Scientific Investigations Report 2006–5036

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

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Table 3. Estimated water use in the Lower Klamath National Wildlife Refuge, Oregon and California, 2003-2005.

[Project, lands south of State Line Road irrigated by Bureau of Reclamation Project; Area K, Area K leased lands and all other units north of State Line Road; Non-Project, lands south of State Line Road not irrigated with Project water. Water-use categories are based on annual rates 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)
Project Area K Non-project Total
2003 Habitat Plan
Grain 9,028 15,979 0 25,008
Seasonal wetland 43,477 600 22,382 66,459
Emergent vegetation 14,182 0 0 14,182
Open water 18,260 0 0 18,260
Total water use 84,947 16,580 22,382 123,909
Precipitation -24,030 -5,564 -6,509 -36,103
Water delivery 60,917 11,015 15,873 87,806
Total 73,101 13,218 19,048 105,367
2004 Habitat Plan
Grain 15,760 15,978 0 31,738
Seasonal wetland 45,968 600 16,446 63,014
Emergent vegetation 14,201 0 0 14,201
Open water 18,281 0 0 18,281
Total water use 94,209 16,578 16,446 127,233
Precipitation -22,486 -4,630 -3,979 -31,094
Water delivery 71,723 11,948 12,467 96,138
Total 86,068 14,338 14,960 115,366
2005 Habitat Plan
Grain 12,835 15,881 0 28,716
Seasonal wetland 41,218 520 15,452 57,190
Emergent vegetation 15,516 0 0 15,516
Open water 18,232 0 0 18,232
Total water use 87,800 16,401 15,452 119,654
Precipitation -26,333 -5,786 -4,721 -36,840
Water delivery 61,467 10,615 10,732 82,814
Total 73,761 12,738 12,878 99,377
2005 Habitat Plan
Total water use 88,986 16,520 18,093 123,599
Adjusted water delivery 77,643 13,431 15,629 106,703

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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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