FLOOD07489

• County: Statewide
• Basin: Statewide
• Title: Appeals, Revisions, and Amendments to Flood Insurance Maps - A Guide for Community Officials
• Date: 1/1/1990
• Prepared By: FEMA
• Floodplain - Doc Type: Historic FEMA Regulatory Floodplain Information

Scientifically Incorrect BFEs--Appeals
Based on Contention That Methodology
Is Inappropriate or Incorrect

To show that an inappropriate or incorrect
hydrologic methodology has been used, the
appellant must submit the following data:

. New hydrologic analysis based on an
alternative methodology

. Explanation for superiority of alternative
methodology

. New hydraulic analysis based on flood
discharge values from new hydrologic
analysis

. Revised flood profiles

. Revised delineations of floodplain and
floodway boundaries

To show that an inappropriate or incorrect
hydraulic methodology has been used, the
appellant must submit the following data:

. New hydraulic analysis based on
alternative methodology and original
ilootl tlischafge "alues

. Explanation for superiority of alternative
methodology

. Revised flood profiles

. Revised delineations of floodplain and
floodway boundaries

Technically Incorrect BFEs

Appeals Based on Contention That
Methodology Has Not Been Applied Correctly

To show that the hydrologic methodology was
not applied correctly, the appellant must submit
the following data:

. New hydrologic analysis in which
original methodology has been applied
differently

. Explanation for superiority of new
application

. New hydraulic analysis based on flood
discharge values from new hydrologic
analysis

. Revised flood profiles

. Revised delineations of floodplain and
floodway boundaries

To show that the hydraulic methodology was
not applied correctly, the appellant must submit
the following data:

. New hydraulic analysis, based on original
flood discharge values, in which original
methodology has been applied
differently

. Explanation for superiority of new
application

. Revised flood profiles

. Revised delineations of floodplain and
floodway boundaries

Appeals Based on Contention That Insufficient
or Poor-Quality Data were Used

To show that insufficient or poor-quality
hydrologic data were ~sed, the appellant must
submit the following data:

. Data believed to be better than those
used in original hydrologic analysis

. Documentation for source of data

. Explanation for improvement resulting
from use of new data

. New hydrologic analysis based on better
data

. New hydraulic analysis based on flood
discharge values resulting from new
hydrologic analysis

. Revi sed flood p(ofil es

. Revised deline"tions of floodplain and
floodway boundaries

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