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<br />. rEa as '30 17':20 <br /> <br />~. , <br /> <br />on the downstream ecosystem? <br /> <br />C. Effects of a Rereaulation Dam <br /> <br />18. Question: If a rerequlatlon dam were oonstructed in the <br />Canyon some where between Glen Canyon Dam and Lee's Ferry, what <br />would be the effects of the discharges, variations in both <br />quantity and quality, on the downstream ecosystem? What also <br />would be the effects on the system in the location of the <br />impoundment behind the reregulation dam? <br /> <br />D. Effects of Beach Protection Device~ <br /> <br />19. Questions: It the beaches in the Canyon are degrading as <br />many observers say they are, ia it po..ible to mitigate this loss <br />with device. designed to protect or stabilize sediment <br />degradation? It so, what would the impacts be ot building and <br />maintaining such structures? What would be the effects on the <br />recreational experience in the Canyon? <br /> <br />E. Effects of Sediment Auqmentation <br /> <br />20. Questions: If sediment is being lost out of the Canyon <br />systea (shown by testing H.-I.1 and H.-3.1) and natural processes <br />for reeetablishing beaches have been determined (se. GeES I), is <br />it possible to help establiSh a sediment equilibrium in the <br />canyon and build beach.. by augmentinq sediment input and <br />ereatin; appropriate discharqes? If sediment is to be augmented, <br />what methods would b. moat successful and have the least <br />environmental impact? <br /> <br />4 <br />