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Status of Wheeler Reservoir
This is one in a series of status reports prepared by the Tennessee Valley Authority (TVA) for those interested in the conditions of TVA reservoirs. This overview of Wheeler Reservoir summarizes reservoir purposes and operation, reservoir and watershed characteristics, reservoir uses and use impairments, and water quality and aquatic biological conditions. The information presented here is from the most recent reports, publications, and original data available. If no recent data were available, historical data were summarized. If data were completely lacking, environmental professionals with special knowledge of the resource were interviewed. 12 refs., 2 figs.
Date:
September 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Demonstration of Constructed Wetlands for Treatment of Municipal Wastewaters, Monitoring Report for the Period, March 1988--October 1989
To evaluate the constructed wetland technology, the Tennessee Valley Authority (TVA) implemented a municipal wastewater demonstration project in western Kentucky. Using combined city, State, and TVA appropriated funds, three constructed wetland systems were built at Benton, Hardin, and Pembroke, Kentucky. Demonstration objectives include evaluating relative advantages and disadvantages of these types of systems; determining permit compliance ability; developing, evaluating, and improving basic design and operation criteria; evaluating cost effectiveness; and transferring technology to users and regulators. A demonstration monitoring project was implemented with a partnership of funds from the Environmental Protection Agency (EPA) Region IV, other EPA funds through the National Small Flows Clearinghouse (NSFC), and TVA appropriations. TVA is managing the project in cooperation with an interagency team consisting of EPA, Kentucky Division of Water and NSFC. This report, which supersedes the first monitoring report (Choate, et. al., 1989) of these demonstration projects, describes each constructed wetland system, its status, and summarizes monitoring data and plans for each system. 5 refs., 30 figs., 26 tabs.
Date:
August 1, 1990
Creator:
Choate, Kimberly D.; Watson, James T. & Steiner, Gerald R.
Object Type:
Report
System:
The UNT Digital Library
Compendium of ordinances for groundwater protection
Groundwater is an extremely important resource in the Tennessee Valley. Nearly two-thirds of the Tennessee Valley's residents rely, at least in part, on groundwater supplies for drinking water. In rural areas, approximately ninety-five percent of residents rely on groundwater for domestic supplies. Population growth and economic development increase the volume and kinds of wastes requiring disposal which can lead to groundwater contamination. In addition to disposal which can lead to groundwater contamination. In addition to disposal problems associated with increases in conventional wastewater and solid waste, technological advancements in recent decades have resulted in new chemicals and increased usage in agriculture, industry, and the home. Unfortunately, there has not been comparable progress in identifying the potential long-term effects of these chemicals, in managing them to prevent contamination of groundwater, or in developing treatment technologies for removing them from water once contamination has occurred. The challenge facing residence of the Tennessee Valley is to manage growth and economic and technological development in ways that will avoid polluting the groundwater resource. Once groundwater has been contaminated, cleanup is almost always very costly and is sometimes impractical or technically infeasible. Therefore, prevention of contamination -- not remedial treatment--is the key to continued availability …
Date:
August 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Water resources review: Ocoee reservoirs, 1990
Tennessee Valley Authority (TVA) is preparing a series of reports to make technical information on individual TVA reservoirs readily accessible. These reports provide a summary of reservoir purpose and operation; physical characteristics of the reservoir and watershed; water quality conditions; aquatic biological conditions; and designated, actual and potential uses of the reservoir and impairments of those use. This reservoir status report addressed the three Ocoee Reservoirs in Polk County, Tennessee.
Date:
August 1, 1990
Creator:
Cox, J. P.
Object Type:
Report
System:
The UNT Digital Library
Results of fish tissue screening studies from sites in the Tennessee and Cumberland Rivers in 1988
TVA analyzes tissues of Tennessee Valley area fish as part of intensive evaluations and as pat of screening level evaluations. Intensive studies are conducted in reservoirs where contamination problems are known or suspected and include analysis of individual fillets from important fish species from several areas in the reservoir. This information is used by State public health officials to determine whether fish consumption advisories are necessary to protect human health. Screening studies are based on analysis of composite rather than individual samples and are intended to provide trend information and to identify areas where problems may exist indicating need for an intensive evaluation. All studies are coordinated with State agencies because they ultimately must make management decisions regarding public health. TVA has two fish tissue screening programs. One examines fish on an annual basis at inflow points from eight of the major tributaries into the Tennessee River reservoir system. The other examines fish from within the reservoirs on a rotating basis with the goal of sampling each reservoir at least once every three years. 7 refs., 1 fig., 8 tabs.
