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Potentiometric Surface Datasets



The U.S. Geological Survey (USGS) Lower Mississippi-Gulf Water Science Center, in cooperation with multiple State and Federal agencies, collects water-level data as part of a larger initiative to monitor and evaluate the status of groundwater resources in our five-state area. The potentiometric-surface shows the altitude at which the water levels would have risen in tightly-cased wells and represents synoptic conditions. The potentiometric-surface map shows a 2-dimensional representation of groundwater flow in an aquifer and provides a basis for comparison between current and historic groundwater flow conditions. The maps can be used to show both water-table conditions for unconfined aquifers and artesian conditions for confined [...]

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  • USGS Lower Mississippi-Gulf Water Science Center


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