USGS Washington Water Science Center
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High water temperatures and low instream flows during the summer have been identified as some of the key limitations for the viability of South Fork Nooksack River salmon populations including summer and spring-run Chinook salmon. Restoration strategies including the placement of engineered log jams, the restoration of floodplains and wetlands, and instream flow negotiation have been developed by river managers to address high water temperatures and low instream flows.
In cooperation with the Nooksack Tribe, USGS will characterize the relationship between the groundwater-flow system, wetlands, and streams within the South Fork Nooksack River basin. This information will be used by the Tribe and other managers of the South Fork Nooksack River to inform salmonid restoration actions.