An Activity and Use Limitation (AUL) cannot be used to limit the activities and exposures of utility workers conducting emergency excavation and repair of existing subsurface utilities. If the property has a utility line or easement, then at a minimum that area of the site must be cleaned up to a level that poses No Significant Risk for emergency excavation and repair of existing subsurface utilities by workers without personal protective equipment.

310 CMR 40.1074(2)(h): Contents of a Notice of an Activity and Use Limitation