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a. No existing tree may be trimmed or pruned without prior approval by the Community Development Director. b. No equipment may be stored within or beneath the driplines of the existing trees. c. No oil, gasoline, chemicals, or other harmful materials shall be deposited or disposed within the dripline of the trees or in drainage channels, swales, or areas that may lead to the dripline. d. No stockpiling/storage of fill, etc., shall take place underneath or within five feet of the dripline of the existing trees. 72. Prior to issuance of a grading or building permit, the applicant shall install a temporary six foot tall chain-link fence (or other fence type acceptable to the Director of Community Development) outside of the existing tree drip lines, as shown on the plans. 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." 73. The applicant shall comply with the following tree root cutting requirements: • Roots that are one inch (1") in diameter and smaller are not considered to be significant and may be removed by the most efficient means. • Within eight feet (8') of the tree trunk, no roots larger than two inches (2") in diameter shall be cut or ground unless prior approval has been received from the Director of Community Development. ® Farther than eight feet (8') from the tree trunk, roots of any diameter may be ground a maximum of one-half (1/2) of their diameter if they are in conflict with the proposed work. Work of this nature shall only be performed using a mechanical stump grinder and only by personnel experienced with its operation. o Farther than eight feet (8') from the tree trunk, roots up to six inches (6") in diameter may be removed if they are in conflict with the proposed work. Roots that are removed shall be cleanly cut using a hand saw. Engineering Department 74. A "Conditions of Approval" checklist shall be completed and attached to all plan checks submitted for approval indicating that all conditions have been satisfied. 75. All existing septic tanks or holding tanks shall be properly abandoned, pursuant to the requirements of the Alameda County Department of Health Services prior to the start of grading operations, unless specifically approved by the City Engineer. P14-0124, P14-0125, and PUD-107/377 St. Mary Street Planning Commission 14 of 26