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long as the local government understands and agrees that a detailed hydrologic and hydraulic study will be performed by a professional engineer and provided by the developer or proponent ofthe floodplain development activity prior to any floodplain development; and WHEREAS, the floodplain information contained in said new report is consistent with the floodplain information entitled "Flood Hazard Boundary Map, Lake County, Colorado, Unincorporated Area," dated October 18, 1977 and as presented in Resolution No. 408, dated March 13, 1996; and WHEREAS, the City of Leadville, Colorado has requested the Colorado Water Conservation Board to designate and approve the approximate floodplain information within the incorporated areas of the City; and WHEREAS, Section 37-60-106(l)(c), Colorado Revised Statutes, requires the Colorado Water Conservation Board to assist in the prevention of floods and flood damages therefrom; and WHEREAS, Sections 31-23-301 and 30-28-111, Colorado Revised Statutes, provide that legislative bodies of local jurisdictions may provide zoning regulations for land uses on or along any storm or floodwater runoff channel or basin only after designation and approval by the Colorado Water Conservation Board; and WHEREAS, Section 37-60-106(l)(c), Colorado Revised Statutes, directs the Colorado Water Conservation Board to designate and approve storm or floodwater runoff channels or basins and to make such designations available to legislative bodies of local jurisdictions; and WHEREAS, the information in said new report with included mapping for California Gulch meets all of the requirements for approximate information listed under the Board's "Rules and Regulations for the Designation and Approval of Floodplains and of Storm or Floodwater Runoff Channels in Colorado" (2 CCR 408-1); and WHEREAS, the City of Leadville is hereby notified that the streams that have drainage areas that fall outside of the acceptable size range, lakes, ponds, local drainage areas, and irrigation ditches may be designated as approximate floodplain information without a procedure for estimating 100-year peak flows, as long as the local government understands and agrees that a detailed hydrologic and hydraulic study will be performed by a professional engineer and provided by the developer or proponent of the floodplain development activity prior to any floodplain development; and WHEREAS, Colorado Water Conservation Board has determined that the hydrologic methodology developed in the Guidelines for Determining lOO-Year Flood Flows for Approximate Floodplains is appropriate for designation and approval of approximate floodplain information and for use in simple floodplain analyses for development such as open 2