Hydro-excavating
Hydro-excavating is the science of “digging with water”. HM Environmental Services “Hydro-Excavating” division utilizes self contained units that force 2000-3000 PSI water through a steel lance with small stationary or rotating nozzles. The resulting water slurry, and soil are vacuumed through and eight inch tube into our debris tank for disposal.
The technology provides a non-destructive means to safely locate utilities and precisely excavate an area.
This form of excavating is particularly useful for locating underground process piping without the use of traditional excavating equipment. Compared to mechanical excavation, our vacuum excavator(s) dramatically reduce the likelihood of striking or damaging existing installations.
Non-destructive excavation methods are gaining popularity with underground utility companies, municipalities and other subsurface mechanical contractors.

