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Final Dataset

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2020-08-13T00:00:00Z
This dataset contains the final water level records (10,132) that met all threshold criteria and had absolute residual (ABS_PSEUDO_LEV) of less than 20 feet. The threshold of 20 feet was selected based on water level changes of the U.S. Geological Survey groundwater site 363551090152801 Qulin in the Mississippi River Valley alluvial aquifer. This final dataset is considered a best representation of the true water levels in the aquifer.

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