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A retrospective analysis on the occurrence of arsenic in ground-water resources of the United States and limitations in drinking-water-supply characterizations
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Assessing ground-water vulnerability to contamination
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Documentation of geographic-information-system coverages and data-input files used for analysis of the geohydrology of the Virginia Coastal Plain
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Estimating net drawdown resulting from episodic withdrawals at six well fields in the coastal plain physiographic province of Virginia
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Occurrence of selected radionuclides in ground water used for drinking water in the United States
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Preliminary estimates of residence times and apparent ages of ground water in the Chesapeake Bay watershed, and water-quality data from a survey of springs
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Quality of ground water in the coastal plain physiographic province of Virginia
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