Managing the Columbia River Instream Flows, Water Withdrawals, and Salmon Survival (2004) / Chapter Skim
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Appendix A: Columbia River Initiative Draft Management Scenarios, July 7, 2003
Appendix A: Columbia River Initiative Draft Management Scenarios, July 7, 2003
Pages 221-228
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Appendixes 221
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From page 223... ...
Each scenario describes a specific hypothetical manage ment approach to water use and mitigation, if required, and gen erally describes the approach that would be used by Department of Ecology decisionmakers as they review water rights applica tions. The scope of work for the National Research Council's committee includes a requirement to review and comment on a set of management scenarios to be provided by the Department of Ecology.
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From page 224... ...
The scenarios are further distinguished based on a set of premises regarding the risk to salmonid populations that would arise from additional water withdrawals from the mainstem of the Columbia River. Scenario 1: Water Allocation Linked to Current Salmon Efforts The key premise of Scenario 1 is that there is a low risk to salmon survival resulting from existing and new allocations of water and that the state's current salmon recovery efforts are adequate, that is, the benefits from current efforts exceed the risks associated with new water allocations.
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From page 225... ...
Within the total amount of water allocated by Scenario 1, approximately 220,000 acre-feet would be made available to meet demand within the Columbia Basin Project. In addition to the 1,000,000 acre-feet to be allocated to Washington water users by Scenario 1,427,000 acre-feet, representing flow and temperature management actions taken in the Snake River, would be legally recognized through the Washington State reaches of the Snake and Columbia rivers, and 600,000 acre-feet would be recognized as necessary to meet the water resources needs of the state of Oregon.
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From page 226... ...
Scenario 3: Enhanced Level of Mitigation This alternative would incorporate the current salmon recov ery-related environmental activities and other proposed actions described in Scenarios 1 and 2. However, this scenario is prem ised on the notion that a more robust contribution to salmon health and survival would be necessary to secure additional benefits to fish and to offset the risks caused by additional water withdrawals from the river.
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From page 227... ...
Under Scenario 4, all new water rights could be required to offset water use through water rights changes and transfers, con servation, and/or utilizing newly developed storage capacity. The state would pursue conservation savings from existing rights and would also actively pursue storage projects that could pro vide the capacity to support new water resources for out-of stream appropriation.
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From page 228... ...
228 Managing the Columbia River Scenario 5: No Action Scenario Scenario 5 assumes that the existing rule governing the water resources of the Columbia River, the Department of Ecology would require consultation with fish managers (Washington De partment of Fish and Wildlife, Tribes, National Oceanic and At mospheric Administration -- Fisheries Division) prior to allocat ing new water rights.
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