Inventory the existing site conditions to gather information which will help develop the most effective storm water management plan. The information obtained should be plotted on a map and included with the calculations portion of the plan.
(a) Topography. A 200-scale topographic map of the site should be prepared to show the existing elevations at two foot (2') intervals or other intervals as deemed necessary by the Village of Edgerton. When drainage areas are large and cover areas off-site, USGS maps may be used to show these off-site drainage areas.
(b) Drainage Patterns. All existing drainage swales and patterns should be located and clearly marked on the topographic map.
(c) Soils. Major soil type(s) on the site should be determined and shown on the topographic map. Soil information can be obtained from the Williams County Soil Survey of the Village of Edgerton. Soil information should be plotted directly onto the map or an overlay of the same scale for ease of interpretation.
(d) Ground Cover. The existing vegetation on the site should be shown on the topographic map. Such features as tree clusters, grassy areas and unique vegetation should be located on the map. In addition, existing denuded or exposed soil areas should be indicated on the map. (Ord. 864. Passed 5-4-09.)