In the event of a CNG incident involving a single release, what is the first action to take?

In the event of a CNG incident involving a single release, the first action to take is to seal off the area. This step is crucial because securing the area helps to prevent unauthorized access and ensures that individuals not involved in the response are kept at a safe distance from potential hazards. By sealing off the location, it provides a controlled environment for emergency responders to assess the situation without the interference of bystanders or vehicles.

Taking immediate action to seal off the area also aids in minimizing the risk of ignition, as CNG is flammable and can pose serious safety risks if there are open flames or spark sources nearby. Once the area is secured, it is advisable to subsequently notify local authorities who would then coordinate emergency response efforts. This structured approach allows for an effective and systematic management of the incident.

In contrast, while notifying the Railroad Commission of Texas is a necessary step, it typically comes after immediate safety concerns are addressed. Similarly, evacuating all personnel is an important measure, but it should be done in conjunction with sealing off the area to ensure safety protocols are followed effectively. Therefore, the primary action of sealing off the site is essential for a safe and organized response to any CNG release incident.