Stephen J. Kalkhoff
U.S. Geological Survey, Iowa City, IA
Activity
2018
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CHANGE IN NUTRIENT TRANSPORT FROM THE UPPER AND MIDDLE MISSISSIPPI BASINS SINCE THE BASELINE PERIOD (1980-1996)
32 Agricultural Impacts on Hydrology and Water Quality in the Midwest (Posters)Tuesday, 17 April 20188:00 AM - 5:30 PMFirst Floor Lobby
2016
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NITRATE REDUCTION FROM TILE DRAINAGE IN A RESTORED OXBOW WETLAND
14 Characterizing Water-Quality Changes through Continuous MonitoringMonday, 18 April 20161:30 PM - 5:30 PMTechnology Room
2009
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GLYPHOSATE IN SUSPENDED SEDIMENT IN STREAMS FROM TWO AGRICULTURAL AREAS OF THE UNITED STATES
264 Geochemical Approaches to Earth ProcessesWednesday, 21 October 20091:30 PM - 5:30 PMPortland Ballroom 252
Date Unknown
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PERCHLORATE OCCURRENCE IN SHALLOW GROUND WATER IN THE NORTH CENTRAL UNITED STATES
T192 Naturally Occurring Perchlorate (and Other Oxyanions) in the Hydrologic Cycle—Origins, Accumulation, Transformations, and Transport (Posters)