Secondary and Cumulative Impacts Master Management Plan - 2014

Article 6: Riparian Buffers Section 6.8. Uses and Activities Permitted in Riparian Buffers 6.6.3. Riparian Buffer Variance Review Standards

Table 6.8: Uses and Activities Permitted in Riparian Buffers

Allowable with Mitigation [3]

Use or Activity

Exempt [1] Allowable [2]

Fences where disturbance is minimized and installation results in removal of trees as defined in this Ordinance Fertilizer application: one-time application to establish vegetation Revegetation in Zone Two where diffuse flow and the health of existing vegetation in Zone One is not compromised and disturbed areas are stabilized until they are revegetated Greenway/hiking trails designed, constructed, and maintained to maximize nutrient removal and erosion protection, minimize adverse effects on aquatic life and habitat, and protect water quality to the maximum extent practical Maintenance access on modified natural streams via a grassed travel way on one side of the water body where less impacting alternatives are not practical, the width and specifications of the travel way are only that needed for equipment access and operation, and the travel way is located to maximize stream shading Mining activities covered by the Mining Act where new riparian buffers that meet the requirements of Section 6.3, Riparian Buffers and Zones, and Section 6.7, Diffuse Flow Requirements, are established adjacent to the relocated channels Mining activities not covered by the Mining Act OR where new riparian buffers that meet the requirements of Section 6.3, Riparian Buffers and Zones, and Section 6.7, Diffuse Flow Requirements are not established adjacent to the relocated channels Wastewater or mining dewatering wells with approved NPDES permit Playground equipment on lots with single-family detached or manufactured home dwellings where installation and use does not result in removal of vegetation 512 Playground equipment installed on lands other than single-family lots or that requires removal of vegetation Protection of existing structures, facilities, and stream banks when this requires additional disturbance of the riparian buffer or the stream channel Railroad impacts other than crossings of streams and other surface waters subject to this article Railroad crossings of streams and other surface waters subject to this article: Railroad crossings that impact no more than 40 linear feet of riparian buffer Railroad crossings that impact more than 40 linear feet but no more than 150 linear feet or 1/3 acre of riparian buffer Railroad crossings that impact more than 150 linear feet or 1/3 acre of riparian buffer Removal of previous fill or debris where diffuse flow is maintained and vegetation is restored Road impacts other than crossings of streams and other surface waters subject to this article Road crossings of streams and other surface waters subject to this article: Road crossings that impact no more than 40 linear feet of riparian buffer Road crossings that impact more than 40 linear feet but no more than 150 linear feet or 1/3 acre of riparian buffer Road crossings that impact more than 150 linear feet or 1/3 acre of riparian buffer Historic preservation

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

512 The current Riparian Buffer Ordinance‘s table refers to ―single-family lots‖ (an undefined term). This modification assumes the current provision is intended to refer to lots containing single-family detached and manufactured home dwellings.

April 2013 Page 6-14

Morrisville, NC

Unified Development Ordinance - Public Review Draft