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8 <br /> <br /> 5. Ail tree fencing barriers must be installed prior to and maintained throughout <br />building construction and should not be removed until completion of consumction and until <br />all landscapihg is installed. <br /> <br />C. Encroachment. Most trees can tolerate only a small percentage of critical root zone <br />loss. If encroachment is anticipated within the critical root zones of specimen trees, stands <br />of trees, or otherwise designated tree protective zones, the following preventive measures <br />shall be employed: <br /> 1. : Clearing Activities: Roots often fuse and tangle amongst trees. The <br />removal of t:?ees adjacent to tree save areas can cause inadvertent damage to the protected <br />trees. Wherever possible, it is advisable to cut minimum two (2') foot trenches (e.g., with <br />a "ditch-wit~h") along the limits of land disturbances, so as to cut, rather than tear, roots. <br />Directional felling of trees outward from disturbance areas and grinding stumps is also <br />acceptable. <br /> 2. It is very strongly suggested that all clearing in oak stands be done before <br />May 1st and after July 1st of each season. This well help to keep the inadvertent wounding <br />of trees with;the consequential spread of oak wilt. However, if clearing has to be done at <br />this time, ali stumps and wounded trees shall have nontoxic wound dressings applied. <br />Should oak wilt disease become established as a result of the construction during the <br />months of May and June, then the developer/builder shall pay for all additional oak wilt <br />control measures needed to conu'ol the disease resulting from the activity. <br /> 3. i Where the City Forester/Tree Inspector has determined that irreparable <br />damage has !occurred to trees within tree protective zones, they must be removed and <br />replaced by the developer/builder as defined in Section IV(B)9. <br /> <br />D. Recl ~arnation of the Growing Site. A tree's ability for adequate root development, <br />and ultimately its chances for survival are improved with reclamation of the growing site. <br />Whenever p~ssible, the soil shall be brought back to its natural grade. Unnecessary fill, <br />erosion sedi~nentation, concrete washout, and construction debris should be removed. <br />When machinery is required for site improvement, it is strongly recommended that a <br />"bobcat" or similar light weight rubber tire vehicletbe used so as to minimize soil <br />compaction. = <br /> <br /> <br />