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Table ES-l, Summary of Potential Impacts of the Execution of the lA, Adoption of the lOP, and Implementation of Biological rn 'f' w IV Conservation Measures (Page 23 of 29) Resourre/lssue No Action Impacts of Proposed Action/Alternatives TRIBAL RESOURCES Implementation Agreement The IA could impact Tribal resources along the Tribal Resources along the lower Colorado River The fA would facilitate the San Luis Rey Indian lower Colorado River through impacts on would not be impacted. The structural projects Water Rights Settlement, resulting in a beneficial hydrology /water rights, water quality, embodied in the QSA that would help conserve impact to water rights. Increased salinity levels at biological resuurces, cultural resources, land use, Colorado River water, such as lining the AAC and Imperial Dam would impact Tribal lands located or hydroelectric power. the CoachelJa Canal, could lose $200 million in State along the Colorado River between Parker Dam and funding and may not be implemented; therefore, Imperial Dam, but this increase falls within the there may not be water available from canal lining normal range of fluctuations that occur along the projects to facilitate implementation of the San Luis reach. In addition, this impact would be fully Rey Indian Water Rights Settlement Act. mitigated by implementation of authorized salinity control projects. Impacts to biological resources would be avoided through implementalion of the proposed biological conservation measures. Regarding hydroelectric power, BIA presently has a duty 10 supply energy to Indian tribes that cannot acquire energy themselves. A reduction in Headgate energy could impact BIA's ability to meet new Tribal energy demands. Reclamalion has concluded that the reduction in power produced at Headgate as a result of the water transfers in not an Indian Trust As~et, and Redamation does not propose to mitigate or compensate for this reduced opportunity to produce power. TRIBAL RESOURCES The lOP .:ould impact Tribal resources along the None. Proposed lOP: Impacts to cultural resources are to lower Colorado River through impacts on be evaluated separately from this EIS. Regarding hydrology /water rights, water quality, hydroelectric power, the lOP would have positive biological resources, cultural resources, land use, impacts on power production during overrun years or hydroelectric power. and negalive impacts during payback years. Power production at Hoover, Davis, Parker, and Headgate Rock Dams would be impacted. No Forgiveness Alternalive: Impacts would be as described for the proposed action. t:' " " " ~ 5. " ~ 3 :! " ~ tl '" - cr. I - " ~ " ~ N <::> <::> N ?= - o :-0 E ii. ;>;l " ;;;- ~ " .. :i' .. " ~ " .. " - o. ~ "' '" - cr.