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Table 3, "Flood Insurance Zone: Data," summarizes the flood elevation differences, Flood Hazard Factors, flood insurance zones, and base flood elevations for each flooding source studied in detail in the cormnunity. , 5.4 Flood Insurance Rate Map Description The Flood Insurance Rate Map for the City of Greenwood Village is, for insurance purposes, the principal result of the Flood Insurance study. This map contains the official delineation of flood insur- ance zones and base flood elevation lines. Base flood elevation lines show the locations of the expected whole-foot water-surface elevation of the base (lOa-year) flood. This map is developed in accordance with the latest flood insurance map preparation guide- lines published by the Federal Insurance Administration. 6.0 OTHER S'I'TmIF.S There are seven published reports pertaining to the flooding sources of Greenwood Village. J In October 1968, the U.S, Army Corps of Engineers completed a Flood Plain Information Report that included tHe portions of Big Dry Creek, Little Dry Creek, and Greenwood Gulch witHin the Greenwood Village study area. This report was approved by the Colorado Water Conservation Board on May 7, 1969 (Reference 9). Since that time two studies which rescind portions of the original U,S, Army Corps of Engineers report have been completed and approved by the Colorado Water Conservation Board. The Major Drainageway Planning, Little Dry Creek Report (Reference 1), was approved by the Colorado Water :Conservation Board on June 21, 1974. The report contained studies of portions of Little Dry Creek and Greenwood Gulch that flow through Greenwood ~illage. The peak discharges and the lOa-year profile developed in the report were used in the present Flood Insurance Study. Therefore, the studies are in agreement throughout the communi ty , The Major Drainageway Master Plan ~ig Dry Creek (References 3 and 4), was approved on July 9, 1975 by the Colorado Water Conservation Board, This rescinded and revised the BigiDry Creek flood plain determined in the original U,S. Army Corps of Engineer Flood Plain Information report of October 1968, A comparison of tihe Flood Insurance Study to the Master plan was made and the final results were in agreement. The Goldsmith Gulch Flood Hazard Area Delineation Report (Reference 2), provided the peak discharges and the 10- and lOa-year profiles used in this study. 14