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Article 6: Development Standards 84 <br /> Section 6.14: Stormwater Management <br /> (c) New development that disturbs less than the above thresholds are <br /> exempt unless the new development is part of a larger common plan of <br /> development or sale and the larger common plan exceeds the above <br /> thresholds, even though multiple, separate or distinct activities take place <br /> at different times on different schedules. <br /> (2) Jordan Lake Watershed <br /> (a) Any activity Land-Disturbing Activity that cumulatively disturbs greater <br /> than one acre of land in order to establish, expand or modify a single <br /> family or duplex residential development or a recreational facility. <br /> (b) Any' Land-Disturbing Activity that cumulatively disturbs greater <br /> than one-half an acre of land in order to establish, expand, or modify a <br /> multifamily residential development or a commercial, industrial or <br /> institutional facility. <br /> (c) New development that disturbs less than the above thresholds are <br /> exempt unless the new development is part of a larger common plan of <br /> development or sale and the larger common plan exceeds the above <br /> thresholds, even though multiple, separate or distinct activities take place <br /> at different times on different schedules. <br /> (B) New development shall not include agriculture, mining, or forestry activities, as defined by <br /> North Carolina General Statutes. <br /> 6.14.6 Review Criteria <br /> (A) New Development <br /> (1) Riparian areas must be protected and maintained in compliance with this <br /> Ordinance, <br /> (2) Nutrient load contribution must meet the standards listed in Section 6.14.7 of this <br /> Ordinance154 as required by the North Carolina Department of Environmental <br /> Quality(NCDEQ), <br /> (3) Stormwater systems shall be designed to control and treat, at a minimum, the <br /> stormwater runoff generated by one inch of rainfall from all project area surfaces. <br /> The treatment volume shall be drawn down pursuant to standards specific to <br /> each practice as determined by the most current version155 of the North Carolina <br /> Administrative Code Title 15A, Subchapter 02H, Sections .1000 through .1062, <br /> and the most current version of the NCDEQ Stormwater Design Manual. <br /> (4) New development that would exceed the nutrient loading rates set out herein, <br /> shall include engineered stormwater controls designed to have a Primary and/or <br /> Secondary SCM per NCDEQ requirements. <br /> (5) Proposedreposed new development may satisfy the review criteria standards of <br /> this section using a Runoff Volume Match design approach (also referred to as a <br /> Low Impact Development (LID)design approach) in conformance with 15A <br /> NCAC 02H.1002 (44). If pursued, a Runoff Volume Match design approach must <br /> include the use of the accounting methodologies approved by the North Carolina <br /> Division of Energy, Mineral, and Land Resources (NCDEMLR).156 <br /> (B) Additional Standards— Falls Lake Watershed <br /> 114 Consistent reference to"this Ordinance". <br /> 1ss Consistent reference to"most current versions"of Subchapter 02H and the NCDEQ Stormwater Design Manual. <br /> Ise Section 6.14.6(A)5 has been updated to refer to the state's current use of the term "Runoff Volume Match", <br /> rather than referencing the now outdated 2009 LID Guidebook. <br /> Orange County, North Carolina—Unified Development Ordinance Page 6-100 <br />