Amy S. Ludtke

Progress and lessons learned from water-quality monitoring networks

Donna N. Myers, Amy S. Ludtke, D. Myers, 2017 .

Data from selected U.S. Geological Survey National Stream Water Quality Monitoring Networks

Amy S. Ludtke, T. L. Schertz, Richard B. Alexander, 1998 .

Quality-assurance results for routine water analyses in U.S. Geological Survey laboratories, water year 1998

Amy S. Ludtke, Mark T. Woodworth, Philip S. Marsh, 1994 .

Data from selected U.S. Geological Survey National Stream Water-Quality Networks (WQN)

Amy S. Ludtke, T. L. Schertz, Richard B. Alexander, 1996 .

Data from selected U.S. Geological Survey national stream water-quality monitoring networks (WQN) on CD-ROM

Amy S. Ludtke, T. L. Schertz, R. Alexander, 1996 .

Trends in precipitation chemistry across the U.S. 1985–2017: Quantifying the benefits from 30 years of Clean Air Act amendment regulation

Amy S. Ludtke, G. Wetherbee, D. Burns, 2021 .

Trends in bromide wet deposition concentrations in the contiguous United States, 2001-2016.

Amy S. Ludtke, G. Wetherbee, Christopher Lehmann, 2018, Environmental pollution.

Organic Contaminants, Trace and Major Elements, and Nutrients in Water and Sediment Sampled in Response to the Deepwater Horizon Oil Spill

Amy S. Ludtke, Jonathon C. Scott, L. Nowell, 2014 .