Version History for U.S. Geological Survey Circular 1486 Nitrogen in the Chesapeake Bay watershed—A century of change, 1950–2050 Edited by John W. Clune and Paul D. Capel ----------------------------------------------------- First posted online November 10, 2021 ----------------------------------------------------- Revised and reposted January 14, 2022 as version 1.1 Page 55 - A correction to the text was made in the sentence "Nutrient management in the Susquehanna River, with the largest annual load over time, continues to be a major challenge with respect to reaching the goal of the TMDL." Figure 3.3A, page 70 - The y-axis label was revised to "Change from 1995." Figure 4.S3A, page 80 - A spelling correction to "Delmarva" Peninsula was made. Figure 7.S3, page 107 - The location of the "Delaware River" label was corrected. Figure 8.3A, page 121 - The line between data points was corrected. ----------------------------------------------------- Revised and reposted January 9, 2024 as version 1.2 On page 55, in "Figure 2.2", the y-axis label: Total nitrogen load, in kilograms per year changed to Total nitrogen load, in pounds per year