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<br />ou2152 <br /> <br />TABLE OF CONTENTS <br /> <br />Pae:e No. <br /> <br />CHAPTER 1 - PURPOSE OF AND NEED FOR ACTION <br /> <br />1.1 BACKGROUND.......................................... 1-1 <br />1.2 PURPOSE OF AND NEED FOR PROPOSED ACTION ............ 1-4 <br />1.2.1 Purpose of Proposed Action. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 <br />1.2.2 Need For Proposed Action ............................. 1-4 <br />1.3 MODERNIZATION OF RESERVOIR. . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 <br />1.3.1 Early Warning Alarm System. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 <br />1.3.2 Remote, Off-Site Operation of Reservoir . . . . . . . . . . . . . . . . . . . . 1-6 <br />1.3.3 Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 <br />1.3.4 Redesign of Spillway Channel and Outlet Works. . . . . . . . . . . . . . 1-6 <br />1.4 OTHER ELEMENTS OF THE PROPOSED ACTION .............. 1-6 <br />1.4.1 Maintain In-Stream Flow Rights and Enhance In-Stream Flows .... 1-6 <br />1.4.2 Preserve Recreational Resources and Fisheries ................ 1-7 <br />1.4.3 Prevent Continued Environmental Degradation to Puppy Dog <br /> <br />Lake Drainage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 <br />1.4.4 Provide Continued High Quality Water Source to Service <br /> <br />Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 <br />1.5 RESPONSIBLE OFFICIAL AND DECISION TO BE MADE ......... 1-7 <br />1.6 AGENCY RESPONSIBILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 <br />1.6.1 Federal Government .................................. 1-8 <br />1.6.1.1 Forest Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 <br />1.6.1.2 United States Army Corps of Engineers (COE) ......... 1-9 <br />1.6.1.3 Environmental Protection Agency (l<:PA) ............. 1-9 <br />1.6.1.4 United States Fish and Wildlife Service (USFWS) . . . . . . . . 1-9 <br /> <br />1.6.2 State Government . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 <br />1.6.2.1 Colorado Department of Health - Water Quality Control <br />Division (wQCD) ............................. 1-9 <br />1.6.2.2 Colorado Department of Natural Resources (CDNR) . . .. 1-10 <br />1.6.2.3 Colorado State Historic Preservation Office (SHPO) .... 1-10 <br />1.6.3 Local Government .................................. 1-10 <br />1.7 SCOPING AND PUBLIC INVOLVEMENT .................... 1-10 <br />1.8 ISSUES AND CONCERNS ................................. 1-11 <br />1.8.1 Significant Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-12 <br />1.8.1.1 Dam Safety/Flood Hazard . . . . . . . . . . . . . . . . . . . . . .. 1-12 <br />1.8.1.2 Water Storage Needs .......................... 1-12 <br />1.8.1.3 Hydrology/Fisheries........................... 1-13 <br />1.8.1.4 Socioeconomics - Project Cost .................... 1-13 <br />1.8.1.5 Socioeconomics - Consequential Growth ImpactS . . . . . .. 1-14 <br />1.8.1.6 Wetlands ................................... 1-14 <br />1.8.2 Other Issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-15 <br />1.8.2.1 Vegetation .................................. 1-15 <br />1.8.2.2 Wildlife .................................... 1-15 <br />1.8.2.3 Water Rights ................................ 1-15 <br />1.8.2. 4 Water Quality ............................... 1-15 <br />1.8.2.5 Recreation .................................. 1-15 <br />1.8.2.6 Transportation ............................... 1-15 <br /> <br />::~.~:::::.:<.:~<::.;.:;'X::-:.:,....: :;:.~::~~:-:.;.;..;::-...~;:;:~::: ~;::..;.~~;:::<;;;...,;:;:<:~:<~~w;::;:;.::::,,~;:::w..::;:::;;:.y";':;:~::::.0>>~:':-~~ ;-~~~,=,:"::;.::::::::-::,;v..~::::,<: ;:::;:;->>;\<",:-:vs;:::-",:,;;;:;::,,'<~<;-'':;~:::M'~:<~:~:'::':';'::<: ::;::':'~:{.':<',:~:~::::~,,{{.:~~,:,:,::::::~:;::,: :::.;-.<:.:.~:.:...:.;':;::.::;::-.;..::,:,::-:.5,:.z <br /> <br />September 1993 <br /> <br />P.zge i <br />