From the water we drink to the streams, lakes, and rivers in which we play, the conditions of Chester County’s water resources impact the lives of every resident. Clean streams and groundwater aquifers are essential to sustaining healthy and vibrant communities and maintaining the bucolic character of our stream corridors. Evaluating progress through monitoring of water quality determines whether or not we are maintaining or improving water resources.
Chester County Water Conditions 2019
The annual Water Conditions report presents a snapshot of Chester County’s water resources in 2019 and highlights select long-term water quality trends over the last 20 years. This 24-page reportsummarizes water conditions from January 2019 through December 2019, including rainfall, groundwater levels, stream flows, biotic diversity, nitrogen, phosphorus, chloride and public water use.
Sources: Data sources and references are available on this web page.
The 2019 report is also available in an 11x17 layoutshowing facing pages.
CCWRA has prepared resources specific to Chester County, including interactive maps where you can search and print custom maps, a series of published maps that illustrate different causes, an overview memo, GIS files, and links to background information and the PADEP report.
Chester County Water Quality Summary: Chloride Fact Sheet
This 4-page fact sheet provides data and discussion about increasing chloride levels in Chester County. Since the early 1970’s, chloride and specific conductance, among other parameters, have been monitored annually at the 18 sites. Chloride concentrations have steadily increased across Chester County’s watersheds.
Water Quality of Chester County Streams
(1998 - 2017)
Chester County and the U.S. Geological Survey (USGS) have had a cooperative water-resources program to measure and describe the water resources in Chester County since 1969. The purpose of this report is to present the water quality data collected as part of the Stream Conditions of Chester County Biological Monitoring Network from 1998 through 2017. The water quality data presented includes physical characteristics, pollutant concentrations and a score for the Biotic Integrity of the macro-invertebrates. The link above is for a .pdf file optimized for web viewing; you can also view or download a .pdf file optimized for printing.
Within the data report are 4-page summaries for each of the 18 Monitoring Stations - those are available here by monitoring station: