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City of Pleasanton
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CITY CLERK
CITY CLERK - TYPE
AGENDA REPORT
DOCUMENT DATE
1/5/2016
DESTRUCT DATE
15Y
DOCUMENT NO
01
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is Encourage natural regeneration of native oaks (including blue oaks, valley oaks and coast live <br /> oaks) within undeveloped portions of the project site; <br /> ▪ Reduce fire hazards during the dry season; and <br /> ® Restrict livestock grazing. <br /> The oak woodland management plan would address tree replacement requirements as stipulated through <br /> City consultation with the CDFW for the project. Presently, the CDFW generally specifies a replacement <br /> ratio of 3:1 for the replacement of native oaks, regardless of the lost trees' positions relative to the <br /> riparian zone. The management plan should include restrictions on livestock grazing to ensure natural <br /> regeneration of oaks within the open space areas. <br /> Mitigation Measure 4.3-1b: The relevant provisions of the City of Pleasanton's Tree Ordinance, <br /> including acquisition of a tree removal permit (Section 17.16.020), reporting requirements for new <br /> property development (Section 17.16.050) and protection of existing trees (Section 17.16.070) shall be <br /> implemented. The Oak Woodland Restoration and Management Plan discussed above shall indicate the <br /> ratio, location, species, source of plant material and timing for planting. It shall also describe plans for <br /> maintenance and irrigation. Heritage trees should be replaced at a ratio consistent with the City's tree <br /> ordinance with small nursery stock. These ratios shall compensate for habitat values lost from the removal <br /> of mature trees. Planting time between November and January is recommended. To preserve the genetic <br /> integrity of trees of the site, acorns and seeds to be propagated should be collected on-site. A minimum <br /> maintenance and irrigation time of three years is recommended. <br /> In order to optimize tree preservation on-site, the following measures formulated by HortScience shall be <br /> implemented to protect trees that are proposed to be retained: <br /> Design Recommendations <br /> 1. Verity the location and tag numbers of all trees within 25 feet of the proposed construction areas <br /> 2. Allow the Consulting Arborist to review all future project submittals including grading, utility, <br /> drainage, irrigation, and landscape plans. <br /> 3. Prepare a site work plan which identifies access and haul routes, construction trailer and storage <br /> areas, etc. <br /> 4. Establish a Tree Protection Zone around each tree to be preserved. For design purposes, the Tree <br /> Protection Zone shall be the edge of grading. No grading, excavation, construction or storage of <br /> materials shall occur within that Zone. <br /> 5. Install protection around all trees to be preserved, to be located three feet outside the limit of <br /> grading. No entry' is permitted into a Tree Protection Zone without permission of the project <br /> superintendant. <br /> 6. Route underground services including utilities, sub-drains, water or sewer around the Tree <br /> Protection Zone. Where encroachment cannot be voided, special construction techniques such as <br /> hand digging or tunneling under roots shall be employed where necessary to minimize root <br /> injury. <br /> 7. Use only herbicides safe for use around trees and labeled for that use, even below pavement. <br /> 8. Design irrigation systems so that no trenching shall occur within the Tree Protection Zone. <br /> Pre-Construction and Demolition Treatments and Recommendations <br /> 1. The demolition contractor shall meet with the Consulting Arborist before beginning work to <br /> discuss work procedures and tree protection. <br /> 2. Trees to be removed shall be felled so as to fall away from Tree Protection Zone and avoid <br /> pulling and breaking of roots of trees to remain. If roots are entwined, the consultant may require <br /> LUND RANCH 11(PUD-25)RESIDENTIAL PROJECT 5 FINDINGS <br />
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