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Chester County FEMA 100 Year Flood Zones

Published by Chester County GIS | City of Philadelphia | Catalog Last Checked: May 11, 2026 at 04:35 PM | Dataset Last Updated: January 03, 2018
The FEMA 100 Year Flood Zones layer contains flood zone values A, AE and AO.  This data layer is FEMA's official National Flood Hazard Layer for Chester County.  The effective date is 9/29/2017.

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