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Article 6: Development Standards <br /> Section 6.14: Stormwater Management 17 <br /> (E) Permanent Nutrient Export Reduction Best Management Practices <br /> (1) 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 /> The fellowi­ en site BMPs may be itilized f-,—A, <br /> deyelnp men+c- <br /> ¢47 Wet detPn#+eR-p6nds, <br /> ¢a; 'eted we#lands, <br /> X67--0�eat <br /> -Riparian Iu#er-& <br /> (8) BioFeterltie-er <br /> (9) . <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 /> basis. ___s Will be Gredited <br /> To reGeiVe fi-i" nutrient FedUGtien c;redit, desigR standards must follow these eg'tlined iR <br /> the S_termwateF BMP Manual. frern the design standards may be allowed as <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) Exe Pti.ars to the Peak Flow Requirements <br /> T <br /> (1) Peak flGW FequdreFneRts are waived I'-- <br /> ^ri <br /> aces not eXGeed 7 _ <br /> (b) PFOposed new devele Pme­nt meets all of the fellewing —4—;_ <br /> W --Total impe�surface is less than T and <br /> ,(iii) Remaining peWiE stermwater FunGff-GGntrel <br /> r„a ^ <br /> (G) Detention ­411 fUrtk­0­4 ing en Iands that have expe..'_­_ <br /> 113% This request for exemp prepared b" North <br /> tmen must be a registered <br /> Designee.Appeals of this decisien will f ll c + 2.24 of this 0rdiR <br /> (C) Calculating Peak Runoff Volume <br /> Orange County, North Carolina-Unified Development Ordinance Page 6-106 <br />