USGS Groundwater Information
Groundwater Resources Program
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USGS Groundwater WatchUSGS maintains a network of active wells to provide basic statistics about groundwater levels. ![]() Other Water TopicsUSGS in Your StateUSGS Water Science Centers are located in each state. ![]() |
Water-Table Fluctuation (WTF) MethodRecent Case Studies of Water-Table Fluctuation MethodTable 1. Recent studies illustrate the application of this method -- click site name for details:
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