(A) Reference to design manual.
(1) The city shall use the policy, criteria, and information, including technical specifications and standards, in the State of North Carolina Stormwater Design Manual as the basis for decisions about stormwater permits and about the design, implementation and performance of engineered stormwater controls and other practices for compliance with this chapter.
(2) The Design Manual includes a list of acceptable stormwater treatment practices, including specific design criteria for each stormwater practice. Stormwater treatment practices that are designed, constructed, and maintained in accordance with these design and sizing criteria will be presumed to meet the minimum water quality performance standards of the Neuse River Basin Rules.
(B) Changes to standards and specifications. The Design Manual may be updated and expanded from time to time, based on advancements in technology and engineering, or changes to State Minimum Design Criteria. If the standards, specifications, guidelines, policies, criteria, or other information in the Design Manual are amended subsequent to the submittal of an application for approval pursuant to this chapter but prior to approval, the applicant shall have the choice of using the new Design Manual in reviewing the application and in implementing this chapter with regard to the application, or using the old Design Manual.
(C) Whenever an applicant proposes to utilize a practice or practices not designed and constructed in accordance with the criteria and specifications in the Design Manual, the applicant shall have the burden of demonstrating that the practice(s) will satisfy the minimum water quality and quantity performance standards of this chapter. The applicant must provide the documentation, calculations, and examples necessary for the City to make a determination.
(Ord. 23-O-07, passed 4-10-2023)