319.050. The provisions of sections 319.025 and 319.026 shall not apply to any excavation when necessary due to an emergency as defined in section 319.015. An excavation may proceed regarding such emergency, provided all reasonable precautions have been taken to protect the underground facilities. In any such case, the excavator shall give notification, substantially in compliance with section 319.026, as soon as practical, and upon being notified that an emergency exists, each underground facility owner in the area shall, within two hours after receiving such notice, provide markings or contact the excavator with any information immediately available to assist the excavator and shall inform the excavator if not able to mark within the two hours of when the underground facility will be marked at the site of the emergency. The excavator may be liable to the owner or operator for costs directly associated with the locating of any such underground facility relating to a notification of an emergency that does not meet the definition of emergency as stated in section 319.015.