Nitrate Dynamics in Fall Creek, New York
1976
Johnson, A. H. (Arthur H.) | Bouldin, David R. | Goyette, Edward A. | Hedges, Anne M.
Nitrate loss from a 330-km² rural watershed in central New York was monitored over a 31-month period. Seasonal NO₃-N patterns were well defined with highest levels in the winter and lowest levels in the summer resulting from accumulation of NO₃-N in the soil profile during the growing season and leaching during the winter months. Stream water at the outlet of the watershed studied is used as a source of drinking water for some 20,000 people. Nitrate-N concentrations at the drinking water intake currently do not exceed 3 mg/liter. Human activities affected NO₃-N levels, with dairying and sewage being the major contributors. If agriculture is expanded to its maximum acreage, keeping the present ratio of corn/hay/pasture/people, NO₃-N levels at the drinking water intake will not exceed present standards for drinking water.
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