Geohydrology and Ground-Water Quality, Big Elk Creek Basin, Chester County, Pennsylvania, and Cecil County, Maryland

摘要

This report presents and interprets groundwater quantity and quality data for the Big Elk Creek Basin in Chester County, Pa., and Cecil County, Md. The report focuses primarily on the Pennsylvania part of the basin. The report describes the geohydrology of aquifers in the basin and presents a summary of ground-water quality. Basin water budgets for the calendar years 1998 and 1999 are presented using streamflow data from the USGS streamflow-measurement station on Big Elk Creek and ground-water-level and precipitation data collected for this study.