§ 10.64. STORMWATER DRAINAGE SYSTEM.

The subdivider shall install a stormwater management system constructed to the standards of Chapter 18, Article V of the Code of Ordinances and the Manual of Stormwater Management Practices. In accordance with G.S. 143-215.1(d) and 15A NCAC 02H.0201, the subdivider is required to apply to the state department of environment and natural resources, division of water quality, for a stormwater management permit if a CAMA major development or a sedimentation/erosion control plan is required.

10.64.1. No surface water shall be channeled or directed into a sanitary sewer.

10.64.2. Where feasible, the subdivider shall connect to an existing storm drainage system.

10.64.3. Where an existing storm drainage system cannot feasibly be extended to the subdivision, a surface drainage system shall be designed to protect the proposed development from water damage.

10.64.4. Surface drainage courses shall comply with the standards and specifications for erosion control of the North Carolina Sedimentation Pollution Control Act, G.S. 143-34.12, and 15A NCAC 04.

10.64.5. The minimum grade along the bottom of a surface drainage course shall be a vertical fall of at least one foot in each 200 feet of horizontal distance.

10.64.6. Streambanks and channels downstream from any land disturbing activity shall be protected from increased degradation by accelerated erosion caused by increased velocity of runoff from the land disturbing activity in accordance with the North Carolina Sedimentation Pollution Control Act, G.S. 143-34.12, and 15A NCAC 04.

10.64.7. Anyone constructing a dam or impoundment within the subdivision must comply with the North Carolina Dam Safety Law of 1967, G.S. 143-215.23 et seq., and 15A NCAC 02K.

10.64.8. In all areas of special flood hazards, all subdivision proposals shall have adequate drainage provided to reduce exposure to flood damage.

(Ord. of 10-9-2018)