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.

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Pennsylvania Groundwater Watch

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December 22, 2020

Data in support of Pennsylvania StreamStats upgrade to the basin delineation database

In cooperation with the Federal Emergency Management Agency, Pennsylvania Department of Environmental Protection, Pennsylvania Department of Transportation, and Susquehanna River Basin Commission, the U.S. Geological Survey (USGS) has compiled a series of GIS datasets for Pennsylvania to be implemented into the USGS StreamStats application. These data were compiled from the high definition Nationa

Pennsylvania Water Science Center

December 22, 2020

Data used to evaluate arsenic and uranium occurrence in Connecticut groundwater through spatially weighted and bedrock geology assessments

This data release contains two spatial datasets and a data table in support of an evaluation of arsenic and uranium occurrence in Connecticut groundwater through spatially weighted and bedrock geology assessments. Spatial datasets include 1) a shapefile of 130 equal-area grid cells with associated arsenic attribute data, and 2) a shapefile of 110 equal-area grid cells with associated uranium att

Pennsylvania Water Science Center

December 22, 2020

Water-level data and selected field notes for aquifer-interval-isolation tests at and near the former Naval Air Warfare Center Warminster, Bucks County, Pennsylvania, 2018-19 (ver. 2.0, January 2024)

The U.S. Geological Survey (USGS) conducted aquifer interval isolation (packer) tests of discrete water-bearing zones using straddle packers in 13 wells in Northampton, Warminster, and Warwick Townships and Ivyland Borough, Bucks County, Pennsylvania during 2018-19 to support detailed groundwater investigations at and near the former Naval Air Warfare Center (NAWC) Warminster, where groundwater co

Pennsylvania Water Science Center

Philadelphia Area Groundwater Level Network

The Philadelphia Water Department (PWD) and USGS worked together on the groundwater level monitoring network for Philadelphia.

Pennsylvania Water Science Center

September 2, 2020

Basin Characteristics Rasters for Pennsylvania StreamStats 2020

In cooperation with the Federal Emergency Management Agency, the Pennsylvania Department of Transportation, the Pennsylvania Department of Environmental Protection, and the Susquehanna River Basin Commission, the U.S. Geological Survey (USGS) calculated over 20 different basin characteristics as part of preparing the Pennsylvania StreamStats 2020 application. These datasets are raster representati

Pennsylvania Water Science Center

September 2, 2020

Data in Support of Development of Regression Equations for the Estimation of Flood Flows at Ungaged Streams in Pennsylvania (ver. 2.0, August 2020)

Roland, M.A., Stuckey, M.H., and Gross, E.L. 2019, Data in Support of Development of Regression Equations for the Estimation of Flood Flows at Ungaged Streams in Pennsylvania (ver. 2.0, August 2020): U.S. Geological Survey data release, https://doi.org/10.5066/P9YHIU6G.

Pennsylvania Water Science Center

March 26, 2020

Water Velocity Magnitude and Direction Collected on May 8-9, 2019 at Select Breakwaters in Lake Erie at Presque Isle State Park, Erie, PA

Background: Presque Isle State Park (PISP), located in northwestern Pennsylvania, is located on a 3,127 acre peninsula that extends into Lake Erie. Approximately 7 miles long, PISP is a recurving sand spit where the width of the neck is less than 1,000 feet and the center, eastern end exceeds 1 mile. The park boundary extends 500 feet offshore around the perimeter of the peninsula. The spit forms

Pennsylvania Water Science Center

February 25, 2020

Compiled data for groundwater levels, groundwater withdrawals by wells and quarries, and point-source discharges to streams in the vicinity of Willow Grove and Warminster, Bucks and Montgomery Counties, Pennsylvania, for selected years during 1999-2017

This USGS Data Release includes hydrologic data compiled for selected years during the period 1990-2017 to support the development and calibration of a numerical groundwater model used to simulate groundwater flow paths at and near former and currently active military bases in Montgomery and Bucks Counties in southeastern Pennsylvania (Goode and Senior, 2020). The hydrologic data compiled for the

Pennsylvania Water Science Center

February 25, 2020

Archival data sets for regressions to estimate continuous streamflow, turbidity, and suspended sediment in support of study evaluating effects of removal of legacy sediment at Big Spring Run, Lancaster County, Pennsylvania, 2009-2015

The stream corridor at the Big Spring Run restoration site has been identified as a substantial source of sediment and nutrients to streams due to streambank erosion and floodplain scour of legacy sediment. Three USGS streamgages were installed and water-quality monitoring began in water year 2009, prior to the legacy sediment removal from the restoration area. The legacy sediment was removed from

Pennsylvania Water Science Center

February 25, 2020

Data collected and sediment loads estimated in support of study evaluating effects of removal of legacy sediment at Big Spring Run, Lancaster County, Pennsylvania, 2009-2015

Pennsylvania Water Science Center

February 6, 2020

Data in support of Development of Regression Equations for the Estimation of Flood Flows at Ungaged Streams in Pennsylvania

Regression equations, which may be used to estimate flood flows at select annual exceedance probabilities, were developed for ungaged streams in Pennsylvania. The equations were developed using annual peak flow data through water year 2015 and basin characteristics for 285 streamflow gaging stations across Pennsylvania and surrounding states. The streamgages included active and discontinued contin

Pennsylvania Water Science Center

February 5, 2020

MODFLOW 6 and MODPATH 7 model data sets used to evaluate groundwater flow in the vicinity of Horsham and Warminster, Bucks and Montgomery Counties, Pennsylvania-Preliminary simulations for conditions in 1999, 2010, 2013, 2016, and 2017

In cooperation with the U.S. Navy, USGS developed and calibrated a numerical MODFLOW 6 model to simulate regional groundwater flow under selected conditions during 1999-2017 at and near the former Willow Grove Naval Air Station Joint Reserve Base in Horsham, Montgomery County and the former Naval Air Warfare Center Warminster in Bucks County, Pennsylvania. The model simulations provide information

Pennsylvania Water Science Center