A driver is transporting a bulk quantity of UN1993, Flammable liquids, N.O.S., Class 3, PG II. During transit, the driver notices a minor leak from a valve on the cargo tank, releasing a small amount of liquid. The leak is not immediately dangerous and can be contained. What is the driver's FIRST priority after safely stopping the vehicle?
- APlace warning triangles around the vehicle.
- BReview the Emergency Response Guidebook (ERG) for guidance.
- CImmediately notify the National Response Center (NRC).
- DAttempt to stop the leak if it can be done safely.
Show answer & explanationAnswer & explanation
Correct answer: D. Attempt to stop the leak if it can be done safely.
For a minor leak that is not immediately dangerous and can be safely contained or stopped, the driver's first priority, after safely stopping the vehicle and assessing the situation, is to attempt to stop the leak. This prevents further release and potential hazards. Reporting to the NRC is for significant incidents, and the ERG is for guidance, but immediate safe containment is paramount for a minor leak.
Why the other options are wrong
- A. Placing warning triangles is a critical safety step, but stopping the source of the hazard (the leak) takes precedence if it can be done safely.
- B. Reviewing the ERG is important for guidance but comes after immediate safe actions to control the leak.
- C. NRC notification is for significant incidents; a minor, containable leak might not require immediate NRC notification, but local authorities might still need to be informed.
Minor HazMat Leak Response
For minor, non-immediately dangerous hazardous material leaks that can be safely controlled, the driver's first action, after ensuring safety and stopping, should be to attempt to stop or contain the leak to prevent further release.
- Applies to minor, safely manageable leaks.
- Driver safety is always paramount.
- Goal is to prevent escalation of the incident.
Memory trick: Stop the Drip, Don't Let It Slip, If It's Safe, Do It Quick!