Correct answer: Immediately Dangerous to Life or Health — the concentration requiring immediate evacuation
IDLH (Immediately Dangerous to Life or Health) is the maximum concentration from which one could escape within 30 minutes without irreversible health effects.
Question 6: In a hazmat incident involving a flammable gas leak, which action takes highest priority before other response activities?
- Notifying regulatory agencies of the release
- Eliminating ignition sources and establishing a hot zone perimeter (Correct answer)
- Conducting air monitoring for toxic byproducts
- Preparing a preliminary cost estimate for cleanup
Correct answer: Eliminating ignition sources and establishing a hot zone perimeter
Eliminating ignition sources and establishing a safety perimeter to prevent fire or explosion takes top priority with flammable gas releases.
Question 7: The term 'secondary contamination' in hazmat response refers to:
- A second chemical release that occurs after the initial spill
- Transfer of contaminants from victims or equipment to previously uncontaminated persons or areas (Correct answer)
- Contamination that occurs below ground level from a surface spill
- Chemical reactions that produce new hazardous byproducts during cleanup
Correct answer: Transfer of contaminants from victims or equipment to previously uncontaminated persons or areas
Secondary contamination occurs when a contaminated person, object, or substance spreads contamination to previously clean responders, patients, or areas.
CHMM Emergency Response and Recovery 4
The Incident Command System (ICS) Finance/Administration Section is typically activated when: