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2016 EPA National Wetland Condition Assessment water quality data

Published by U.S. EPA Office of Research and Development (ORD) | U.S. Environmental Protection Agency | Metadata Last Checked: August 02, 2025 | Last Modified: 2023-12-01
EPA's 2016 National Wetland Condition Assessment sampled wetlands across the conterminous USA for vegetation, soils, water chemistry, and anthropogenic impacts. Data for all of these elements of the 2016 NWCA survey are available from the EPA NARS website. This particular publication uses the water chemistry data and the anthropogenic impacts data, as well as the general site data that describes sampling locations, wetland type classifications, etc. This dataset is associated with the following publication: Trebitz, A., and A. Herlihy. Wetland water quality patterns and anthropogenic pressure associations across the continental USA. WETLANDS. The Society of Wetland Scientists, McLean, VA, USA, N/A, (2023).

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