Date:
July 1, 1990
Creator:
Dycus, D. L.
Object Type:
Report
System:
The UNT Digital Library
Groundwater management and protection Madison County, Alabama
Groundwater is extremely important to Madison County as it provides nearly three quarters of the county's drinking water. In recent years, Madison County has increasingly recognized the need to protect its groundwater resource. A supply of usable groundwater is one element of a high quality environment, which can help spur economic development and provide for the needs of a growing population. Without planning protection and understanding of possible consequences, however, economic development and population pressures can cause a gradual degradation of groundwater. In April 1987, the Tennessee Valley Authority (TVA) convened a local groundwater steering group in Madison County. At the first meeting the ground agreed upon these goals: (1) to seek incorporate groundwater protection into the planning and development process for Madison County, (2) to support efforts by Madison County to obtain authority to adopt zoning ordinances and subdivision regulations, and (3) to develop a groundwater management plan for the county. This report provides essential information needed in developing a plan and is based on the following assumptions: the citizens of Madison County value the environment in which they live and wish to protect it from pollution; continued economic development is necessary for a healthy local economy; and a …
Date:
July 1, 1990
Creator:
French, J.H. & Strunk, J.W.
Object Type:
Report
System:
The UNT Digital Library
The effect of the use of plastic sampling containers on laboratory measurements of dissolved oxygen
Dissolved oxygen (DO) concentrations are often used to define the water quality of a stream or reservoir. In the Tennessee Valley, there is a commonly held belief that water quality in general, and DO in particular, is declining in TVA reservoirs. In 1980, TVA conducted a study of DO trends in the tailraces of Tennessee River Dams and found a downward trend in most reservoirs, with the greatest decrease in the downstream reservoirs. This report examines a change in sampling procedures which may have contributed to the perception of declining DO. 6 refs., 3 figs., 10 tabs.
Date:
October 1, 1990
Creator:
Fehring, J.P.
Object Type:
Report
System:
The UNT Digital Library
Water resources review: Wheeler Reservoir, 1990
Protection and enhancement of water quality is essential for attaining the full complement of beneficial uses of TVA reservoirs. The responsibility for improving and protecting TVA reservoir water quality is shared by various federal, state, and local agencies, as well as the thousands of corporations and property owners whose individual decisions affect water quality. TVA's role in this shared responsibility includes collecting and evaluating water resources data, disseminating water resources information, and acting as a catalyst to bring together agencies and individuals that have a responsibility or vested interest in correcting problems that have been identified. This report is one in a series of status reports that will be prepared for each of TVA's reservoirs. The purpose of this status report is to provide an up-to-date overview of the characteristics and conditions of Wheeler Reservoir, including: reservoir purposes and operation; physical characteristics of the reservoir and the watershed; water quality conditions: aquatic biological conditions: designated, actual, and potential uses of the reservoir and impairments of those uses; ongoing or planned reservoir management activities. Information and data presented here are form the most recent reports, publications, and original data available. 21 refs., 8 figs., 29 tabs.
Date:
September 1, 1990
Creator:
Wallus, Robert & Cox, Janice P.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of the water quality in the releases from thirty dams in the Tennessee River Valley
The Tennessee Valley Authority (TVA) has routinely monitored dissolved oxygen (DO) and temperature from the tailwater releases of its dams since the 1950s. The original objective of this monitoring was to collect baseline information to support reaeration research and determine the relative impact of impoundments on the assimilative capacity of the river system. This monitoring has continued even though the original objective was satisfied. New purposes for this monitoring data have arisen in support of several programs, without new consideration of the monitoring strategy and sampling design. The primary purpose of this report is to compare the historical release data for 30 dams in the Tennessee Valley based on four different objectives: (1) comparison of seasonal patterns, (2) comparison of baseline conditions using descriptive statistics, (3) evaluation of monotonic trends, and (4) discussion of monitoring strategies that might be required to determine compliance with existing and proposed criteria. A secondary purpose of the report is to compile the existing database into tables and figures that would be useful for other investigators. 51 refs., 210 figs., 1 tab.
Date:
September 1, 1990
Creator:
Butkus, S. R.
