Scientific Investigations Report 2006–5036

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

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Table 6. Estimated 2003-2005 mean annual inflows to and outflows from the Lower Klamath and Tule Lake National Wildlife Refuges, Oregon and California.

[Lower Klamath National Wildlife Refuge: Average of 2003-2005 annual flows (Source: Jon Hicks, Bureau of Reclamation, Klamath Falls, Oregon, written commun., 2005). Tule Lake National Wildlife Refuge: Flows based on 1989-1999 period except for D Pumping Plant]

Lower Klamath National Wildlife Refuge
Inflow (acre-feet per year)
D Pumping Plant 59,606
Ady Canal 29,434
Outflow (acre-feet per year)
Klamath Straits Drain -15,338
Comparison of net inflow to water delivery
Net inflow 73,703
Water delivery1 77,643
Tule Lake National Wildlife Refuge
Inflow (acre-feet per year)
N Canal 46,140
Lost River 24,600
Sump 1A and 1B inflows 81,250
Net ground-water inflow 19,000
Outflow (acre-feet per year)
D Pumping Plant outflow -59,606
N Canal -35,300
Comparison of net inflow to water delivery
Net inflow 76,084
Water delivery2 82,778

1Estimated needed water delivery for refuge areas south of State Line Road, table 3.

2Estimated needed water delivery for entire refuge, table 5.

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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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