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utilize low- volume drip, bubbler, or other water conserving irrigation systems to the maximum extent possible. 84. All trees used in landscaping be a minimum of fifteen (15) gallons in size and all shrubs a minimum of five (5) gallons, unless otherwise shown on the approved landscape plan. All planting in bioswales shall be in conformance with Appendix B of the Alameda County Clean Water Program's C.3 Stormwater Technical Guidance, dated May 2, 2016. 85. The project developer shall provide root control barriers and four inch (4 ") perforated pipes for street trees and trees in planting areas less than ten feet (10' 0 ") in width, as determined necessary by the Director of Community Development at the time of review of the final landscape plans. 86. The applicant/project developer shall mitigate the removal of heritage -sized trees that are in fair and better than fair condition by making a payment to the Urban Forestry Fund based on the appraised value of these heritage -sized trees. If additional planting is proposed and /or the sizes of some or all of the trees that are presently shown on the landscape plan are increased, credit will be given for additional planting and /or upsizing the tree sizes. The planting size increase and reduced payment to the Urban Forestry Fund is subject to review and approval by the City Landscape Architect and Director of Community Development. The payment shall be paid in full prior to issuance of a building permit. 87. The project developer shall post cash, letter of credit, or other security satisfactory to the Director of Community Development in the amount of $5,000 for each tree required to be preserved, up to a maximum of $25,000. This cash bond or security shall be retained for one year following acceptance of public improvements or completion of construction, whichever is later, and shall be forfeited if the trees are destroyed or substantially damaged. No trees shall be removed other than those specifically designated for removal on the approved plans or tree report. 88. No tree trimming or pruning other than that specified in the tree report shall occur. The project developer shall arrange for the horticultural consultant to conduct a field inspection prior to issuance of grading permits to ensure that all recommendations have been properly implemented. The consultant shall certify in writing that such recommendations have been followed. 89. Prior to issuance of a grading or building permit, the project developer shall install a temporary six foot tall chain -link fence (or other fence type acceptable to the Director of Community Development) generally outside of the driplines of the existing trees to be saved that are located near construction. The final location of said fencing shall be subject to the review and approval of the Director of Community Development. The fencing shall remain in place until final landscape inspection by the Community Development Department. Removal of such fencing prior to that time may result in a "stop work order." PUD -110, Irby Ranch Page 16 of 32 City Council