What is the acceptable method for marking the location of buried service conductors?

Using a warning ribbon is an accepted method for marking the location of buried service conductors. This method is effective because a warning ribbon can be easily seen above ground and serves as a clear visual indicator of the presence of underground utilities. It typically has standardized colors and markings to communicate specific types of utilities, which helps to prevent accidental damage during excavation or construction activities.

Warning ribbons are usually placed a few inches above the buried conductors to alert anyone digging in the area without needing extensive training or equipment to recognize them. These ribbons are often made of durable materials to withstand environmental conditions, ensuring longevity as they mark the location of the buried service conductors.

Other options, while they might provide some level of indication, are less commonly recognized in utility marking practices. Flags, for instance, can be moved or fall over, which may lead to confusion about the exact location of the buried lines. Soil color markers can be inconsistent and may not convey reliable information about the presence of utilities beneath the surface. Marking with paint, although sometimes used for temporary markings, may not provide the same level of durability or visibility as a warning ribbon, especially over time as weathering affects the paint.