ORD 1470 - Laserfiche WebLink

5. The applicant shall submit a heritage tree plan subject to the approval of the Design Review Board prior to recordation of the final map. The tree plan shall identify all heritage trees on the developable portion of the site, shall address protection measures during grading and construction, and shall address replacement of trees which must be removed. The plan shall include detailed measures to protect trees, including protec- tive fencing approximately 5 feet outside of the leaf canopy edge of a tree or grove wherever grading or construction occurs within 50 feet of a heritage tree, restrictions on irrigation within driplines, and avoidance of lawns or other incompatible plant materials in sensitive areas. In addition, all lots which have downhill slopes adjacent to heritage trees shall have a curb-type drain system or equivalent installed along the length of the lot line adjacent to such trees. No grading or soil compaction shall occur within 4 feet of the leaf canopy edge of a tree, and the edge shall be completely encircled with a strip of 20 gauge aluminum flashing buried 12 inches deep to shunt runoff water from the root zone. The applicant shall plant coast live oak, valley oak, Cali- fornia laurel, and California buckeye trees on the site at a 6 to 1 replacement ratio for each of the 25 heritage trees re- moved, in a mix ranging from seedling to specimen size (24 inch box). The location and arrangement of such trees shall be subject to the approval of the Design Review Board. The tree plan, replacement planting, and follow-up care shall be handled by an established horticultural firm which specializes in the reforestation of Bay Area woodland sites, in consultation with a wildlife biologist. The plan shall include a set of strin- gent rules regarding the use of herbicides, and enforcement of such rules shall be the responsibility of the homeowners asso- ciation. 6. The applicant shall submit a final landscape plan for approval of the Design Review Board prior to recordation of the final map. The final landscape plan shall incorporate the recommen- dations and mitigations of the tree plan and shall also include the following: a. A detailed re-vegetation plan shall be prepared for all cut banks, giving particular attention to a program to ensure successful replanting and maintenance over time. Disturbed slopes to remain in open space shall be planted with native trees and compatible vegetation, in a pattern similar to existing site conditions. Careful landscape treatment shall be used to minimize abrupt contrast be- tween irrigated areas and natural open space, including planting in irregular rather than geometric patterns. Hydroseed mix shall be used in all sloped areas within daylight lines. b. The applicant shall use plantings and irrigation systems to provide maximum water conservation benefits, with an emphasis placed on drought-tolerant native plants. Rev. 6/19/90 -12-