No land-disturbing activity subject to the control of this chapter shall be undertaken except in accordance with the following mandatory standards.
(A) Buffer zone.
(1) Standard buffer. No land-disturbing activity during periods of construction or improvement to land shall be permitted in proximity to a lake or natural watercourse unless a buffer zone is provided along the margin of the watercourse of sufficient width to confine visible siltation within the 25% of the buffer zone nearest the land-disturbing activity.
(a) Projects on, over, or under water. This division (A) shall not apply to a land-disturbing activity in connection with the construction of facilities to be located on, over, or under a lake or natural watercourse.
(b) Buffer measuremen t. Unless otherwis e provided, the width of a buffer zone is measure d horizont ally from the edge of the water to the nearest edge of the disturbed area, with the 25% of the strip nearer the land-dis turbing activity containing natural or artificial means of confining visible siltation.
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(2) Trout buffer. Waters that have been classified as trout waters by the Environmental Management Commission shall have an undisturbed buffer zone 25 feet wide or of sufficient width to confine visible siltation within the 25% of the buffer zone nearest the land-disturbing activity, whichever is greater. Provided, however, that the Commission may approve plans which include land-disturbing activity along trout waters when the duration of the disturbance would be temporary and the extent of said disturbance would be minimal.
(a) Projects on, over, or under water. This division shall not apply to a land-disturbing activity in connection with the construction of facilities to be located on, over, or under a lake or natural watercourse.
(b) Trout buffer measurement. The 25-foot minimum width for an undisturbed buffer zone adjacent to designated trout waters shall be measured horizontally from the top of the bank to the nearest edge of the disturbed area.
(c) Limit on land disturbance. Where a temporary and minimal disturbance has been permitted as an exception to the trout buffer, land-disturbing activities in the buffer zone adjacent to designated trout waters shall be limited to a maximum of 10% of the total length of the buffer zone within the tract to be disturbed such that there is not more than 100 linear feet of disturbance in each 1,000 linear feet of buffer zone. Larger areas may be disturbed with the written approval of the Director.
(d) Limit on temperature fluctuations. No land-disturbing activity shall be undertaken within a buffer zone adjacent to designated trout waters that will cause adverse temperature fluctuations in the trout waters, as set forth in 15 NCAC 2B.0211 “Fresh Surface Water Classification and Standards.”
(B) Graded slopes and fills. The angle for graded slopes and fills shall be no greater than the angle that can be retained by vegetative cover or other adequate erosion control devices or structures. In any event, slopes left exposed will, within 21 calendar days of completion of any phase of grading, be planted or otherwise provided with temporary or permanent ground cover, devices, or structures sufficient to restrain erosion. The angle for graded slopes and fills must be demonstrated to be stable. Stable is the condition where the soil remains in its original configuration, with or without mechanical constraints.
(C) Fill material. Unless a permit from the Department’s Division of Waste Management to operate a landfill is on file for the official site, acceptable fill material shall be free of organic or other degradable materials, masonry, concrete, and brick in sizes exceeding 12 inches, and any materials which would cause the site to be regulated as a landfill by the State of North Carolina.
(D) Ground cover. Whenever land-disturbing activity that will disturb more than one acre is undertaken on a tract, the person conducting the land-disturbing activity shall install erosion and sedimentation control devices and practices that are sufficient to retain the sediment generated by the land disturbing activity within the boundaries of the tract during construction upon and development of the tract, and shall plant or otherwise provide a permanent ground cover sufficient to restrain erosion after completion of construction or development. Except as provided in § 152.08(B)(5) below, provisions for a ground cover sufficient to restrain erosion must be accomplished within 15 working days or 90 calendar days following completion of construction or development, whichever period is shorter.
(E) Prior plan approval. No person shall initiate any land-disturbing activity that will disturb more than one acre on a tract, unless 30 or more days prior to initiating the activity, a plan for the activity is filed with and approved by the town. An erosion and sedimentation control plan may be filed less than 30 days prior to initiation of a land-disturbing activity if the plan is submitted under an approved express permit program. The land-disturbing activity may be initiated and conducted in accordance with the plan once the plan has been approved. The town shall forward to the Director of the Division of Water Resources a copy of each plan for a land-disturbing activity that involves the utilization of ditches for the purpose of de-watering or lowering the water table of the tract.
(F) Conduct. The land-disturbing activity shall be conducted in accordance with the approved erosion and sedimentation control plan.
(Ord. 2007-11, passed 10-16-2008; Am. Ord. 2015-01, passed 1-8-2015) Penalty, see § 152.99