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4 <br />Amendments to the Orange County <br />Stormwater Ordinance for Lands within the Neuse Basin <br />Apri12007 <br />NOTE: The underlined text will be added to the Ordinance and the struck-through text <br />will be deleted. The attached Stormwater Ordinance amendments conform to <br />requirements by the North Carolina Department of Environment and Natural Resources <br />for counties within the Neuse and Tar-Pamlico River Basins. <br />Appendix 2 <br />Table 2a: Nitrogen Export Reduction Options <br />Residential Commercial /Industrial <br />If the computed export is less than 6.0 If the computed export is less than 10.0 <br />lbs/ac/yr, then the owner may either: lbs/ac/yr, then the owner may either: <br />1. Install BMPs to remove enough nitrogen 1. Install BMPs to remove enough nitrogen to <br />to bring the development down to 3.6 bring the development down to 3.6 <br />lbs/ac/yr. lbs/ac/yr. <br />2. Pay aone-time offset payment to bring 2. Pay aone-time offset payment to bring the <br />the nitrogen down to 3.61bs/ac/yr. nitrogen down to 3:6 lbs/ac/yr. <br />3. Do a combination of BMPs and offset 3. Do a combination of BMPs and offset <br />payment to achieve a 3.61bs/ac/yr export. payment to achieve a 3.61bs/ac/yr export. <br />If the computed export is greater than 6.0 If the computed export is greater than 10.0 <br />lbs/ac/yr, then the owner must use on-site lbs/ac/yr, then the owner must use on-site <br />BMPs to bring the development's export BMPs to bring the development's export down <br />down to 6.0 lbs/ac/yr. Then, the owner may to 10.0 lbs/ac/yr. Then, the owner may use one <br />use one of the three options above to achieve of the three options above to achieve the <br />the reduction between 6.0 and 3.61bs/ac/yr. reduction between 10.0 and <br /> 3.61bs/ac/yr. <br />The table above.discusses the option of using offset fees to meet the nitrogen export <br />levels set for new development activities. These offset fees go to the North Carolina <br />Ecosystem Enhancement Program (NCEEP). The NCEEP will utilize these fees in <br />accordance with the Basinwide Wetlands and Riparian Restoration plans. It is the policy <br />of the NCEEP to utilize the funds where they are generated to the maximum extent <br />possible as long as they can obtain the cooperation of the local government. <br />T 1 1 + +1< +n+nl n r+ n~ nf4'on+ rn<~mnr+ <~on +1<n 4'nlln<x~irrr fnrm<~ln• <br />7 • <br />~:' <br />~ R n,<.~i l~no+ N / A nl <. !1 A n / ZS A nl <br />Neuse Nitrogen Export Options <br />April, 2007 <br />