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l <br /> Article 6: Development Standards <br /> Section 6.14: Stormwater Management <br /> (E) Permanent Nutrient Export Reduction Best Management Practices <br /> Allowable on-site structural stormwater BMPs for nutrient reduction shall include <br /> those listed in the current NC DWQ Stormwater Best Management Practices <br /> Manual (Stormwater BMP Manual)or others approved on a case by case basis. <br /> (2) Design, maintenance and operation of stormwater BMPs shall follow standards <br /> provided in the Stormwater BMP Manual. <br /> (3) Deviations from these standards may be allowed as approved on a case by case <br /> basis. <br /> dew <br /> (4) Wetdete„t;OR PeRdS, <br /> (5) (GGRGtFHGted wetlands, <br /> `7) RipaFiaR b #er-,, <br /> (9) Gtheps appreved by NGPWQ. <br /> (F) Total Nutrient Removal Rates <br /> Total nutrient removal rates of stormwater BMPs and BMPs in a series will be calculated <br /> pursuant to the approved accounting tool. <br /> the Ste <br /> 6.14.8 Peak Runoff Volume <br /> (A) Standard <br /> For all new development, there shall be no net increase in peak flow leaving the site from <br /> the predevelopment conditions for the 1 year, 24 hour storm. <br /> (B) Exemptions to the Peak Flow Requireme4#& <br /> 0) Peak flow requ'FeMeRtr,are Waived fer deV81GPMeRt that meets the fqll.G� <br /> GFiteFia: <br /> 0 <br /> 0 <br /> Remaining perviGus s -zes'_;tA_FRW.AVateF PuRefF,.,.p#(94 <br /> (2)This request fer exemptien must be prepped by a Nerth GaFc)!OR@ registeFeel <br /> PesigRee. Appeals of this deGiGieR Will fG!!eW SeGt*E)R 2.24 ef this QFdiRaRGe. <br /> (C) Calculating Peak Runoff Volume <br /> Orange County, North Carolina—Unified Development Ordinance Page 6-106 <br />