100-Year Flood Plain

An area that is inundated by a 100-year flood, which is a flood that has a one percent or greater chance of occurring in any given year, as determined from maps or other data from the Federal Emergency Management Administration (FEMA), or, if not mapped by FEMA, from the United States Department of Agriculture soil maps.

Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations

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