Object Type:
Report
System:
The UNT Digital Library
Status of Cherokee Reservoir
This is the first in a series of reports prepared by Tennessee Valley Authority (TVA) for those interested in the conditions of TVA reservoirs. This overviews of Cherokee Reservoir summarizes reservoir and watershed characteristics, reservoir uses and use impairments, water quality and aquatic biological conditions, and activities of reservoir management agencies. This information was extracted from the most current reports, publications, and data available, and interviews with water resource professionals in various Federal, state, and local agencies and in public and private water supply and wastewater treatment facilities. 11 refs., 4 figs., 1 tab.
Date:
August 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Status of Blue Ridge Reservoir
This is one in a series of reports prepared by the Tennessee Valley Authority (TVA) for those interested in the conditions of TVA reservoirs. This overview of Blue Ridge Reservoir summarizes reservoir and watershed characteristics, reservoir uses and use impairments, water quality and aquatic biological conditions, and activities of reservoir management agencies. This information was extracted from the most current reports and data available, as well as interview with water resource professionals in various federal, state, and local agencies. Blue Ridge Reservoir is a single-purpose hydropower generating project. When consistent with this primary objective, the reservoir is also operated to benefit secondary objectives including water quality, recreation, fish and aquatic habitat, development of shoreline, aesthetic quality, and other public and private uses that support overall regional economic growth and development. 8 refs., 1 fig.
Date:
September 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Approaches to verification of two-dimensional water quality models
The verification of a water quality model is the one procedure most needed by decision making evaluating a model predictions, but is often not adequate or done at all. The results of a properly conducted verification provide the decision makers with an estimate of the uncertainty associated with model predictions. Several statistical tests are available for quantifying of the performance of a model. Six methods of verification were evaluated using an application of the BETTER two-dimensional water quality model for Chickamauga reservoir. Model predictions for ten state variables were compared to observed conditions from 1989. Spatial distributions of the verification measures showed the model predictions were generally adequate, except at a few specific locations in the reservoir. The most useful statistics were the mean standard error of the residuals. Quantifiable measures of model performance should be calculated during calibration and verification of future applications of the BETTER model. 25 refs., 5 figs., 7 tabs.
Date:
November 1, 1990
Creator:
Butkus, S.R. (Tennessee Valley Authority, Chattanooga, TN (USA). Water Quality Dept.)
Object Type:
Report
System:
The UNT Digital Library
Water quality investigation of Kingston Fossil Plant dry ash stacking
Changing to a dry ash disposal systems at Kingston Fossil Plant (KFP) raises several water quality issues. The first is that removing the fly ash from the ash pond could alter the characteristics of the ash pond discharge to the river. The second concerns proper disposal of the runoff and possibly leachate from the dry ash stack. The third is that dry ash stacking might change the potential for groundwater contamination at the KFP. This report addresses each of these issues. The effects on the ash pond and its discharge are described first. The report is intended to provide reference material to TVA staff in preparation of environmental review documents for new ash disposal areas at Kingston. Although the investigation was directed toward analysis of dry stacking, considerations for other disposal options are also discussed. This report was reviewed in draft form under the title Assessment of Kingston Fossil Plant Dry Ash Stacking on the Ash Pond and Groundwater Quality.'' 11 refs., 3 figs., 18 tabs.
Date:
April 1, 1990
Creator:
Bohac, C.E.
Object Type:
Report
System:
The UNT Digital Library
PCB studies on fish from Watts Bar, Fort Loudoun, Tellico, and Melton Hill Reservoirs, 1988
The Tennessee Valley Authority (TVA) reservoirs that are the subject of this report have been under investigation for several years due to contamination with polychlorinated biphenyls (PCBs). The study has two primary objectives: (1) define the geographical boundaries where contamination in fish ceases to be a problem and (2) determine the trend in PCB loading in fish from reservoirs where the contamination has been well defined. The purpose of this document is to briefly describe results of PCB analysis of fish collected from these reservoirs in autumn 1988 and compare them to results for previous years. These results were shared with all members on the study team as soon as they were received from the analytical laboratory rather than waiting for this formal report. Therefore, decisions on updating existing advisories and selection of study design for autumn 1989 were made months before this document was prepared. 6 refs., 21 tabs.
Date:
September 1, 1990
Creator:
Dycus, D. L.
