Regional Synthesis of Groundwater Quality in Domestic Supply Wells in Northeast and North Central Pennsylvania

Science Center Objects

USGS is synthesizing groundwater quality measurements in wells to characterize regional chemical characteristics of aquifers used for domestic supply in northeast and north central Pennsylvania.

Independent county-wide groundwater quality investigations were completed during 2011-2017 by the USGS for seven counties in the northern tier of Pennsylvania where there is ongoing, or potential for, unconventional shale-gas development. The studies used consistent data collection and reporting procedures. County-level reports were published by the USGS that describe quality of water samples from home-owner wells in relation to human health and potential environmental factors affecting the groundwater composition. Potential spatial relations and distributions of data on a regional scale and comparisons among the county data sets have not been completed.

The objective of this project is to complete a regional synthesis of groundwater chemical characteristics for aquifers used for domestic supply in northeast and north central Pennsylvania. Available hydrochemical data from 436 domestic wells that were sampled during 2011-2017 and reported by the USGS for seven counties in the northern tier of Pennsylvania as part of county-wide assessments will be summarized and evaluated in relation to geology, land use, and other environmental factors, such as hydrogeologic setting. 

Map of baseline groundwater quality assessments in Pennsylvania

Map of baseline groundwater quality assessments in Pennsylvania

(Public domain.)