Which of the following describes a Non-Community Water System?

A Non-Community Water System specifically describes a water supply system that serves water to the public but not to a permanent residential population. The key characteristic of this type of system is its service to transient populations, such as those found in hotels, campgrounds, and similar facilities, where people stay for only short periods. This is why the description of serving transient populations accurately identifies a Non-Community Water System.

In contrast, the other options focus on aspects that do not align with the fundamental definition of a Non-Community Water System. Describing it as designed for long-term residents does not reflect its transient nature, while claiming that it only serves agricultural areas overlooks its focus on serving the public in transient settings. Similarly, handling underground water resources is a general function that can apply to various water systems, not specifically defining a Non-Community Water System. Overall, the correct answer captures the essence of what distinguishes Non-Community Water Systems from others.