Laserfiche WebLink
<br />11 <br /> <br />Activities prohibited within the Tree Protection Zone include: <br />1. Parking vehicles or equipment, storage of building materials, refuse, or excavated soils, <br />or dumping poisonous material on or around trees and roots. Poisonous materials include, <br />but are not limited to paint, petroleum products, concrete, stucco mix, dirty water or any <br />material that may be harmful to tree health. <br />2. The use of tree trunks as a backstop, winch support, anchorage, as a temporary power <br />pole, signpost or other similar function. <br />3. Cutting of tree roots by utility trenching, foundation digging, placement of curbs and <br />trenches, or other miscellaneous excavations without prior approval of the Certified <br />Arborist. <br />4. Soil disturbance or grade change. <br />5. Drainage changes. <br /> <br />Verification of Tree Protection <br />The project contractor shall verify in writing that all pre-construction tree preservation conditions <br />have been met as follows: <br /> <br />1. Tree fencing installed <br />2. Erosion control secured <br />3. Tree pruning completed <br />4. Soil Compaction preventive measures installed <br />5. Tree maintenance schedule established, and the responsible party designated <br />6. Tree Protection Zone (TPZ) <br /> <br />The Project Manager, the City Arborist, City’s construction inspector, and the contractor must sign <br />this verification. <br /> <br />C. Activities During Construction and Demolition Near Trees <br />Soil disturbance or other damaging activities within the TPZ is prohibited unless approved by the <br />Certified Arborist and mitigation for specific injuries is implemented. No encroachment within 5 <br />feet of a trunk will be permitted under any circumstances. <br /> <br />Trenching, Excavation and Equipment Use <br />Trenching, excavation or boring within the TPZ shall be limited to activities approved by the <br />Certified Arborist or either the Director of Engineering Services, Director of Public Works, the <br />Director of Parks and Recreation, or Director of Planning and Building. Explore alternatives for <br />trenching outside the root zone. Avoid exposing roots during hot, dry weather. Backfill trenches as <br />soon as possible with soil and soak with water the same day. Small roots can die in 10 to 15 <br />minutes and large roots may not survive an hour of exposure. If the trench must be left open all <br />roots must be kept moist by wrapping them in peat moss and burlap. <br />Section 4: Protection of Trees <br />During Construction (continued)