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<br />2 <br /> <br />" <br /> <br />. <br /> <br />The existing conditions model is based on updated topographic information and extends from the confluence <br />of Sampson Gulch with Piney Creek to approximately 5,300 feet upstream. The proposed conditions model <br />incorporates the in-line, regional water-quality pond and the above-mentioned RCPs and RCB into the <br />existing conditions model. <br /> <br />Our comparison of the existing conditions model to the information shown on the effective FIRM revealed <br />that the width of the SFHA increased in some areas and decreased in other areas from the confluence with <br />Piney Creek to approximately 4,500 feet upstream. <br /> <br />Our comparison of the proposed conditions model to the existing conditions model revealed that, as a result <br />ofthe proposed project, the water-surface elevations (WSELs) associated with the base flood and the width <br />of the SFHA will increase in some areas and decrease in other areas along Sampson Gulch from the <br />confluence with Piney Creek to approximately 4,500 feet upstream. The maximum increase in base flood <br />WSEL, 4.7 feet, will occur approximately 2,300 feet upstream of the confluence with Piney Creek. The <br />maximum decrease in base flood WSEL, 0.8 foot, will occur approximately 4,500 feet upstream of the <br />confluence with Piney Creek. All increases in base flood WSEL will occur on property owned by the <br />developer. <br /> <br />Our comparison of the proposed conditions model to the information shown on the effective FIRM revealed <br />that, as a result of the proposed project and updated topographic information, the width of the SFHA will <br />increase in some areas and decrease in other areas from the confluence with Piney Creek to approximately <br />4,500 feet upstream. <br /> <br />Upon completion of the project, your community may submit the data listed below and request that we make <br />. a final determination on revising the effective FIRM and FIS report. <br /> <br />. <br /> <br />Detailed application and certification forms, which were used in processing this request, must be <br />used for requesting final revisions to the maps. Therefore, when the map revision request for the <br />area covered by this letter is submitted, Form 1, entitled "Revision Requester and Community <br />Official Form," must be included. (A copy of this form is enclosed.) <br /> <br />. <br /> <br />Form 7, entitled "Bridge/Culvert Form," may be required if as-built conditions differ from the <br />preliminary plans. If required, please submit new forms (copies enclosed) or annotated copies of <br />the previously submitted forms showing the revised information. <br /> <br />. <br /> <br />Effective June 1, 2000, FEMA revised the fee schedule for reviewing and processing requests for <br />conditional and final modifications to published flood information and maps. In accordance with <br />this schedule, the current fee for this map revision request is $3,400 and must be received before we <br />can begin processing the request. Please note, however, that the fee schedule is subject to change, <br />and requesters are required to submit the fee in effect at the time of the submittal. Payment of this <br />fee shall be made in the form of a check or money order, made payable in U.S. funds to the National <br />Flood Insurance Program, or by credit card. The payment must be forwarded to the following <br />address: <br /> <br />. <br /> <br />Federal Emergency Management Agency <br />Fee-Collection System Administrator <br />P.O. Box3173 <br />Merrifield, VA 22116-3173 <br />