No. No notice is required. It’s their easement which gives them access and the ability to install and maintain their utilities. Aside from nuisance ordinance restrictions, they can dig whenever and however they would like within the easement area. Utility companies are also not responsible to cleanup or repair any damage done while working in an easement. This is a big reason why we require people to get permission from easement holders before building anything in an easement area. Companies usually clean up and repair any impacts they create but they are not legally required to do so. That’s a big reason why the easements exist.