Scientific Investigations Report 2006–5036

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5036

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Table 5. Estimated water use in the Tule Lake National Wildlife Refuge, Oregon and California, 2003-2005.

[Water-use categories are based on annual rates shown in table 1. “Adjusted water delivery” is the estimated water delivery plus additional water for salinity flushing. Source: Tim Mayer, U.S. Fish and Wildlife Service, Portland, Oregon, written commun., 2005]

Land-Use Category Water use (acre-feet)
Sump 1A Sump 1B Sump 2 Sump 3 Total
2003 Habitat Plan
Grain 0 0 15,328 27,257 42,585
Seasonal wetland 0 9,644 805 1,865 12,314
Emergent vegetation 2,444 0 0 1,003 3,447
Open water 34,037 0 0 1,552 35,589
Total water use 36,480 9,644 16,132 31,678 93,935
Precipitation -8,069 -2,888 -5,565 -10,688 -27,209
Water delivery 28,412 6,757 10,568 20,990 66,726
Adjusted water delivery 34,094 8,108 12,681 25,188 80,071
2004 Habitat Plan
Grain 0 0 16,022 27,275 43,297
Seasonal wetland 0 0 0 1,533 1,533
Emergent vegetation 2,444 2,187 0 1,144 5,775
Open water 34,037 10,152 0 1,771 45,959
Total water use 36,480 12,338 16,022 31,723 96,563
Precipitation -5,722 -2,048 -3,947 -7,565 -19,282
Water delivery 30,758 10,290 12,075 24,158 77,281
Adjusted water delivery 36,910 12,348 14,490 28,990 92,738
2005 Habitat Plan
Grain 0 0 16,023 26,472 42,494
Seasonal wetland 0 0 0 774 774
Emergent vegetation 2,444 2,187 0 1,975 6,606
Open water 34,037 10,153 0 3,057 47,246
Total water use 36,480 12,339 16,023 32,278 97,120
Precipitation -10,121 -3,623 -6,980 -13,460 -34,183
Water delivery 26,360 8,717 9,042 18,818 62,937
Adjusted water delivery 31,632 10,460 10,850 22,582 75,524
2003-2005 Averages
Total water use 36,480 11,441 16,059 31,893 95,873
Adjusted water delivery 34,212 10,306 12,674 25,586 82,778

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For more information about USGS activities in Oregon, visit the USGS Oregon Water Science Center home page.

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