Green-Duwamish Water Temperature Report for 2001-2003 June 2004 Green/Duwamish and Central Puget Sound Watershed Water Resource Inventory Area (WRIA) 9

Report Chronicles Water Temperature Data for the Green/Duwamish River

This report provides water temperature data in the Green/Duwamish River. It includes data for the Upper Green, Middle Green, Lower Green, and Duwamish Estuary Subwatersheds.

Water temperature is an important water quality parameter that affects the health and reproductive success of salmonids. The report reveals that temperatures exceeded water quality standards during certain times of year at certain locations.

This information helped the Steering Committee of the Green/Duwamish and Central Puget Sound Watershed (WRIA 9) develop and prioritize management actions for the Salmon Habitat Plan. This is one of a series of reports that make up the Strategic Assessment.

The preparation of this report was funded by the King County Department of Natural Resources and Parks.

Main Text and Figures (All files are in Adobe Acrobat)

Main text (2 MB)

Figure 1: Continous Temperature Monitoring Locations in the Green/Duwamish Watershed (957 KB)

Figure 2: Upper Green River Subwatershed: Monitoring Locations (630 KB)

Figure 3: Upper Green River Subwatershed: Temperature Data with Average Number of Days and Degrees Above 1997 Temperature Criterion of 16 degrees Celsius (635 KB)

Figure 4: Upper Green River Subwatershed: Temperature Data with Average Number of Days and Degrees Above 2003 Migration and Rearing Criterion of 16 degrees Celsius (630 KB)

Figure 5: Middle Green River Subwatershed: Monitoring Locations (599 KB)

Figure 6: Middle Green River Subwatershed: Temperature Data with Average Number of Days and Degrees Above 1997 Temperature Criterion of 18 degrees Celsius (555 KB)

Figure 7: Middle Green River Subwatershed: Temperature Data with Average Number of Days and Degrees Above 2003 Migration and Rearing Criterion of 17.5 degrees Celsius (630 KB)

Figure 8: Newaukum Creek Basin: Temperature Data with Average Number of Days and Degrees Above 1997 Temperature Criterion of 18 degrees Celsius (277 KB)

Figure 9: Newaukum Creek Basin: Temperature Data with Average Number of Days and Degrees Above 2003 Migration and Rearing Criterion of 17.5 degrees Celsius (278 KB)

Figure 10: Soos Creek Basin: Temperature Data with Average Number of Days and Degrees Above 1997 Temperature Criterion of 18 degrees Celsius (378 KB)

Figure 11: Soos Creek Basin: Temperature Data with Average Number of Days and Degrees Above 2003 Migration and Rearing Criterion of 17.5 degrees Celsius (373 KB)

Figure 12: Covington and Jenkins Creek Basins: Temperature Data with Average Number of Days and Degrees Above 1997 Temperature Criterion of 18 degrees Celsius (354 KB)

Figure 13: Covington and Jenkins Creek Basins: Temperature Data with Average Number of Days and Degrees Above 2003 Migration and Rearing Criterion of 17.5 degrees Celsius (354 KB)

Figure 14: Duwamish River, Lower Green River, Mill Creek, and Black River Basins: Monitoring Locations (442 KB)

Figure 15: Duwamish River, Lower Green River, Mill Creek, and Black River Basins: Temperature Data with Average Number of Days and Degrees Above 1997 Temperature Criterion of 18 degrees Celsius (Duwamish criterion is 21 degrees) (445 KB)

Figure 16: Duwamish River, Lower Green River, Mill Creek, and Black River Basins: Temperature Data with Average Number of Days and Degrees Above 2003 Migration and Rearing Criterion of 17.5 degrees Celsius (445 KB)

Figure 17: Black River Basin: Temperature Data with Average Number of Days and Degrees Above 1997 Temperature Criterion of 18 degrees Celsius (248 KB)

Figure 18: Black River Basin: Temperature Data with Average Number of Days and Degrees Above 2003 Migration and Rearing Criterion of 17.5 degrees Celsius (248 KB)

Figure 19: Compilation of Temperature Data along the Green-Duwamish River (2003 Migration and Rearing Criteria ranges from 17.5 degrees to 12 degrees Celsius; in addition, refer to Figures 4, 7, and 16) (361 KB) 

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