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Federal
Modeled Nutrient and Sediment Concentrations from Major Rivers in Illinois Based on Continuous Monitoring from October 1, 2015, through September 30, 2022
Department of the Interior —
During water years 2016–2022 (a water year begins on October 1 and ends on September 30), the U.S. Geological Survey (USGS), in cooperation with the Illinois... -
Federal
Blackwater NWR water quality monitoring 2022 - 2024
Department of the Interior —
Survey protocol and data for water quality monitoring program on Blackwater NWR 2022 - 2024.