In the color code system, blue is used to represent which utility?

In the color code system used for marking underground utilities, blue is specifically designated to represent water lines. This is critical for safety and planning when digging or performing excavation work. Knowing the color codes helps prevent accidental damage to essential services and ensures compliance with regulations regarding utility identification. This coloring system is standardized to facilitate quick recognition, thereby reducing the risk of utility outages, service interruptions, or dangerous situations during construction or maintenance activities.

The other utilities have their own designated colors, such as green for sewer and yellow for gas, which helps workers and contractors accurately identify the type of utility they are dealing with. Therefore, recognizing that blue signifies water assists in maintaining safe working practices in utility management and construction.