saltwater

John Callahan selected to the DRBC Advisory Committee on Climate Change

Date

DGS scientist John Callahan was selected as a member of the Delaware River Basin Commission (DRBC) Advisory Committee on Climate Change (ACCC).  John was selected as one of nine non-reserve members, to serve along with nine reserve members, to make up the 18-member committee.

RI80 Investigation of Submarine Groundwater Discharge at Holts Landing State Park, Delaware: Hydrogeologic Framework, Groundwater Level and Salinity Observations

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.