1150.06 TREE PROTECTION.
   (a)   Methods to be implemented for any trees which are required on site:
      (1)   All trees or groups of trees to be preserved shall be marked with a blue colored ribbon or paint stripe prior to any clearing.
      (2)   Prior to any construction or grading, protective barrier such as a rope or fence shall be placed around the perimeter of the drip line of the trees to be preserved. Such barrier shall be visible enough to be seen easily by equipment operators.
      (3)   No building material, equipment, vehicles or chemicals shall be stored or placed in the protection area of the drip line.
      (4)   Surface grade shall not be changed more than six inches within the protected areas without the installation aeration system, wells or retaining walls.
      (5)   No wires, boards, nails, signs, fences or other attachment shall be made to a tree to be preserved.
   (b)   Excavations. Excavations for utility pipelines shall be routed within the drip line of a tree to be preserved only in the judgment of the City:
      (1)   No other route for the lines bypassing the root area is practical.
   (c)   Root Protection. Parties excavating within the root areas shall:
      (1)   Minimize the number of roots cut, especially large main roots;
      (2)   Cleanly cut with proper tools such roots as must be cut;
      (3)   Backfill the trench as soon after excavation as possible to minimize the time roots are exposed to the air and leave no pockets of air when backfilling;
      (4)   Mix peat moss with fill soil to promote new growth.
         (Ord. 29-1999. Passed 10-12-99.)