Monday, April 25, 2016: 1:40 p.m.
Confluence Ballroom B (The Westin Denver Downtown)
A. Scott Andres
,
Delaware Geological Survey, Newark, DE
Thomas E. McKenna, Ph.D
,
Delaware Geological Survey, Newark, DE
Changming He, Ph.D
,
Delaware Geological Survey, Newark, DE
David R. Wunsch, Ph.D., PG
,
Delaware Geological Survey, Newark, DE
John Callahan
,
Delaware Geological Survey, Newark, DE
The Delaware Geological Survey (DGS) has joined the National Ground-Water Monitoring Network (NGWMN) as a data provider. This new status is a logical outgrowth of the DGS’s service as an advisor to the Subcommittee on Ground Water (SOGW) and decades of operating and distributing groundwater data and interpretive products. DGS project staff have used NGWMN guidance criteria to select a subset of wells in use throughout Delaware for the national network, populated the NGWMN well registry, and created web services needed for the NGWMN portal to retrieve data.
DGS measures water levels as part of routine programs and special projects in 123 wells in two principal aquifers—North Atlantic Coastal Plain aquifer system and Piedmont and Blue Ridge Crystalline Rocks—and 13 major and local aquifers. An additional 50 wells operated by others have been evaluated for the network. More than 20 sites have nested monitoring wells completed in multiple aquifers to allow calculation of the potential for vertical flow between aquifers. Over 100 monitoring wells have 10 or more years of record. All of these wells have known construction details and nearly all have lithologic and downhole geophysical logs.
The DGS makes extensive use of automated water-level and salinity monitoring instruments to efficiently use limited resources, shorten the time needed to characterize the effects of pumping, and identify near real-time responses to climate and weather. Temperature and salinity data collected by these instruments will be added to the NGWMN water quality (WQ) network. The DGS has a long history with database systems. Starting with water-related schema and data vocabulary modeled after USGS WATSTORE in the 1980s, the system now manages data and metadata on lithologic and geophysical logs, rock and sediment samples, and distributes that data through web services in JSON and XML formats for consumption by the NGWMN.
A. Scott Andres, Delaware Geological Survey, Newark, DE
Scott Andres has worked as a hydrogeologist at the Delaware Geological Survey since 1984, and has a secondary faculty appointment in the Department of Geological Sciences at the University of Delaware. Recent research areas include watershed-scale assessments of nutrient loads, regional characterization and mapping of aquifers, integration of GIS tools into groundwater flow and transport models, and field studies and simulation of performance and groundwater impacts of soil aquifer treatment.
Thomas E. McKenna, Ph.D, Delaware Geological Survey, Newark, DE
Thomas McKenna is an associate professor of hydrogeology.
Changming He, Ph.D, Delaware Geological Survey, Newark, DE
Changming He is a groundwater modeling specialist at the University of Delaware. He has a Ph.D. from the University of Nevada at Reno, majoring in Hydrogeology. Then he worked as a postdoc in the University of California at Riverside. Before he joined the Delaware Geological Survey in 2007, he worked with a consulting company in Long Beach, California.
David R. Wunsch, Ph.D., PG, Delaware Geological Survey, Newark, DE
David R. Wunsch, Ph.D., is the Director and State Geologist of the Delaware Geological Survey. He formerly served as the Director of Science and Technology for NGWA. Wunsch has served on numerous committees for NGWA, and as an associate editor of the journal Groundwater. He served as President of the Association of American State Geologists (AASG), and represents AASG on the federal Advisory Committee for Water Information, and its Subcommittee on Ground Water. He is Licensed Professional Geologist in Kentucky, New Hampshire, and Delaware. Recently, Wunsch was awarded the American Geosciences Institute’s 2014 Outstanding Contribution to the Understanding of Geoscience award.
John Callahan, Delaware Geological Survey, Newark, DE
John Callahan is a scientist at the Delaware Geological Survey. He specialized in climate research.
