Unless otherwise directed by the Department, after approval of the concept plan, the applicant must submit site development plans that reflect comments received during the previous review phase. Plans submitted for site development approval must be of sufficient detail to allow site development to be reviewed and must include:all information provided during the concept plan review phase; drainage area maps that show, at a minimum scale of 1" = 200':existing, interim, and proposed topography; proposed improvements; standard symbols for proposed sediment control features; and pertinent drainage information, including provisions to protect downstream areas from erosion for a minimum of 200 feet downstream or to the next conveyance system; a proposed erosion and sediment control plan that contains:the existing and proposed topography and improvements, at a scale between 1" = 10' and 1" = 50' with 2 foot contours or other approved contour interval; interim contours for projects with more than minor grading, if required by the Department; scale, project, and sheet title, and north arrow on each plan sheet; the limit of disturbance, including:limit of grading (grading units, if applicable); and initial, interim, and final phases; storm drainage features, including:existing and proposed bridges, storm drains, culverts, outfalls, etc.; velocities and peak flow rates at outfalls for the 2-year and 10-year frequency storm events; and site conditions around points of all surface water discharge from the site; any phasing necessary to limit earth disturbances and impacts to natural resources; and an overlay plan that shows the types and locations of stormwater practices and erosion and sediment control practices to be used; a narrative that indicates how proposed erosion and sediment control practices will be integrated with proposed stormwater management strategy using environmental site design in accordance with Division II of <cite data-path="|7">this article</cite>; and any other information that the Department requires. Ord. 13-095