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Estimates of Baseflow, Runoff, and Ground-Water Recharge Base on Streamflow-Hydrograph Methods: Pennsylvania

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2023-10-06T00:00:00Z
The U.S. Geological Survey (USGS) in cooperation with the Pennsylvania Department of Conservation and Natural Resources (PA DCNR), Bureau of Geological Survey, provides estimates of groundwater recharge at 197 streamflow gaging stations where streamflow is relatively unaffected by regulation. Baseflow, runoff, and groundwater Recharge estimates were conducted via the Hydrologic toolbox by use of automated streamflow-hydrograph-analysis methods HySEP-Fixed, HySEP-LocMin, HySEP-Slide, PART, BFI-Standard, BFI-Modified, DF-One Param, DF-Two Param, and RORA.

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