CRBCZO -- Groundwater Depth -- USGS -- Chester County, PA -- (1951-2015)

The U.S. Geological Survey maintains a network of observation wells to measure changes in water level in Chester County in cooperation with the Chester County Water Resources Authority. The water level in these wells is measured monthly. The data are used for drought prediction and management, monitoring the water table in different aquifers and different parts of Chester County, and monitoring and assessing the effects of urbanization on the water table.
Date Range Comments: mostly monthly, a few measurements were weekly