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Federal Emergency Management Agency Washington, D.C. 20472 CERTIFIED MAIL RETURN RECEIPT REQUESTED IN REPLY REFER TO: Case No.: 99-08-399P The Honorable Nancy M. Heil Mayor, City of Westminster 4800 West 92nd Avenue Westminster, CO 80031 Community: City of Westminster, CO Community No.: 080008 Panel Affected: 0006 C E~ective.~ate of AUG 07 2000 ThIS RevISIOn: 102-I-C Dear Mayor Heil : This responds to a request that the Federal Emergency Management Agency (FEMA) revise the effective Flood Insurance Rate Map (FIRM) for your community in accordance with Part 65 of the National Flood Insurance Program (NFIP) regulations. In a letter dated August 9, 1999, Mr. Kevin Co Ivett, E.!., Department of Community Development, City of Westminister, requested that FEMA revise the FIRM to show the effects of excavation and placement offill along the north overbank of Big Dry Creek from just downstream to approximately 650 feet downstream of Wadsworth Boulevard. This request follows up on a Conditional Letter of Map Revision issued on December 29, 1998. All data required to complete our review of this request were submitted with letters from P.E., Director of Operations, and P.E., Division Manager, both with JR Engineering, and Mr. Colvett. We have completed our review of the submitted data and the flood data shown on the effective FIRM. We have revised the FIRM to modify the floodplain boundary delineations of the flood having a I-percent chance of being equaled or exceeded in any given year (base flood) along the north overbank of Big Dry Creek from just downstream to approximately 650 feet downstream of Wadsworth Boulevard. As a result of the modifications, the width of the Special Flood Hazard Area (SFHA), the area that would be inundated by the base flood, for Big Dry Creek increased in some areas and decreased in other areas. All increases in SFHA width occurred within the requester's property. The modifications are shown on the enclosed annotated copy of FIRM Panel(s) 0006 C. This Letter of Map Revision (LOMR) hereby revises the above-referenced panel(s) of the effective FIRM dated April 2, 1997. The modifications are effective as of the date shown above. The map panel(s) as listed above and as modified by this letter will be used for all flood insurance policies and renewals issued for your community. A review of the determination made by this LOMR and any requests to alter this determination should be made within 30 days. Any request to alter the determination must be based on scientific or technical data. We will not physically revise and republish the FIRM and Flood Insurance Study (FIS) report for your community to reflect the modifications made by this LOMR at this time. When changes to the previously cited FIRM panel(s) and FIS report warrant physical revision and republication in the future, we will incorporate the modifications made by this LOMR at that time.