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USGS Annual Hydrologic Data Report of Pennsylvania

The annual hydrologic data report of Pennsylvania is one of a series of annual reports that document hydrologic data gathered from the U.S. Geological Survey's surface-water and ground-water data-collection networks in each State, Puerto Rico, and the Trust Territories. These records of streamflow, ground-water levels, and quality of water provide the hydrologic information needed by State, local, and Federal agencies, and the private sector for developing and managing our Nation's land and water resources.

Online data 2006-present

Map-based data selection

Text/Form data selection

Online data 1999-2005

Hydrologic data for Pennsylvania are contained in 3 volumes.

The links below will allow you to view those data, as published, by individual station or project. If data are needed in other than PDF format please go to the Water Resources Data for Pennsylvania page, or contact the USGS Pennsylvania Water Science Center Information Officer at (717) 730-6916.

Delaware River Basin

Susquehanna River Basin

Ohio River Basin


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