What is the first step to take before starting any excavation work?

The first step before starting any excavation work is to contact local utility companies. This is crucial because underground utility lines, such as water, gas, electric, and telecommunications, may be present in the area where excavation is planned. By contacting utility companies, one can arrange for the location of these lines to be marked, ensuring the safety of workers and preventing damage to the infrastructure.

Identifying and understanding the presence of these utilities is essential to avoid costly interruptions and potential hazards, such as utility strikes, which can lead to severe accidents or disastrous project delays. This preliminary step helps create a safer work environment and facilitates adherence to regulations that protect workers and the public.

The other options, while important in the construction process, are not the immediate first step. Obtaining a building permit, surveying the land, or clearing the site come after ensuring that any underground utilities are identified and accounted for, as these actions may be influenced by the presence and location of the utilities.