What does the color blue signify in utility markings?

The color blue is specifically used in utility markings to indicate water lines. This standard helps ensure safety and efficiency in construction or excavation activities by providing clear visual cues to workers about the types of utilities present in a specific area. When individuals see blue markings, they know they should exercise caution to avoid damaging water pipelines during digging or other subsurface work. This color coding system is part of a broader initiative to reduce accidents and facilitate communication among various utility companies and contractors, promoting a safer work environment.