Even though hydrovacs are very popular in Ontario, around the world the most well-known and safest method of digging in the vicinity of underground utilities is with advanced dry suction excavation or dry vacs. The traditional dry vac set up was not set up for North American geography or weather, this is why we sourced and continue to assist in engineering systems that are outfitted for this continent.
This method does not require the use of water which removes a lot of the hazards when working within the proximity of electrical utilities.