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Data

Updating Pennsylvania Streamgage Datums

USGS is updating streamgage datums to reflect elevations in North American Vertical Datum of 1988 (NAVD88)

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Pennsylvania Groundwater Watch

Interactive map of groundwater levels at 108 sites in Adams, Chester, Montgomery, Philadelphia, and Pike Counties

Launch Web Tool

First-of-its-Kind Survey of PFAS in Pennsylvania Surface Waters

In collaboration with the Pennsylvania Department of Environmental Protection

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National Water Dashboard

Explore real-time water data in context with current weather and hazard conditions

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Groundwater Levels

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Water Quality

NWIS Real-Time Data

Streamflow

NWIS Real-Time Data

USGS Pennsylvania Water Science Center operates about 580 real-time data collection sites acquiring information on surface water, groundwater, water quality, precipitation and ecosystem health. Data, including models, are also published for cooperative monitoring systems and investigative studies.

See Web Tools for accessing real-time and other selected data through interactive map apps.

Web Tools

National Water Dashboard

Screen shot of National Water Dashboard showing map of Pennsylvania

View over 13,000 USGS real-time stream, lake, reservoir, precipitation, water quality & groundwater stations in context with current weather & hazard conditions.

Water Dashboard

Current Conditions

Map of NWIS streamflow conditions in Pennsylvania

National Water Information System

Streamflow || Groundwater || Water Quality 

Current Conditions

Hydrologic Toolbox

Pennsylvania Groundwater Watch
Filter Total Items: 80

Data for salinity regressions and total dissolved solids calculations in groundwater in the United States Data for salinity regressions and total dissolved solids calculations in groundwater in the United States

Groundwater salinity impacts water quality and limits usability for drinking, irrigation, and industrial purposes where salinity is high. Salinity is a measure of the mass of dissolved salts in a given volume of solution and is closely related to the concentration of Total Dissolved Solids (TDS) as well as the ability of water to conduct electricity, or specific conductance (SC)...
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Pennsylvania Water Science Center

Estimates of Deicing Salt Application across States Encompassing the Delaware River Basin, United States, 2001-2023 Estimates of Deicing Salt Application across States Encompassing the Delaware River Basin, United States, 2001-2023

This data release contains three different estimates of road deicing salt applications, which utilize different sources of deicing salt data, and climate, land cover, and imperviousness data to provide spatially distributed estimates of deicing salt application for states covering the Delaware River Basin from water and calendar years 2001 through 2023 at a 30-meter spatial resolution...
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Water Resources Mission Area, Pennsylvania Water Science Center

River Depth, Water Velocity, and Direction at Three Locations Collected in 2021 and 2022 on the Allegheny River Downstream of the Kinzua Dam, Pennsylvania River Depth, Water Velocity, and Direction at Three Locations Collected in 2021 and 2022 on the Allegheny River Downstream of the Kinzua Dam, Pennsylvania

This dataset contains river depth, water velocity, and direction data at three focal areas of research included in the Sustainable Rivers Program (SRP) in the Allegheny River on three dates in 2021 and 2022, at two different river conditions (10,500/10,800 cubic feet per second (cfs) and 6,600 cfs as recorded at USGS gage Allegheny River at West Hickory - 03016000). Data was collected...
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Pennsylvania Water Science Center

Discharge measurements, air temperature, water temperature, and gage height data for select stream monitoring locations across Pennsylvania and Maryland piedmont mixed agriculture 2023 Discharge measurements, air temperature, water temperature, and gage height data for select stream monitoring locations across Pennsylvania and Maryland piedmont mixed agriculture 2023

As part of a larger study examining stream conditions and the effect of best management practices in the Chesapeake Bay watershed, thirty small streams across the Pennsylvania and Maryland piedmont physiographic province were instrumented and monitored for gage height (water level), water temperature, and air temperature using Onset HOBO sensors from March to September 2023. In addition...
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Chesapeake Bay Activities, Pennsylvania Water Science Center

Groundwater Levels, Precipitation, and Soil Moisture Data from DE 723 Delaware County Observation Well, Delaware County, Pennsylvania (2022-2024) Groundwater Levels, Precipitation, and Soil Moisture Data from DE 723 Delaware County Observation Well, Delaware County, Pennsylvania (2022-2024)