Object Type:
Report
System:
The UNT Digital Library
Status of Norris Reservoir
This is one in a series of reports prepared by the Tennessee Valley Authority (TVA) for those interested in the conditions of TVA reservoirs. This overview of Norris Reservoir summarizes reservoir and watershed characteristics, reservoir uses, conditions that impair reservoir uses, water quality and aquatic biological conditions, and activities of reservoir management agencies. This information was extracted from the most up-to-date publications and data available, and from interviews with water resource professionals in various federal, state, and local agencies, and in public and private water supply and wastewater treatment facilities. 14 refs., 3 figs.
Date:
September 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
South Fork Holston River basin 1988 biomonitoring
There is concern over the effects of shifts in land use use practices on the aquatic fauna of streams in the South Fork Holston River basin in northwestern North Carolina and southwestern Virginia. Trout reproduction has noticeably declined in the Watauga River subbasin. The Watauga River and Elk River subbasins have been subjected to commercial and resort development. The Middle fork Holston River and the upper South Fork Holston River subbasins have been affected by agricultural and mining activities, respectively (Cox, 1986). To aid reclamation and management of the South Fork Holston basin, Tennessee Valley Authority (TVA) biologists conducted biomonitoring--including index of biotic integrity and macroinvertebrate sampling--on the Middle Fork Holston, South Fork Holston, Watauga, and Elk Rivers to assess cumulative impairment related to changes in habitat and pollutant loading in these subbasins. Biomonitoring can detect environmental degradation, help document problem areas, and assist in development of strategies for managing water quality. This report discusses the methods and materials and results of the biomonitoring of South Fork Holston River Basin. 13 refs., 5 figs., 12 tabs.
Date:
June 1, 1990
Creator:
Saylor, C. F. & Ahlstedt, S. A.
Object Type:
Report
System:
The UNT Digital Library
Midwestern Business and Economic Review, Number 12, Fall 1990
Semiannual journal of the Bureau of Business and Government Research containing articles regarding theory and research related to economics, finance, management, accounting, marketing, and management information systems.
Date:
Autumn 1990
Creator:
Midwestern State University (Wichita Falls, Tex.). Bureau of Business and Government Research.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
A 15 MeV proton diagnostic for DIII-D
A 15 MeV proton diagnostic that is patterned after the ASDEX proton probe is presently being fabricated for the DIII-D tokamak. A bellows assembly inserts a silicon detector into the vacuum for plasma operation and retracts it for baking. The detector preamplifier is situated in a reentrant tube (at atmosphere) beside the detector; electrically, the whole assembly is referenced to vessel potential. Orbit calculations in realistic magnetic field geometries predict a proton detection efficiency of O(10{sup {minus}7}). The diagnostic will be used for burnup studies at high {beta} and particle transport studies in the H-mode. 25 refs., 4 figs.
Date:
October 1, 1990
Creator:
Duong, Hau & Heidbrink, W.W. (California Univ., Irvine, CA (USA))
Object Type:
Article
System:
The UNT Digital Library
Texas Research League Annual Report: 1989
Annual report of the Texas Research League describing goals, activities, and accomplishments during fiscal year 1989.
Date:
1990~
Creator:
Texas Research League
Object Type:
Report
System:
The Portal to Texas History
Texas State Health Plan: 1991-92, Volume 1
Biennial document outlining statewide health concerns and recommended strategies, including facilities and programs that will help assure equitable access for all Texas residents.
Date:
1990
Creator:
Texas. Statewide Health Coordinating Council.
Object Type:
Report
System:
The Portal to Texas History
PUC Bulletin, Volume 15, Number 5, January 1990
Monthly bulletin documenting changes in legislation, judicial rulings, and other regulatory updates related to telephone, electric, and other utility services in Texas.
Date:
January 1990
Creator:
Texas. Public Utility Commission.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
PUC Bulletin, Volume 15, Number 7, March 1990
Monthly bulletin documenting changes in legislation, judicial rulings, and other regulatory updates related to telephone, electric, and other utility services in Texas.
Date:
March 1990
Creator:
Texas. Public Utility Commission.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
PUC Bulletin, Volume 15, Number 6, February 1990
Monthly bulletin documenting changes in legislation, judicial rulings, and other regulatory updates related to telephone, electric, and other utility services in Texas.
Date:
February 1990
Creator:
Texas. Public Utility Commission.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
PUC Bulletin, Volume 15, Number 11, July 1990
Monthly bulletin documenting changes in legislation, judicial rulings, and other regulatory updates related to telephone, electric, and other utility services in Texas.
Date:
July 1990
Creator:
Texas. Public Utility Commission.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History