groundwater monitoring

Groundwater response to extreme rainfall event – eastern Sussex County

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During an extreme rainfall event that occurred September 29-30, 2016, more than 12 inches in one day, caused the water table to rise over 5 feet near Harbeson, Delaware. A subsequent 3.6 inch storm on October 8 - 9 caused the water table to rise above land surface and flood the area for nearly 8 hours.

Delaware Geological Survey issues report on groundwater modeling in eastern Sussex County

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The Delaware Geological Survey (DGS) has released a new technical report titled Simulation of Groundwater Flow and Contaminant Transport in Eastern Sussex County, Delaware with Emphasis on Impacts of Spray Irrigation of Treated Wastewater, which was prepared by Changming He and A. Scott Andres of DGS.

DGS Report of Investigations No. 79 documents development of a detailed study of subsurface hydrogeology, interactions between aquifers and streams, and the effects of spray irrigation of treated wastewater on groundwater beneath southern eastern Sussex County.

RI79 Simulation of Groundwater Flow and Contaminant Transport in Eastern Sussex County, Delaware With Emphasis on Impacts of Spray Irrigation of Treated Wastewater

This report presents a conceptual model of groundwater flow and the effects of nitrate (NO3-) loading and transport on shallow groundwater quality in a portion of the Indian River watershed, eastern Sussex County, Delaware. Three-dimensional, numerical simulations of groundwater flow, particle tracking, and contaminant transport were constructed and tested against data collected in previous hydrogeological and water-quality studies.