Hydrovacing is the safest method of excavation that allows exposure of pipelines and any other underground facilities. It is the initial stage when drilling or digging for construction or pipeline trenching. Hydrovac excavation is performed using highly pressurized water, heated if the ground is frozen, and a hand-held wand to penetrate the soil. The resulting slurry, a mix of the ground material and water, is then vacuumed using the powerful vacuum system mounted on the unit. The debris is deposited securely in the debris tank and safely removed from the site.