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(D) Article 6: Development Standards Section 6.13: Stream Buffers (5) Archaeological activities /projects conducted in accordance with all applicable County, State and Federal regulations. (6) Dam /reservoir maintenance activities. (7) Maintenance of existing outfalls provided they are managed to minimize the sediment, nutrients, and other pollution that convey to waterbodies. (8) Driveway crossings on single - family residential lots that disturb less than, or equal to, 25 linear feet or 2,500 square feet of stream buffer. (9) Greenways and /or hiking trails six feet in width composed of natural materials at least 30 feet from the top of bank of a stream or water body. (10) Historic preservation projects /activities. (11) Periodic maintenance of modified natural streams, such as canals, and a grassed travel way on one side of the surface water when alternative forms of maintenance access are not practical. (12) Public water and sewer lines that do not disturb over 40 linear feet. (13) Stream restoration and /or stream bank stabilization. (14) Wetland restoration, in accordance with all applicable County, State and Federal regulations. (15) Vegetation management, including but not limited to: (a) Emergency fire control measures provided that topography is restored; (b) Planting vegetation to enhance the riparian buffer; (c) Pruning forest vegetation provided that the health and function of the forest vegetation is not compromised and the pruning activity is conducted by hand; (d) Removal of individual trees which are in danger of causing damage to dwellings, other structures or human life provided the activity is conducted by hand; and (e) Removal of poison ivy and other nuisance vegetation, including invasive exotics, as identified by the NC Cooperative Extension. Uses Allowable With Mitigation The following uses are allowable within stream buffers with mitigation, subject to the standards established in Sections 6.13.6(A) and 6.13.6(B) above, as well as any specific standards for the use: (1) Water dependent structures, such as docks, piers, public and private boat ramps, boat houses over the water, walkways, water recreational amenities, and other similar uses. (2) New drainage outfalls provided that a stormwater management facility is installed to control nutrients and attenuate flow before the conveyance discharges into the stream buffer. (3) Driveway crossings on single - family residential lots that disturb less than, or equal to 150 linear feet or 1/3 of an acre of stream buffer. (4) Any driveway or roadway, whether for a single - family residence or a subdivision, that is parallel to the stream or water body, regardless of cumulative impact. (5) Greenways and /or hiking trails six feet in width, with improved paths (i.e. paved, wood decking, etc.) at least 30 feet from the top of bank of a stream or water body. Orange County, North Carolina — Unified Development Ordinance Page 6 -99