The U. S. Geological Survey (USGS) will conduct simulations using existing aquifer data, including geologic logs from vertical profile borings (VPBs) and well installations, water levels, and pump test data available from the water districts for these production wells. Subsequently USGS will incorporate data from a groundwater pump test and additional data from new VPBs and monitoring wells. Using particle tracking maps, USGS will illustrate the spatial configuration of the capture zone and percentage of capture of the shallow and deep plumes in each production well. The model area will be limited to achieve these objectives and make maximum use of available sampling locations in the region.
USGS will also conduct three more simulations of changed conditions or configurations that will be based on the findings of the initial modeling. Examples of changed conditions could include a theoretical increase or decrease in the pumping rates of the production wells or a theoretical change in the screened interval of the production wells.
Project Location by County
Nassau County, NY
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“Groundwater conditions at Naval Weapons Industrial Reserve Plant, Bethpage, NY”
“conditional realization of Magothy aquifer heterogeneity in reg. gw flow model ”