What are the anticipated impacts to water level management and groundwater management in the region?

• IGLD (2020) will be the new reference level used for regulating outflow in the lakes.
• IGLD (2020) should be used for future surface water modeling and management. Consequently, adjoining river management plans should be updated.
• Current models and decision-making tools, such as the NOAA Lake Level Viewer, will need to be updated.
• Adjusted water level heights may affect dam and lock operations.