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. . . PREFACE This Floodplain Information Report (FIR) is part of a program by the Colorado Water Conservation Board (CWCB) to make approximate floodplain maps prepared by the Federal Emergency Management Agency (FEMA) easier for local governments to use. This CWCB report provides limited engineering information to support the approximate delineations on the FEMA map, and it provides floodplain management information to guide the local governments in the use of the map. The official floodplain information for the Town of Wiley is the Flood Insurance Rate Map (FIRM), dated October 6, 2000. The map does not include any engineering information to describe the basis of the approximate floodplain mapping. The initial purpose of this report, therefore, is to provide the Town with limited supporting information for the approximate floodplain delineations. This FIR includes a description of available hydrologic information for the major flooding source within the Town. In addition, the FIR gives the Town some basic information about floodplain management and it provides some alternatives that could be considered in formulating and implementing floodplain management objectives. A second function of this report is to assure that the FIRM meets the basic technical requirements for designation and approval by the CWCB. Without the inclusion of basic engineering information, the approximate floodplain delineations shown on the Wiley FIRM cannot qualify for CWCB designation. Colorado statutes require that local governments obtain from the CWCB the designation and approval of floodplain information for its use in regulatory purposes. This FIR provides a means for the FHBM to meet that statutory objective. As new and more detailed floodplain information becomes available and is submitted to FEMA, the approximate floodplain areas shown on the FIRM will be revised. The CWCB will designate and approve new information, and rescind old information as appropriate.