Underground power lines, natural gas pipelines, and other utilities run under streets and sidewalks as well as under yards and homes. Accidentally digging into these lines could disrupt utility service in the neighborhood. Even minor damage to a gas pipeline or its coating (such as a gouge, scrape, or dent) could harm the integrity of the pipeline and cause a future break or leak. And accidentally digging into underground power lines could cause an electrical shock hazard and disrupt electrical service in the neighborhood. Damage could even result in electrocution.