(A) All structural stormwater best management practices (BMPs) shall meet the minimum design requirements of this section, as well as those established in the most current edition of the North Carolina Department of Environment and Natural Resources, Division of Water Quality’s Stormwater Best Management Practices Manual. The use of environmentally friendly water quality controls, such as storm drain trays and pervious tree surrounds, are encouraged.
(B) All structural stormwater BMPs shall be designed to be aesthetically pleasing or the extent that the BMP type allows, and as defined by compliance with this chapter, and shall not include fencing unless approved by the County Engineer. Fencing may be permitted or required due to site conditions and/or under special circumstances where the public health and safety is a reasonable concern. The following are examples of site conditions which may necessitate fencing: within 50 feet of public right(s)-of-way, driveway, or parking area, and/or if the structural BMP is three or more feet deep.
(1) All fences shall meet the requirements of this chapter, as applicable.
(2) In cases where chain link fencing is permitted, such fencing shall be coated.
(C) (1) Drought tolerant species of vegetation and warm weather grasses shall be utilized on the BMPs.
(2) Vegetation shall be required around perimeter slopes but shall not be planted on the structural BMP dam.
(3) Plantings shall be in a single row when medium sized trees are used and shall be in two rows when small trees and shrubs are utilized.
(D) Side slopes shall be stabilized with vegetation and with a slope no steeper than 3:1 ratio.
(E) As-built drawings shall be submitted to the county for review prior to issuance of a certificate of occupancy for the site.
(Ord. passed 10-17-2011)