As part of the U.S. Geological Survey's (USGS) Next Generation Water Observing System (NGWOS) efforts in the Delaware River Basin (DRB), a soil moisture sensing testbed was established at USGS Delaware County Observation Well - DE 723 located in a managed meadow setting in Glen Mills, PA. Traditional in situ soil moisture sensors, a remote sensing cosmic ray neutron sensor (CRNS), and...
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Pennsylvania Water Science Center

Distance to the nearest stream by stream order for selected watersheds in the United States Distance to the nearest stream by stream order for selected watersheds in the United States

​Accurate representation of stream networks at various scales in a hydrogeologic system is integral to modeling groundwater-stream interactions at the continental scale. To assess the accurate representation of stream networks, the distance of a point on the land surface to the nearest stream (DS) has been calculated. DS was calculated from the 30-meter Multi Order Hydrologic Postion...
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Pennsylvania Water Science Center

Water-quality data for selected small tributaries to the Upper Delaware Scenic and Recreational River, Pennsylvania and New York, 2012-2015 Water-quality data for selected small tributaries to the Upper Delaware Scenic and Recreational River, Pennsylvania and New York, 2012-2015

The U.S. Geological Survey (USGS) collected stream samples at 19 sites in tributaries to the Upper Delaware Scenic and Recreational River during 2012-15 in cooperation with the National Park Service (NPS) through the USGS-NPS Water-Quality Partnership to provide data on existing water-quality in small watersheds not previously characterized and where there was potential for...
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National Water Quality Program, Pennsylvania Water Science Center

Assessment of Hydrologic Trends in Pennsylvania Assessment of Hydrologic Trends in Pennsylvania

The U.S. Geological Survey (USGS) in cooperation with the Pennsylvania Department of Conservation and Natural Resources (PA DCNR), Bureau of Geological Survey, provides time series trends results using the Mann Kendall family of analyses on select sites across Pennsylvania for baseflow, runoff, groundwater levels, and streamflow percentiles. Trend results for baseflow and runoff at 197...
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Pennsylvania Water Science Center

Statistical predictions of groundwater levels and related spatial diagnostics for the Mississippi River Valley alluvial aquifer from the mmlMRVAgen1 statistical machine-learning software Statistical predictions of groundwater levels and related spatial diagnostics for the Mississippi River Valley alluvial aquifer from the mmlMRVAgen1 statistical machine-learning software

A multiple machine-learning model (Asquith and Killian, 2024) implementing Cubist and Random Forest regressions was used to predict monthly mean groundwater levels through time for the available years described in the metadata for the Mississippi River Valley alluvial aquifer (MRVA). The MRVA is the surficial aquifer of the Mississippi Alluvial Plain (MAP), located in the south-central...
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Pennsylvania Water Science Center

Data in support of flow statistics for the Delaware River Basin Data in support of flow statistics for the Delaware River Basin

The U.S. Geological Survey (USGS) operates a dense network of streamgages within the Delaware River Basin (DRB) that provides near real-time and daily mean streamflow values, many of which have a decades long period of record. This long-term, historical dataset of daily mean streamflows is crucial for prediction of flows at ungaged stream reaches by means of parameter-based regression...
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Pennsylvania Water Science Center

Calibration data and model archive summaries for suspended-sediment, total nitrogen, and total phosphorus concentration surrogate models at USGS station 01575900, Chiques Creek near Marietta, Pennsylvania, 2021-2023 Calibration data and model archive summaries for suspended-sediment, total nitrogen, and total phosphorus concentration surrogate models at USGS station 01575900, Chiques Creek near Marietta, Pennsylvania, 2021-2023

The U.S. Geological Survey (USGS), in cooperation with the U.S. Department of Agriculture Natural Resources Conservation Service (USDA NRCS) has collected discrete stream samples for analysis of suspended-sediment, total nitrogen, and total phosphorus at the real-time streamflow and water-quality monitoring (turbidity and nitrate) station 01575900, Chiques Creek Near Marietta...
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Pennsylvania Water Science Center

River stage and temperature dataset for 2021-2024 collected for U.S. Army Corps of Engineers downstream of the Kinzua Dam, Pennsylvania. River stage and temperature dataset for 2021-2024 collected for U.S. Army Corps of Engineers downstream of the Kinzua Dam, Pennsylvania.

This dataset contains river stage (in meters and feet), water surface elevation (WSE), and temperature data collected at 3 focal areas of research included in the Sustainable Rivers Program (SRP) in the Allegheny River that were collected and processed in collaboration with US Army Corps of Engineers (USACE). This dataset is a combination of data collected by Hobo* U20L water level data...
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Pennsylvania Water Science Center
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