Vt. Stat. Ann. tit. 30, § 7007

When any underground utility facility is damaged during excavation activities, the excavator shall immediately notify the affected company. Under no circumstances shall the excavator backfill or conceal the damaged area until the company inspects and repairs the damage, provided that the excavator shall take reasonable and prudent actions to protect the public from serious injury from the damaged facilities until the company or emergency response personnel arrive at the damaged area. An excavator who causes damage to a pipeline that results in a release of natural or other gas or hazardous liquid shall promptly report the release to emergency responders by calling 911.