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Civil and Environmental Engineering

Water quality

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Articles 151 - 169 of 169

Full-Text Articles in Engineering

Water Development, Wildlife And Recreation: Panel, Charles W. Howe Jun 1987

Water Development, Wildlife And Recreation: Panel, Charles W. Howe

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

32 pages.

Contains 5 pages of footnotes and tables and 2 pages of references.

Includes a paper: "Option Value: Empirical Evidence from a Case Study of Recreation and Water Quality" by Douglas A. Greenley, Richard G. Walsh and Robert A. Young. A final version of this paper was published in 96(4) The Quarterly Journal of Economics (1981): 657-673.


The Use Of “Nonnavigable” Water For Public Purposes, John E. Thorson Jun 1987

The Use Of “Nonnavigable” Water For Public Purposes, John E. Thorson

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

18 pages.

Contains references.


Agenda: Water As A Public Resource: Emerging Rights And Obligations, University Of Colorado Boulder. Natural Resources Law Center Jun 1987

Agenda: Water As A Public Resource: Emerging Rights And Obligations, University Of Colorado Boulder. Natural Resources Law Center

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

Conference organizers and/or faculty included University of Colorado School of Law professors Lawrence J. MacDonnell, David H. Getches, and Charles F. Wilkinson.

This conference focused on the legal rights associated with a broad range of public uses and interests in water including recreation, fish and wildlife protection, and water quality. Evolving legal areas such as the public trust doctrine, instream flow laws, federal reserved rights, and wetlands protection were discussed.

Water as a Public Resource: Emerging Rights and Obligations considered the extension of the public trust doctrine to areas previously not covered by this concept, as well as developments in …


Federal/State Relations In Theory And Practice: A Sovereignty Mismatch, Charles T. Dumars Jun 1985

Federal/State Relations In Theory And Practice: A Sovereignty Mismatch, Charles T. Dumars

Western Water Law in Transition (Summer Conference, June 3-5)

12 pages.

Contains footnotes.


Western Ground Water Law: Overview And Recent Developments, J. David Aiken Jun 1985

Western Ground Water Law: Overview And Recent Developments, J. David Aiken

Western Water Law in Transition (Summer Conference, June 3-5)

27 pages.


Administering Water Rights: The Permit System, Lawrence J. Wolfe Jun 1985

Administering Water Rights: The Permit System, Lawrence J. Wolfe

Western Water Law in Transition (Summer Conference, June 3-5)

69 pages.

Contains references.


Agenda: Western Water Law In Transition, University Of Colorado Boulder. Natural Resources Law Center Jun 1985

Agenda: Western Water Law In Transition, University Of Colorado Boulder. Natural Resources Law Center

Western Water Law in Transition (Summer Conference, June 3-5)

Conference organizers and/or faculty included University of Colorado School of Law professors James N. Corbridge, Jr., Lawrence J. MacDonnell, Richard B. Collins, David H. Getches and Charles F. Wilkinson.

The prior appropriation doctrine has governed the allocation and use of water in the western United States since the 1850s. The shifting nature of water demand is bringing about changes in the traditional legal system. This conference will consider the fundamental principles of the prior appropriation doctrine together with the important new developments in the law now underway throughout the West.


A Statistical Comparison Of A Direct Filtration And A Conventional Water Treatment Facility In The Intermountain Region, Susan K. Burns, V. Dean Adams Sep 1984

A Statistical Comparison Of A Direct Filtration And A Conventional Water Treatment Facility In The Intermountain Region, Susan K. Burns, V. Dean Adams

Reports

Interest in low-cost direct filtration facilities and their effectiveness in treating the potable water sources of the Intermountain Region is increasing as the need for treated water supplies increase. Direct filtration is a water treatment scheme which does not include sedimentation and in some cases flocculation. Compared to conventional treatment, direct filtration has lowered capital costs, reduced space requirement, and decreased sludge quantities. Moreover, the direct filtration process may offer large reductions in coagulant dosages and costs.

Currently information comparing a direct filtration system to a conventional water treatment system in the Intermountain area is not readily available. The specific …


The Effects Of Limited Food Availability On The Striped Bass Fishery In Lake Mead, John R. Baker, Larry J. Paulson Jan 1983

The Effects Of Limited Food Availability On The Striped Bass Fishery In Lake Mead, John R. Baker, Larry J. Paulson

Publications (WR)

The original range of striped bass (Morone saxatilis) was along the Atlantic Coast. They were introduced into the lower Sacramento River in 1879 and are now also found along the Pacific Coast. A landlocked striped bass fishery was established in Santee-Cooper Reservoir, South Carolina, in 1954, and they have since been introduced into numerous other reservoirs, including Lake Havasu, Lake Mead and Lake Powell on the Colorado River. Striped bass were introduced into Lake Mead in 1969 in response to declines in the largemouth bass (Micropterus salmoides) fishery that occurred during the 1960s and in order to further utilize the …


Scientific Perspectives On Integrated Aquatic Resources Management Of The Colorado River, Larry J. Paulson Jan 1983

Scientific Perspectives On Integrated Aquatic Resources Management Of The Colorado River, Larry J. Paulson

Publications (WR)

When management requires water quality standards, we should establish standards in a scientific and logical manner to serve the long-term needs of the users. It was this very process that led to enactment of the Reclamation Act of 1902 and the Boulder Canyon Project Act of 1928 - legislation that still serves the needs of users in the Colorado River Basin. This process can work again if we can make the "tradeoffs" that are so vital in management of a multi-purpose river.

