(a) Storm sewers are to be provided by the subdivider. Storm drains shall accommodate the runoff from the flows from developed lots as well as runoff from the proposed streets. Open ditches or drainage swales parallel to the pavement will not be permitted. Storm flows may flow through swales parallel to lot lines to catchbasins located behind the curb.
(b) Storm sewer connections shall be made available for each lot in the subdivision. These connections shall be used for footer drains and downspout tiles.
(c) The subdivider shall show on the construction plans, plat, or other drawings a drainage plan for the subdivision. In areas where the topography will create sheet flows from higher rear yards to lower yards rear lot drainage shall be provided. This may include but not be limited to drainage swales, rear yard tiles, and catchbasins.
(d) The Municipality encourages the subdivider to be creative in designing the stormwater system. Stormwater retention in the paved areas is also encouraged. If the calculated storm flows exceed the reserve capacities of the existing stormwater system or if the existing topography lends itself to natural retention areas storm water retention will be required. The Engineering Department will review drainage proposals and require stormwater retention for any proposed change or expansion of land use and any subsequent increase in storm flows.
(e) In addition to Municipality requirements, the subdivision development shall comply with all State and Federal rules, regulations and policies having jurisdiction over the proposed development including but not limited to the U.S. Army Corps of Engineers, Ohio Department of Natural Resources and the Ohio Environmental Protection Agency.
(f) The one hundred year flood elevation established by the Federal Emergency Management Agency bases on U.S.G.S. datum is 853.91 feet above sea level. No catch basin inlets manhole tops, buildings, roadways, or other permanent structures shall be constructed below this elevation.
(Ord. 1166. Passed 9-24-01.)