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Article 6: Development Standards 32 <br /> Section 6.14: Stormwater Management <br /> (9) New stormwater management ponds, with or without a riparian buffer established <br /> adjacent to the pond. <br /> (10) Vegetation Management that includes the installation of new vegetation and a <br /> one-time application of fertilizer to re-establish the vegetation. <br /> (11) Vegetation Management/ Replanting in an effort to protect existing structures. <br /> 6.13.7 Diffuse Flow Requirement <br /> (A) Diffuse flow of runoff shall be maintained in the stream buffer by dispersing concentrated <br /> flow and re-establishing vegetation. <br /> (B) Concentrated runoff from new ditches or constructed conveyances shall be converted to <br /> diffuse flow before the runoff enters the stream buffer. <br /> (C) Periodic corrective action to restore diffuse flow shall be taken if necessary to impede the <br /> formation of erosion gullies. <br /> 6.13.8 Land Disturbance and Planting of Vegetation <br /> (A) Area within a stream buffer which is subject to serious erosion may be disturbed for the <br /> purpose of planting and maintaining erosion-resistant vegetative cover. <br /> A Existing forested areas or any other healthy vegetation may not be removed from a <br /> stream buffer, except where replaced with vegetation resulting in comparable stormwater <br /> runoff velocity and quantity one year after planting. <br /> (C) New vegetation shall be planted to capture non-source pollutants before they reach the <br /> perennial stream, as per applicable Orange County Standards. <br /> SECTION • - <br /> 6.14.1 Introduction <br /> As a watershed becomes more developed, the amount of impervious surface increases, causing <br /> a decrease in the rate at which stormwater runoff which can be absorbed into the soil. This <br /> results in more stormwater flowing directly into streams and other water bodies. Because this <br /> direct runoff has not been filtered through the soil, pollutants from the air and land surface enter <br /> streams and increase the potential for pollution of drinking water supplies. <br /> 6.14.2 Purpose <br /> The purpose of the Board of County Commissioners in adopting stormwater regulations is to <br /> protect the water quality of the streams that lie within Orange County by reducing and controlling <br /> stormwater runoff and addressing nutrient reductions for both new and existing development. <br /> 6.14.3 Jurisdiction-Wide and Inter-Local Approaches <br /> (A) Orange County shall have the option of implementing jurisdiction-wide and/or inter-local <br /> approaches to control stormwater runoff and achieve nutrient reductions. <br /> (B) Any jurisdiction-wide and/or inter-local approaches must be approved by the Orange <br /> County Board of Commissioners, and the Environmental Management Commission <br /> before implementation. <br /> 6.14.4 General Methods <br /> The following general approaches shall be utilized to minimize the effects of stormwater pollution <br /> on drinking water supplies in Orange County: <br /> (A) Non-Structural Stermwater CentrelStormwater Control Measures (SCMs) <br /> Orange County, North Carolina—Unified Development Ordinance Page 6-95 <br />