A. Prohibited Acts And Activities: It shall be unlawful for any person to:
1. Store oil, gasoline, chemicals and other materials that might be harmful to the trees near public trees and shrubs.
2. Attach wires, signs and power sources to the trees, unless otherwise authorized by the building official.
3. Dump paint thinner, paint, plaster or other toxic wastes, liquid or solid, on the ground between the base of the tree and the point at which the longest branch terminates, or uphill from any tree where the substance might reach the roots through the leaching process.
4. Expose portions of trees in frequent contact with construction equipment, unless protected by the owner/developer or contractor as directed by the city.
5. Make cuts in the ground near roots of trees, unless appropriate measures are taken to prevent exposed soil from drying out and causing damage to tree roots.
6. Damage roots located on public property by excessive compacting or filling on or around the base of a tree.
B. Root Barriers Required:
1. Root barriers shall be required in the following cases:
a. The installation of curbs, sidewalk or streets less than two feet (2') from an existing tree.
b. During repair of a curb, sidewalk or street that has been damaged or upheaved by roots of a tree or shrub, when such tree or shrub is not removed.
2. Root barriers shall be installed as specified by nursery professionals. If the installation of root barriers involves the removal of roots larger than two inches (2") in diameter, recommendations from nursery professionals will be required. (2003 Code § 11-12-08)