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Glossary/Acronyms
Select a letter from the list below to view glossary terms, acronyms/abbreviations, chemicals, and units of measure.
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U.S. Environmental Protection Agency
Unconfined aquifer
Unconsolidated (basin fill deposits)
Unconsolidated shore wetlands
Underflow
Understory
Unfaulted
United States Code (U.S.C.)
Unrest (episode)
Unstable slopes
Upland
Uplighting
Upper-air sounding
Upwarp
USGS
Utility scale facilities
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