Pennsylvania Water Science Center


USGS Waterwatch:
Maps of Current Conditions

Pennsylvania Streamstats

Delineate watersheds and estimate streamflow

National Water Information System (NWIS)

View current and historical streamflow, groundwater level, and water-quality data for Pennsylvania

Real-time data

Historical data


Interpretive Studies of Pennsylvania Water Resources

The Pennsylvania Water Science Center conducts hydrologic investigations that support statewide water-resource infrastructure and management needs and are part of the USGS Science Strategy to address major natural-science issues facing the nation.

Water-Resources Topics

Surface WaterSurface Water

— Pennsylvania streamflow characteristics, drought monitoring, watershed and flood models, and scour below bridges over streams.


— Recharge to aquifers, research on fractured rock, effects of Pymatuning earthquake, and viruses and bacteria in domestic wells in Pennsylvania.

Water QualityWater Quality

— Natural and man-made contaminants and studies of management approaches to protect Pennsylvania source waters.


— Migration of stray gas, drainage from coal mines, and impacts of drilling and mining on Pennsylvania's waters.


— Studies and assessments of specific water-resources issues in Pennsylvania. Technial assistance for monitoring and improving water resources with our partners.

You can also browse a list of studies in Pennsylvania.

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