All applicants for a stormwater permit shall provide the following basic plan exhibits: site topographic map, general plan view drawing, sediment/erosion control plan, and a vicinity topographic map. Each exhibit may be on more than one drawing for clarity. The specific information to be included on each exhibit shall be as noted below.
(A) Site topographic map meeting the following requirements shall be submitted:
(1) Map scales as 1 inch = 100 feet (or less) and accurate to +/- 0.5 feet;
(2) Existing and proposed contours on-site and within 100 feet of site;
(3) Existing and proposed drainage patterns and watershed boundaries;
(4) Delineation of pre-development regulatory floodplain/floodway limits;
(5) Delineation of post-development regulatory floodplain/floodway limits;
(6) Location of cross-sections and any other hydrologic/hydraulic computer modeled features;
(7) Location of all on-site drain tiles;
(8) Boundary of all wetlands, lakes, ponds, etc. with normal water elevation noted;
(9) Location of all existing buildings and those to remain on the site noted;
(10) Nearest base flood elevations;
(11) FEMA and any site-specific benchmarks (tied to county benchmarks) used; and
(12) Highlight all contours used in the calculation of depressional storage.
(B) General plan view drawing meeting the following requirements shall be submitted:
(1) Drawing at the same scale as the site topographic map;
(2) Existing major and minor stormwater systems;
(3) Proposed major and minor stormwater systems;
(4) Design details for stormwater facilities (i.e. structure and outlet work detail drawings, etc.);
(5) Scheduled maintenance program for permanent stormwater facilities including BMP measures;
(6) Planned maintenance tasks and schedule;
(7) Identification of entities responsible for maintenance;
(8) Permanent public access maintenance easements granted or dedicated to, and accepted by, a government entity;
(9) Proposed regulatory floodplain and floodway location (with the base flood and flood protection elevations noted); and
(10) Highlight all plan areas at elevations below the 100-year high water elevation of site runoff storage facilities.
(C) Sediment and erosion control plan meeting the following requirements shall be submitted:
(1) Drawings at the same scale as the site topographic map;
(2) Sediment/erosion control installation measures and schedule;
(3) Existing and proposed roadways, structures, parking lots, driveways, sidewalks and other impervious surfaces;
(4) Limits of clearing and grading;
(5) Floodplain/floodway locations;
(6) Proposed buffer location, existing soil types, vegetation and land cover conditions; and
(7) List of maintenance tasks and schedule for sediment/erosion control measures.
(D) Vicinity topographic map meeting the following requirements shall be submitted.
(1) Vicinity topographic map identifying all off-site areas draining to the development and downstream to the receiving intermittent or perennial stream. (A two foot contour map is preferred at a scale readable by the reviewer but a USGS Quadrangle map is acceptable);
(2) Watershed boundaries for areas draining through or from the development;
(3) Soil types related to hydrologic soils group, vegetation and land cover affecting runoff upstream of the site for any area draining through the site;
(4) Location of development site within the major watershed(s); and
(5) Show the overland flow path from the downstream end of the development to the receiving intermittent or perennial stream.
(E) The submittal shall not be considered complete until the preliminary plat and final engineering drawings have been determined to be complete by the village.
(Ord. 06-0383, passed 3-15-06)