What is the approximate PSI at which VT Gas operates its transmission line?

Vermont Gas operates its transmission lines at approximately 600 PSI. This pressure level is significant because it enables the efficient transportation of natural gas over long distances while maintaining safety and integrity within the pipeline system. Operating at this pressure helps to reduce the volume of gas that needs to be moved and ensures that the gas can reach various distribution points effectively. Understanding the operational pressures is crucial for safety protocols and maintenance of the pipeline systems, ensuring that the infrastructure supports the distribution needs without compromising safety.

The other pressures listed, such as 400, 500, or 700 PSI, do not align with Vermont Gas's operational standards, thereby making them less applicable to the context of the question.