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<br /> Proposed Action <br /> No Action <br />Resource Alternative .---- ~. <br /> Experimental Dam Releases Mechanical <br /> Removal <br /> 8,000 cfs 6,500-9,000 cis 5,000-20,000 31,000- 42,000-45,000. <br /> steady flow fluctuating flow cfs fluctuating 33,000 cis cfs high flow <br /> flow high flow <br />--- u___u__.______ - -- ---...---.- -- ~- ------..--- Sirililarto .- -- Shortte,m- <br />Recreation: Similar to Similar to Ihose Similar to those Similar to those Similar to those <br />Fishing in those described for described for described for those described for decline in <br />Grand described for Glen Canyon Glen Canyon Glen Canyon described for Glen Canyon and near <br />Canyon Glen Canyon Glen Canyon the <br /> deplelion <br /> reach; <br /> fishery <br /> likely to <br /> recover to <br /> pre~ <br /> experiment <br /> allevels <br /> without <br /> further <br /> ~dreatment <br />Recreation: Boats and No effect No effect Negligible NPSto NPSto No effect <br />Boating and visitor use effects on forewarn forewarn <br />Camping in decrease experienced boaters and boaters and <br />Glen 10% users campers: no campers; no <br />Canyon effect on float effect on float <br /> ~!!i~ fri~_. <br />Recreation: No effect No effect No effect on Could affect ca. Beneficial Beneficial Campers <br />Boating and camping; 1 % of users; short-term short-term on 14 <br />Camping in minor, short- some may impacts to impacts to beaches <br />Grand term impact (10 delay trips to recreational recreational may be <br />Canyon hrs/month) to avoid <8,000 boating in boating in affected by <br /> boating al flows cfs; camp gear Grand Grand Canyon motorboat <br /> below 8,000 at some risk Canyon noise or <br /> cis, when from high flows; users could <br /> Hance and low flows could be <br /> Crystal rapids slrand boats on displaced <br /> are more shore and/or <br /> difficult to dissatisfied <br /> J:l~','igate ________n.___ <br />Air Quality Continuation Similar to No Somewhat less Greater Negligible Temporary No effect <br />--- of ROD flows Action _~exibility in hvdronower effect due to increase in <br />._-~--- ------- <br /> <br /> <br />0 <br />:T <=> <br />OJ <br />'0 I- <br />~ <br />m <br />~ l'\.) <br />V> 0 <br />0 <br />)> ry <br />iil' <br />() <br />(ij <br />0- <br />m <br />::l <br />< <br />=;~ <br />0 <br />::l <br />3 <br />CD <br />::l. <br />OJ <br />::l <br />0- <br />m <br />::l <br />,0. <br />~ <br />0 <br />::l <br />3 <br />CD <br />::l <br />![ <br />0 <br />0 <br />::l <br />"' <br />CD <br />.0 <br />C <br />CD <br />::l <br />n <br />CD <br />"' <br />0 <br />::l <br />N <br />CD <br />