FLOOD11520

• County: Boulder
• Community: Lyons
• Stream Name: North Saint Vrain Creek
• Basin: South Platte
• Title: LOMR - Affected Panel 0232F - Case No. 08-08-0231A
• Date: 2/5/2008
• Prepared For: Boulder County
• Prepared By: FEMA
• Floodplain - Doc Type: Current FEMA Regulatory Floodplain Information

Page 2 of 2 I

I Date: February 05, 200S ICase No.: OS-08-0231A

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LOMR-FW

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Federal Emergency Management Agency
Washington, D.C. 20472,

LETTER OF MAP REVISION FLOODWA Y

DETERMINATION DOCUMENT (REMOVAL)
ATTACHMENT 1 (ADDITIONAL CONSIDERATIONS)

INADVERTENT INCLUSION IN THE FLOODWA Y 2 (NO PORTION OF THE PROPERTY IN THE
FLOODWAY) (This Additional Consideration applies to the preceding 1 Property.)
The National Flood Insurance Program (NFIP) regulatory f100dway is the area that must remain unobstructed in
order to prevent unacceptable increases in base flood elevations. Therefore, no construction may take place in
an NFIP regulatory f100dway that may cause an increase in the base flood elevation, and any future construction
or substantial improvement on the property remains subject to Federal, State/Commonwealth, and local
regulations for floodplain management. The NFIP regulatory f100dway is provided to the community as a tool to
regulate floodplain development. Therefore, the NFIP regulatory floodway modification described in the
Determination Document, while acceptable to the Federal Emergency Management Agency (FEMA), must also
be acceptable to the community and adopted by appropriate community action, as specified in Paragraph
60.3(d) of the NFIP regulations. Any proposed revision to the NFIP regulatory floodway must be submitted to
FEMA by community officials. The community should contact either the Regional Director (for those communities
in Regions I-IV, and VI-X), or the Regional Engineer (for those communities in Region V) for guidance on the data
which must be submitted for a revision to the NFl? regulatory floodway. Contact information for each regional
office can be obtained by calling the FEMA Map Assistance Center toll free at [phone] (877-FEMA
MAP) or from our web site at http://www.fema.gov/abouUregoff.htm.

REVISED BY LETTER OF MAP REVISION (This Additional Consideration applies to the
preceding 1 Property.)
The effective National Flood Insurance Program map for the subject property, has since been revised by a Letter
of Map Revision (LOMR) dated 2128/2007. The 2/28/2007 LOMR has been used in making the
determination/comment for the subject property.

STUDY UNDERWAY (This Additional Consideration applies to all properties in the LOMR-FW
DETERMINATION DOCUMENT (REMOVAL))
This determination is based on the flood data presently available. However, the Federal Emergency
Management Agency is currently revising the National Flood Insurance Program (NFIP) map for the community.
New flood data could be generated that may affect this property. When the new NFIP map is issued it will
supersede this determination. The Federal requirement for the purchase of flood insurance will then be based on
the newly revised NFIP map.

This attachment provides additional information regarding this request. If you have any questions about this attachment. please contact the
FEMA Map Assistance Center toll free at [phone] (877-FEMA MAP) or by letter addressed to the Federal Emergency Management
Agency, 3601 Eisenhower Avenue, Suite 130, Alexandria, VA 22304-6439.

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William R. Blanton Jr., CFM. Chief
Engineering Management Branch
Mitigation Directorate