In order to do this, however, we must first be able to identify "tradeoffs." This requires good scientific …


Usage And Limitations Of Characteristic Vector Analysis Of Remote Sensing Multispectral Data For The Identification And Quantification Of Water Quality Parameters, Theodore A. Talay Apr 1981

Usage And Limitations Of Characteristic Vector Analysis Of Remote Sensing Multispectral Data For The Identification And Quantification Of Water Quality Parameters, Theodore A. Talay

Civil & Environmental Engineering Theses & Dissertations

Recent applications of the technique of characteristic vector analysis to remote-sensing water color data has met with varying degrees of success. It is apparent from these experiments that a more thorough understanding of the informational capability of characteristic vector analysis is needed.


Lake Mead And Lake Powell Salinity Reports, Cathy Lee, Steve Gazafy Feb 1979

Lake Mead And Lake Powell Salinity Reports, Cathy Lee, Steve Gazafy

Publications (WR)

The enclosed reports were compiled for the Colorado River Water Quality Office based on salinity data for Lake Mead and Lake Powell. According to the regional director of the office, the reports are not considered "polished" documents for public distribution. However, he considers them to be "interesting, rough appraisals of general trends that may be very important In our understanding the hydro-salinity system in the Colorado River."


Water Quality Enhancement By Point Destratification, Richard C. Peralta, J. E. Garton Jan 1978

Water Quality Enhancement By Point Destratification, Richard C. Peralta, J. E. Garton

Civil and Environmental Engineering Faculty Publications

No abstract provided.


Fundamental Analysis Of The Linear Multiple Regression Technique For Quantification Of Water Quality Parameters From Remote Sensing Data, Charles Henry Whitlock Iii Apr 1977

Fundamental Analysis Of The Linear Multiple Regression Technique For Quantification Of Water Quality Parameters From Remote Sensing Data, Charles Henry Whitlock Iii

Civil & Environmental Engineering Theses & Dissertations

Inconsistent results have been obtained from previous experiments which have applied linear multiple regression techniques to remote sensing data for quantification of water quality parameters. The objective of this investigation is to define optical physics and/or environmental conditions under which the linear multiple regression should be applicable. To achieve this objective, an investigation of the signal response equations is conducted and the concept is tested by application to both analytical test cases and actual remote sensing data from a laboratory under controlled conditions.

Investigation of the signed response equations shows that the exact solution for a number of optical physics …


Development Of A Water Quality Simulation Model Applicable To Great Salt Lake, Utah, Craig T. Jones, Calvin G. Clyde, William J. Grenney, J. Paul Riley Jun 1976

Development Of A Water Quality Simulation Model Applicable To Great Salt Lake, Utah, Craig T. Jones, Calvin G. Clyde, William J. Grenney, J. Paul Riley

Reports

The development of a model capable of predicting the long term (seasonal) . distribution of water quality constituents within Great Salt Lake was undertaken as a portion of the ongoing Great Salt Lake project at Utah State University. The overall goal of the project is the development of a modeling framework to assist relevant decision making bodies in the comprehensive management of the Great Salt Lake system. Phase I of the project provided the overall structural framework for management of the Great Salt Lake system, identified data needs, and established priorities for the development of submodels for incorporation into the …


Development And Preliminary Application Of Mathematical Models To The Weber Basin, W. J. Grenney, D. S. Bowles, M. D. Chambers, J. P. Riley Dec 1974

Development And Preliminary Application Of Mathematical Models To The Weber Basin, W. J. Grenney, D. S. Bowles, M. D. Chambers, J. P. Riley

Reports

The adoption of stream standards, whether for direct application or for the establishment of realistic effluent standards, creates a need to predict the impact of pollution loads on river water quality during critical flow periods or as the result of future user demands. Because of the complexity of aquatic systems, mathematical models are an excellent medium for bringing together the state-of-the-art knowledge from a variety of disciplines into a form which can be readily applied to practical problems. Applying a mathematical model to a river system has the added advantage of providing a structure for the systematic consideration of the …


Automation Of The Continuous Coagulation Monitor, Dee Mitchell, James J. Oskowis Jan 1974

Automation Of The Continuous Coagulation Monitor, Dee Mitchell, James J. Oskowis

Technical Reports

The development of automation in the past 50 years has paralleled the accelerating growth of today’s vast technological society. Automatic control systems are indispensable extensions of man's brain that enable him to monitor and regulate his complex environment. The principles of automatic control have a wide range of applications and interests in virtually every scientific field. The need for automatic control systems in vital applications of environmental engineering is both real and urgent. Extensive pollution has resulted in unavoidable water re-use and in the inevitable establishment of stringent effluent standards. Both water and wastewater treatment processes have necessarily become more …


Planning For Water Quality In The Bear River System In The State Of Utah, Utah Water Research Laboratory Jan 1974

Planning For Water Quality In The Bear River System In The State Of Utah, Utah Water Research Laboratory

Reports

No abstract provided.


Comprehensive Survey Of Sedimentation In Lake Mead, 1948-49, W. O. Smith, C. P. Vetter, G. B. Cummings, U.S. Bureau Of Reclamation Jan 1960

Comprehensive Survey Of Sedimentation In Lake Mead, 1948-49, W. O. Smith, C. P. Vetter, G. B. Cummings, U.S. Bureau Of Reclamation

Publications (WR)

Reservoirs are becoming an increasingly prominent feature of the American landscape. Built for flood mitigation and to change a fluctuating river into a dependable source of water for irrigation, power, and other purposes, they are predestined, like natural lakes, to be destroyed sometime following their creation. Sedimentation sooner or later robs most lakes and reservoirs of their capacity to store water. The significance of sedimentation in the life of Lake Mead, the largest artificial reservoir in the world, was realized when the plan for the reservoir was conceived, and an aerial survey of the floor was made in 1935 before …