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Upper Klamath Lake and the observed main-stem flows over the past 10 years.

The committee's conclusions are subject to modification in the future if scientific evidence becomes available to show that alteration of flows or water levels would promote the welfare of the threatened and endangered species under consideration by the committee. The committee will make a more comprehensive and detailed assessment of the environmental requirements of the endangered suckers and threatened coho in the Klamath River Basin over the next year, during which time it will develop final conclusions.