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June 16, 2022 <br />43 <br /> <br />b. In areas where a floodway profile has not been computed as part of an approved <br />flood study, the buffer zone shall be at least fifty (50) feet perpendicular from the <br />top of bank on each side of the waterway. <br />c. When a delineated wetland extends beyond the edge of the required buffer zone <br />width, the buffer zone shall be adjusted so that the buffer zone consists of the <br />extent of the delineated wetland plus twenty-five (25) feet extending perpendicular <br />beyond the wetland edge. <br />d. When a vegetative buffer is established parallel to contour lines along the <br />watercourse and at increased widths for areas of steeper slopes, the minimum <br />required width may be reduced in accordance with the following table: <br /> 3. The vegetative buffer zone width shall be adjusted to meet the following requirements: <br />a. All vegetative buffer zone widths shall be adjusted if the following slopes are <br />present within the vegetative buffer zone: <br /> b. If the proposed or existing land use or activity involves the storage of hazardous <br />substances or petroleum facilities, the buffer zone width shall also be adjusted to <br />include an additional one hundred and fifty (150) feet plus any additional distance <br />required based on the Slope-Width Table. <br />c. If the proposed or existing land use or activity involves animal feeding operations, <br />the buffer zone width shall also be adjusted to include an additional two hundred <br />and fifty (250) feet, plus any additional distance required based on the Slope-Width <br />Table. <br />d. If the proposed or existing land use or activity involves solid waste landfills or <br />junkyards, the buffer zone width shall also be adjusted to include an additional <br />three hundred (300) feet, plus any additional distance required based on the Slope- <br />Width Table. <br />4. Management of the vegetative buffer zone includes specific limitations on alteration of the <br />natural conditions pursuant to the minimal and limited disturbance zone setbacks of this <br />Ordinance. <br />5. Stream banks and other areas within the vegetative buffer zone must be left in a stabilized <br />condition upon completion of the development activities. The vegetative condition of the <br />entire streamside vegetative buffer zone must be monitored, and landscaping or