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b. Ingress and egress during construction shall be limited to one <br /> access point. <br /> <br /> (2) Indigenous vegetation shall be preserved to the maximum extent <br /> practicable consistent with the use or development proposed and m <br /> accordance with the Virginia Erosion and Sediment Control Handbook. <br /> <br /> a. Existing trees over two (2) inches in diameter m breast height <br /> (DBH) shall be preserved outside the construction footprint. <br /> Diseased trees or trees weakened by age, storm, fire, or other <br /> injury may be removed. <br /> b. Other woody vegetation onsite shall be preserved outside the <br /> approved construction footprint. <br /> c. Clearing shall be allowed only to provide necessary access, <br /> positive site drainage, water quality BMPs, and the installation of <br /> utilities. <br /> <br /> (3) Prior to clearing or grading, suitable protective barriers, such as fencing of <br /> a type detailed in the Landscape Planting and Protection Manual, <br /> Portsmouth, Virginia shall be erected 5 feet outside of the dripline of any <br /> tree or stand of trees to be preserved. These protective barriers shall <br /> remain so erected throughout all phases of construction. The storage of <br /> equipment, material, debris, or fill shall not be allowed within the area <br /> protected by the barrier. <br /> <br /> (4) Land development shall minimize impervious cover to promote infiltration <br /> of stormwater into the ground consistent with the proposed use or <br /> development. Pervious surfaces shall be used for any required parking <br /> area, alley, or other low traffic driveway. <br /> <br /> (5) Notwithstanding any other provisions of this Chapter or exceptions or <br /> exemptions thereto, any land disturbing activity exceeding 2,500 square <br /> feet, including construction of all single-family houses, septic tanks, and <br /> drainfields, shall also comply with the requirements of Chapter l 1 of the <br /> City Code (Erosion and Sediment Control Ordinance). <br /> <br /> (6) Where the best managemem practices require regular or periodic <br /> maintenance in order to continue their functions, such maintenance shall <br /> be ensured through a maintenance agreement between the owner or <br /> developer and the City of Portsmouth or some other mechanism that <br /> achieves an equivalent objective. <br /> <br /> (7) All on-site sewage disposal systems not requiring a VPDES permit shall <br /> be pumped out at least once every five (5) years, in accordance with the <br /> provisions of Section 38-312 of the Code. <br /> <br /> <br />