Flow and Quality Simulation of a Proposed Marina Development
A proposed off-channel marina development on the Sacramento River in California requires landfill in an area that is currently within the flood plain. Two dimensional computer models for...

Monitoring Water Quality: Neches Estuary, Texas
A continuous monitoring project has been established in the Neches Estuary of Southeast Texas, for the purpose of investigating the influence of tidal hydraulic on sedimentation in a floating...

Two-Dimensional Numerical Flow Models, Built and Used by Civil Engineers
The paper describes the WAQUA system, a series of programs to perform two-dimensional hydrodynamic and water quality simulations. Long term developments resulted in a successful system...

Potential Effects of Global Climatic Change on the Tennessee Valley Authority Reservoir System
Rising concentrations of carbon dioxide (CO2) and other 'greenhouse' gases are likely to increase global temperatures and...

Sedimentation and Water Quality in TVA's Ocoee Reservoirs
This paper reviews and summarizes sedimentation and water quality characteristics of the Tennessee Valley Authority's (TVA) three Ocoee Reservoirs located in Polk County in...

Sedimentation Problems of the Illinois River Valley
Natural and manmade factors have drastically changed the character of the river and resulted in the accelerated deposition of sediments all along the entire river valley. The Illinois...

A Marina Model of Continuous Loads and Equilibrium
For projects requiring dredge and fill permits from the Florida Department of Environmental Regulation (FDER) the impact on water quality is one of the primary areas of concern which must...

Harbor Restoration Through Improved Circulation
After several episodes of massive fish kills in Old Pass Lagoon on the Florida Gulf Coast, an investigation was undertaken to identify the problems and propose cost-effective solutions....

Approach for 3-D, Time-Varying Hydrodynamic/Water Quality Model of Chesapeake Bay
The U.S. Environmental Protection Agency (USEPA) has identified major contributing factors to the Bay's decline as inputs of nutrients and toxicants from point and nonpoint...

Effect of Conowingo Dam Releases on the Water Quality of the Lower Susquehanna River
A modeling study was performed to assess the effects of flow releases from Conowingo Dam on the water quality of Conowingo Pond and the Susquehanna River downstream of the dam. Reservoir...

A Phased Approach to Lunar-Based Agriculture
A manned lunar outpost will require agricultural facilities to provide for self-sufficiency. This paper examines a three phase approach which incorporates research on crop optimization....

Nature's Solutions to Space Insulation
Humans working or living in the harsh environment in space must be protected from temperature extremes. Any effective insulating system must be able to withstand a wide range of temperatures....

Environmental Health Programs of the USEPA
The major programs of the U.S. Environmental Protection Agency (EPA) designed to reduce risk to public health are summarized with emphasis on their content, funding and effectiveness in...

Guide for Design of Steel Transmission Towers
ASCE Manual 52, Guide for Design of Steel Transmission Towers, serves as a basis for the design of both guyed and self-supporting steel transmission...

Reusing Water
The disaster wreaked by what experts are calling the worst drought to hit the U.S. in 50 years has underscored what forward thinkers have been saying: conservation, including water reuse,...

Habitat and Water Quality Considerations in Receiving Waters
Temporal issues of importance include timing, magnitude, and return frequency of flow conditions as well as duration of exposure (concentration) and return frequency of specific exposure...

State Perspectives on Water Quality Criteria
The Federal Clean Water Act framework for water quality regulation is reviewed. The role of water quality standards in the regulation of stormwater discharges and the protection of beneficial...

Technological, Hydrological and BMP Basis for Water Quality Criteria and Goals
Water quality criteria and goals may be addressed through at least four means: institution of 1) technology-based controls, 2) best management practice (BMP) based controls, 3) water quality...

Cost-Effectiveness and Urban Storm-Water Quality Criteria
This paper reviews alternative methods of evaluating the effectiveness of investments in urban stormwater quality improvement. Experience in the related area of control of dry-weather...

Federal Requirements for Storm Water Management Programs
The Water Quality Act has provided the Environmental Protection Agency with the framework for developing a comprehensive storm water management program. The initial phases of the program...

 

 

 

 

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