It is found and determined that digging, trenching and excavation at the Marina Municipal Airport is potentially dangerous because it is believed that there may be underground utilities which are either not recorded on available maps or are not locatable through the normal process of contacting Underground Service Alert (“USA”). It is further found and determined that such digging, trenching and excavation could create a hazard to the health, safety and general welfare. (Ord. 2001-01 § 1, 2001)