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Web Tools

Web Tools provide interactive access to USGS information about Pennsylvania's water resources.

Pennsylvania Real-Time Water Quality

Real-time computed concentrations of water-quality constituents such as suspended sediment and fecal coliform bacteria are calculated using ordinary least squares regression models. The results of these models, along with direct water-quality measurements, can be viewed here as time-series graphs, or downloaded as tabular data.

Pennsylvania Drought Condition Monitoring

The Pennsylvania Drought Condition Monitoring Application shows the current drought status for each county and hydrologic conditions for precipitation, streamflow, groundwater levels, and Palmer Drought-Severity Index used by PA DEP for drought monitoring.

Pennsylvania Groundwater Quality Monitoring Network

USGS Pennsylvania Water Science Center, in cooperation with the Pennsylvania Department of Environmental Protection, samples 28 wells biannually to monitor ambient groundwater quality conditions in a variety of settings throughout Pennsylvania. The most recent results for selected constituents can be accessed through the Groundwater Quality Monitoring Network Web Tool, which includes an interactive map with user selectable results.

Pennsylvania StreamStats

StreamStats is a national web-based application that provides selected water-resource information for Pennsylvania. Users can easily obtain descriptive information, basin characteristics, and streamflow statistics for USGS streamgages and ungaged stream locations throughout the Commonwealth. Water use data is also available for Pennsylvania in StreamStats.

Philadelphia Water Quality Monitoring Network

The Philadelphia Water Department (PWD) and USGS have been working together to create and expand the water-quality monitoring network for Philadelphia. Data from these gaging stations will allow PWD scientists and engineers to monitor spatial and temporal water quality/quantity trends in the City in support of watershed restoration initiatives occurring within the City. 

2012 SPARROW Models for the Northeast: Total Phosphorus, Total Nitrogen, Suspended Sediment, and Streamflow

2012 SPARROW (SPAtially Referenced Regressions On Watershed attributes) interactive mappers are available for 5 regions of the conterminous U.S. These mappers simulate river streamflow, and nutrient and sediment loads and yields, that would occur under long-term average hydrologic conditions for the time period 1999 through 2014, and source inputs that occurred during or near 2012.

Philadelphia Area Groundwater Level Network

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

Flood Inundation Mapper - Pennsylvania

USGS Flood Inundation Mapper Web Application

Groundwater Recharge in Pennsylvania

A map app to get recharge values from streamgage locations in Pennsylvania. Development of this app is described at the Related Science page.