A map
illustrating an analysis of natural drainage patterns and water resources
within the proposed subdivision tract, including delineation of streams,
natural drainage swales, ponds and lakes, wetlands, floodplains subject
to a 100-year flood frequency, storm sewers, and permanent and seasonal
high water table areas. The map shall be based on USGS quad sheets,
County Soil Survey Maps, and the flood boundary and floodway map from
the Municipal Flood Insurance Study, when available.