DGS has maintained a network of wells that are used for groundwater level and quality observations since the 1960s. Consultants, government agencies, researchers, and well drillers use these data to evaluate groundwater availability, chemical characteristics, contamination, and other issues.
Did you know that DGS offers real-time groundwater level data? This service, operated in collaboration with the Delaware Environmental Observing System (DEOS) and the Delaware Solid Waste Authority (DSWA) has been available for several years.
Monitoring wells and groundwater sensors were installed and monitored in and around Holts Landing State Park on the Indian River Bay, eastern Sussex County, Delaware, between October 2009 and August 2012. Data from test drilling, geophysical logging, geophysical surveys, and well testing characterized the hydrogeological framework and spatial and temporal patterns of water pressure, temperature, and salinity in the shallow, unconfined Columbia aquifer. The work revealed a plume of freshened groundwater extending more than 650 ft into the bay from the shoreline.