Activities during construction that are hazardous to the health of any protected, heritage or ancestral trees are prohibited, including but not limited to the following:
(A) Physical damage. Any physical damage, including tree topping, trunk damage, or over pruning.
(B) Equipment cleaning and liquid disposal. Cleaning equipment, depositing or allowing harmful liquids to flow overland within the critical root zone. This includes paint, oil, solvents, asphalt, concrete, mortar, tar or similar materials.
(C) Grade changes. Grade changes within the limits of the critical root zone unless adequate construction methods are approved by the City Arborist.
(D) Impervious paving. Paving with impervious materials within the limits of the critical root zone and which may reasonably be expected to kill a tree.
(E) Material storage. Storing materials intended for use in construction or allowing waste materials due to excavation for demolition to accumulate within the limits of the critical root zone.
(F) Tree attachments. Attaching to a tree any signs, wires or other items, other than those of a protective nature.
(G) Vehicular traffic. Vehicular and/or construction equipment traffic, parking or storage within the limits of the critical root zone, other than on pre-existing approved pavement. This restriction does not apply to single incident access within the critical root zone for purposes of clearing underbrush, vehicular access for emergency services, routine utility maintenance, and emergency restoration of utility services or routine mowing activities.
(H) Utility encroachment. Installation of utilities and appurtenances within the critical root zone or crown except where approved by the City Arborist.
(I) Excavation and trenching. Excavation and trenching within the limits of the critical root zone except as approved by the City Arborist.