Loading of Nutrients to Groundwater From High Source Areas During the Winter Period

by Paul D. Robillard, Penn State Univ, University Park, United States,
Michael F. Walter, Penn State Univ, University Park, United States,

Document Type: Proceeding Paper

Part of: Water Resources Planning and Management: Saving a Threatened Resource—In Search of Solutions


Nutrient loading to surface, subsurface and groundwater in agricultural areas is the focus of control programs throughout the United States. In certain cases, high source areas can be identified and intensive control systems implemented. This paper reviews nutrient loading characteristics from these high source areas particularly during the winter period. Monitoring and evaluation data indicate very high unit area loading rates which can be reduced by as much as 90 percent with the application of surface and subsurface control systems.

Subject Headings: Nutrient loads | Load factors | Groundwater | Winter | Loading rates | Groundwater pollution | Subsurface investigation | Control systems | United States

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