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Description: Floodplain delineation is based on the watershed studies using ultimate land-use conditions and therefore usually extends beyond the FEMA floodplain which is based on existing land-use conditions. The data covers studies from Beaverdam creek, Anacostia, Henson, Oxon, Piscataway, and Charles and the studies were either conducted by or for the Storm Water Management Technical Group, originally a multi-agency technical group (doing hydrologic and hydraulic watershed studies). Watershed studies for Tinkers and Western using ultimate landuse but have never been converted to a digital format. Salman (DPIE) compares floodplains (FEMA , SWMTG or other private study) and determines which one is higher and therefore governs which becomes the regulatory floodplain. This can vary within a watershed, for any specific case, the final regulatory floodplain determination lies with DPIE. For further information, please contact Salman Babar (subabar@co.pg.md.us) at Prince George's County Department of Permitting, Inspections and Enforcement (DPIE) in the Site/Road Review Division (301-636-2060).

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