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- U.S. Geological Survey5
- Pennsylvania Bureau of Topographic and Geologic Survey, Dept. of Conservation and Natural Resources3
- Allegheny County Division of Computer Services Geographic Information Systems Group2
- City of Philadelphia Water Department - Information Systems Technology2
- Delaware Valley Regional Planning Commission1
- Environmental Resources Research Institute1
- Federal Emergency Management Agency1
- National Aeronautics and Space Administration (NASA) National Imagery and Mapping Agency (NIMA) German Aerospace Center (DLR) Italian Space Agency (ASI)1
- U.S. Geological Survey (USGS), EROS Data Center1
- USDA Forest Service, Northeastern Area State and Private Forestry1