Program: Central Valley FloodplainsSummary: During the late 1900's late summer and fall flows declined within the Cosumnes River. These declines in baseflow reduced access to historic spawning habitat for Fall run chinook salmon.During the late 1900's late summer and fall flows declined within the Cosumnes River. These declines in baseflow reduced access to historic spawning habitat for Fall run chinook salmon. This study, funded by the US Fish and Wildlife Service: investigated the loss of baseflow contributions to the river caused by regional groundwater overdraft; documented the seasonal hydraulic disconnection between much of the river and the complex regional aquifer; and estimated the volume of water needed to partially reconnect the river with the aquifer, reduce seepage losses and partially reinstate baseflows. Publications Linked Surface Water-Groundwater Model for the Cosumnes River Watershed: Hydrologic Evaluation of Management Options to Restore Fall Flows Mount, JF., Fogg G., Kavvas L., Fleckenstein J., Anderson M., Chen Z Q., et al. (2001). Linked Surface Water-Groundwater Model for the Cosumnes River Watershed: Hydrologic Evaluation of Management Options to Restore Fall Flows. Managing Surface Water-Groundwater to Restore Fall Flows in the Cosumnes River Fleckenstein, J., Anderson M., Fogg G., & Mount JF. (2004). Managing Surface Water-Groundwater to Restore Fall Flows in the Cosumnes River. ASCE Journal of Water Resources Planning and Management. 130(4),
Linked Surface Water-Groundwater Model for the Cosumnes River Watershed: Hydrologic Evaluation of Management Options to Restore Fall Flows Mount, JF., Fogg G., Kavvas L., Fleckenstein J., Anderson M., Chen Z Q., et al. (2001). Linked Surface Water-Groundwater Model for the Cosumnes River Watershed: Hydrologic Evaluation of Management Options to Restore Fall Flows.
Managing Surface Water-Groundwater to Restore Fall Flows in the Cosumnes River Fleckenstein, J., Anderson M., Fogg G., & Mount JF. (2004). Managing Surface Water-Groundwater to Restore Fall Flows in the Cosumnes River. ASCE Journal of Water Resources Planning and Management. 130(4),