DGS Reports of Investigations

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Browsing DGS Reports of Investigations by Author "Denver, J.M."

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    Effects Of Agricultural Practices And Septic-System Effluent On The Quality Of Water In The Unconfined Aquifer In Parts Of Eastern Sussex County, Delaware
    (Newark, DE: Delaware Geological Survey, University of Delaware, 1989-06) Denver, J.M.
    The unconfined aquifer is a major source of water supply in eastern Sussex County, Delaware. It also is an important source of water for surface-water bodies and deeper, confined aquifers. The aquifer consists mainly of permeable sand and gravel; its shallow water table is susceptible to contamination by nitrate and other chemical constituents associated with agricultural practices and effluent from septic systems.
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    Herbicides In Shallow Ground Water At Two Agricultural Sites In Delaware
    (Newark, DE: Delaware Geological Survey, University of Delaware, 1993) Denver, J.M.
    Several common herbicides used on corn and soybeans were detected in ground water at two agricultural sites in Delaware as part of a study of the distribution of herbicides in shallow ground water and the environmental factors affecting their occurrence.
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    Hydrogeology And Geochemistry Of The Unconfined Aquifer, West-Central And Southwestern Delaware
    (Newark, DE: Delaware Geological Survey, University of Delaware, 1986-06) Denver, J.M.
    The unconfined aquifer is the major source of water supply in west-central and southwestern Delaware. The aquifer, which is composed of quartz sand, gravel, clay, and silt, ranges in thickness from 20 to 200 feet. The water table ranges from land surface to about 20 feet below land surface. Analyses of water from wells distributed throughout the area were used to study processes controlling the chemical quality of the water in the unconfined aquifer.