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Effect of ground-water/surface-water interactions on nitrate concentrations in discharge from the South Platte River alluvial aquifer, Colorado

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Abstract

Concentrations of dissolved nitrate in recharge-area water from a 200-km2 segment of the South Platte River alluvial aquifer near Greeley, Colorado, range from less than 0.1 to 58 mg/l as nitrogen, and the median concentration is 26 mg/l as nitrogen. Hydraulic-head data indicate that this nitrate-enriched ground water move toward the South Platte River. However, the median concentration of nitrate in ground water from the discharge area is only about 9 mg/l as nitrogen. Moreover, measurements of dissolved oxygen, nitrogen gas, nitrate, and nitrate-nitrogen isotope ratios are then taken, and comparison between chloride and silica concentrations in river and ground waters are also made.

Additional publication details

Publication type Conference Paper
Publication Subtype Conference Paper
Title Effect of ground-water/surface-water interactions on nitrate concentrations in discharge from the South Platte River alluvial aquifer, Colorado
Year Published 1995
Language English
Publisher ASCE
Publisher location New York, NY, United States
Larger Work Title International Symposium on Groundwater Management - Proceedings
First page 156
Last page 158
Conference Title Proceedings of the International Symposium on Groundwater Management
Conference Location San Antonio, TX, USA
Conference Date 14 August 1995 through 16 August 1995
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