Recently, the USGS has published geonarratives describing the biological and sediment components of this monitoring. 

The geonarrative titled “Stream conditions monitoring network in Chester County, PA” describes The Chester County Stream Conditions Biological Monitoring Network, which was established in 1969 as the first piece of the Chester County - U.S. Geological Survey Cooperative Water Resources Program. Every year during the fall, when streams are near their annual low streamflow, sampling occurs to assess stream water quality and understand stream changes in response to landscape changes over time. This geonarrative gives a brief history of the program, describes the various components of the program, and provide links to the published data and reports. 

The geonarrative titled “Assessing stream sediment conditions in Chester County, PA” describes the Chester County Sediment Monitoring Network, which began in 2007. In this geonarrative, you can explore the sediment network in more detail, including sediment and turbidity monitoring information, data that has been collected, and models that have been created to estimate suspended-sediment concentrations and loads. 

These products highlight the USGS commitment to collecting high-quality scientific data regarding Pennsylvania’s water resources. To view and interact with these tools, click the links in the text above. The publication of these products would not be possible without the diligent field and office work performed by USGS staff and collaboration with Chester County Water Resources Authority.