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United States Environmental Protection Agency
EPA Region Polygons (Detailed), U.S. and Territories, 2018, U.S. EPA Region 9
This polygon feature class contains boundaries of each of the ten U.S. EPA Region in the United States and Territories. This detailed feature class can be used for clipping and regional analyses.
Reference System Information
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Data Quality Information
Scope (quality information applies to):
Originally, a Dynamap(R)/2000 State Boundary file (a non-generalized polygon layer that represents all U.S. government-defined entities named State without a shoreline buffer) was used to create the EPA Regions. It included the District of Columbia and Puerto Rico. In the original feature class, Hawaii was miscategorized as Region 10. In 2018, the U.S. EPA Region 9 GIS/Technology Center updated the feature class to include the Pacific Islands as defined by the U.S. Census Bureau in the 2015 TIGER/Line shapefile and updated Hawaii to Region 9.
Administrative and Political Boundaries
Region 9 GIS/Technology Center
75 Hawthorne St.
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Metadata Reference Information
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