A stormwater management plan prepared by a registered professional engineer. Such plan shall be designed so that the post-development stormwater runoff does not exceed the pre-development stormwater runoff for the twenty-four-hour duration, two-, ten-, and twenty-five-year frequency storm events. The stormwater plan shall be prepared in accordance with Stormwater Management for Maine: Best Management Practices, latest edition, prepared by the Maine Department of Environmental Protection, which is incorporated herein by reference and made a part hereof. The stormwater plan shall include the following information for the pre- and post-development conditions: drainage area boundaries, hydrologic soils groups, ground cover type, time of concentration flow paths, modeling methodology, calculations, and background data. The Board may require review and endorsement of the stormwater plan and calculations by the Knox-Lincoln Soil and Water Conservation District. If the subdivision requires a stormwater permit from the Department of Environmental Protection (DEP), the Board may accept the stormwater permit issued by DEP as evidence that § 170-102A(17) has been satisfied and that an additional submission required under this section is not required.