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Factors Affecting Dissolved Oxygen in Hydropower Reservoirs
Dissolved oxygen (DO) is becoming a significant issue for hydropower projects. This paper identifies some key factors that can help hydropower operators better understand the nature of...

Side Effect of the Cross-Flow Turbine: Improved Water Quality
The working principle of the Original Cross-Flow Turbine with draft tube demands air induced into the turbine housing to operate at high efficiency. Reoxygenation of water will occur,...

The Gloryhole Approach to Increasing Dissolved Oxygen Content
Deep intakes at hydroelectric dams in southern states withdraw water that is oxygen deficient during summer months when reservoirs become stratified. The 'Gloryhole'...

Distribution and Grain Sizes of Deposited Reservoir Sediments, Seventy Years after Dam Construction
The Elwha and Glines Canyon Hydroelectric Projects are located on the Elwha River in the northwest portion of the Olympic Peninsula in Washington State. The Elwha Dam was completed in...

Mercury in Fish and Water in New Impoundments?A Review of the Literature
Evidence to date indicates that only one metal, mercury, systematically bioaccumulates to ecologically significant concentrations as a direct result of impoundment. This bioaccumulation...

Glen Canyon Hydropower vs. The Grand Canyon (The Conflict of Basic Values)
Competing for the scarce resources of our future is the byword of the 1990's. For the last century and more, the United States has been in the position of always having more...

Balancing Power Production with Natural Resource Benefits: Can You Trade Apples for Oranges?
Recent legislation affecting the licensing of hydropower projects requires that equal consideration be given to power and nonpower resource values. As is the case for past attempts to...

The Impact of No Net Loss of Wetlands on Water Power Development Alternatives
Federal commitment to wetlands protection is increasing. The Bush Administration has embraced an as yet undefined goal of 'no net loss of wetlands' and various...

Relative Survival of Juvenile Chinook Salmon Through Bonneville Dam on the Columbia River
Preliminary results of a multiple year study indicate that juvenile chinook salmon passing through the juvenile bypass system at Bonneville Dam second powerhouse during the summer have...

Effects of Hydroelectric Turbine Passage on Fish Early Life Stages
Turbine-passage mortality has been studied extensively for juveniles and adults of migratory fish species, but few studies have directly quantified mortality of fish eggs and larvae. An...

Fish Entrainment and Mortality at the French Landing Hydroelectric Powerhouse
This case study explains the fish mortality study performed and results obtained at an existing hydroelectric powerhouse in Michigan. Undertaken in 1989 and 1990, this study provides data...

Fish Entrainment and Relicensing: Truths and Consequences
The states of Michigan, Wisconsin, and the U.S. Fish and Wildlife Service have issued guidelines that presuppose entrainment/turbine-induced mortality at most hydroelectric projects are...

Design of Extended Length Submerged Traveling Screen and Submerged Bar Screen Fish Guidance Equipment
The hydropower projects on the Snake and lower Columbia Rivers in the Pacific Northwest are unique because these rivers are also the spawning grounds for migratory salmon. The salmon swim...

Fish Protection at Water Intakes Using a New Signal Development Process and Sound System
American Electric Power Company, Inc., is exploring the feasibility of using a patented signal development process and sound system to guide aquatic animals with underwater sound. Sounds...

Atlantic Salmon Smolt Movement and Behavior at Vernon Hydroelectric Station
Behavior of emigrating Atlantic salmon smolts (Salmo salar) was studied at New England Power Company's (NEP) Vernon Hydroelectric Station located on the Connecticut River,...

Where's the Competition?: The Real Threats to Project Relicensing
The real potential competition in relicensing hydroelectric facilities is for use of the water and land resources currently dedicated to hydro power production. Relicensing applicants...

One Hydro Project?Many Regulatory Masters
A discussion of the dispersion of federal regulatory authority over the development of new hydro-power capacity is presented....

Legal Strategy in Dealing with Fish and Wildlife Resource Agencies
This paper is designed to provide a strategy for negotiating with Resource Agencies during the consultation and the 10(j) process. The strategy discussed herein can be reduced to three,...

Harrisburg Hydroelectric Project?Water Quality Issues
The Harrisburg Hydroelectric Project is a proposed 34.4 MW hydroelectric facility on the Susquehanna River near Harrisburg, Pennsylvania. The project will consist of a 16.5 ft high gated...

Fair Market Value vs. Net Investment
Among the 300 some hydro stations coming up for relicensing in the 1990s, some of them will certainly be taken over by the federal government or by competing license applicants. Under...

 

 

 

 

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