480.9  Liability for owner of farmland.
  An owner of farmland used in a farm operation, as defined in section 352.2, who complies with the requirements of this chapter shall not be held responsible for any damages to an underground facility, including fiber optic cable, if the damage occurred on the farmland in the normal course of the farm operation, unless the owner intentionally damaged the underground facility or acted with wanton disregard or recklessness in causing the damage to the underground facility. For purposes of this section, an “owner” includes a family member, employee, or tenant of the owner.
95 Acts, ch 192, §59