Lower American River dissolved oxygen monitoring, CA (2022 - 2024)

The purpose of the Lower American River (LAR) dissolved oxygen monitoring is to provide timely information to better understand how dissolved oxygen levels in the LAR fluctuate over time and space, particularly in relation to Folsom and Nimbus Dam operations, and if conditions are stressful to adult Chinook salmon in Nimbus Basin during the fall spawning period. This information has been collected from summer 2022 to present (winter 2024) used to inform resource managers about a biologically important water quality parameter during a key period in Chinook Salmon life history so they can take action to address poor water quality using water releases from dam gates or other means. Reports are provided to the American River Group as needed, generally on a monthly basis, to support water quality management discussions.