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Articles 3631 - 3660 of 4613

Full-Text Articles in Civil and Environmental Engineering

Expected Effects Of In-Lake Dikes On Water Levels And Quality In The Farmington Bay And The East Shore Areas Of The Great Salt Lake, Utah, Duane G. Chadwick, J. Paul Riley, Alberta J. Seierstad, Darwin L. Sorensen, Norman E. Stauffer Jan 1986

Expected Effects Of In-Lake Dikes On Water Levels And Quality In The Farmington Bay And The East Shore Areas Of The Great Salt Lake, Utah, Duane G. Chadwick, J. Paul Riley, Alberta J. Seierstad, Darwin L. Sorensen, Norman E. Stauffer

Reports

Introduction: The Great Salt Lake is a terminal lake and as such is one of the major inland bodies of salt water in the world, and the largest lake of brine in the western hemisphere. Its unique features, including its mineral rich waters and interesting shores and islands, make it appealing to both industry and vacationers. Until recently, some of the great waterfowl sanctuaries in the U.S. existed along the easterly and northerly shores of the lake. However, during the past three years record breaking inflow volumes and lower than normal evaporation rates have caused an unprecidented rate of rise …


Appendices: Water Quality Management In Utah Mountain Watersheds, Keith R. Kimball, E. Joe Middlebrooks Jan 1986

Appendices: Water Quality Management In Utah Mountain Watersheds, Keith R. Kimball, E. Joe Middlebrooks

Reports

No abstract provided.


Economic Evaluation Of Conservation Concepts For Municipal Water Systems, Trevor C. Hughes, Rangesan Narayanan, Mac Mckee, A. Bruce Bishop, Robert Leconte, Sumani Al-Hassan Jan 1986

Economic Evaluation Of Conservation Concepts For Municipal Water Systems, Trevor C. Hughes, Rangesan Narayanan, Mac Mckee, A. Bruce Bishop, Robert Leconte, Sumani Al-Hassan

Reports

Five concepts for conservation of municipal water supply are analyzed from an economic efficiency perspectice. They include: 1) seasonal pricing (for reduction of peak period water use), 2) dual water systems (separate high quality drinking water and untreated outdoor irrigation systems), 3) imported water transmission facility capacity optimization, 4) flow restricting devices, and 5) short-term rationing concepts. Optimization models, including generalized model generators, were developed for analysis of the first three concepts and demonstrated by applications to cities in Utah. The flow restricting device and short-term rationsing concept analyses applied approaches taken from the literature to example sites in Utah. …


The Endangered Species Act And Western Water Projects, Lawrence J. Macdonnell Jun 1985

The Endangered Species Act And Western Water Projects, Lawrence J. Macdonnell

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

20 pages.

Contains references.


Water Project Financing Needs In Colorado, J. William Mcdonald Jun 1985

Water Project Financing Needs In Colorado, J. William Mcdonald

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

12 pages.


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.


Unresolved Issues In Federal Reserved Rights, Michael D. White Jun 1985

Unresolved Issues In Federal Reserved Rights, Michael D. White

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

12 pages.


Putting Indian Reservation Water Rights To Use, Richard B. Collins Jun 1985

Putting Indian Reservation Water Rights To Use, Richard B. Collins

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

10 pages.


Financing Water Projects: Where Do We Go From Here?, Henry P. Caulfield, Jr. Jun 1985

Financing Water Projects: Where Do We Go From Here?, Henry P. Caulfield, Jr.

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

16 pages.


Financing Water Projects: Where Do We Go From Here?: A Panel Discussion [Colorado House Bill No. 1088, As Amended 4/15/85], Chris Paulson Jun 1985

Financing Water Projects: Where Do We Go From Here?: A Panel Discussion [Colorado House Bill No. 1088, As Amended 4/15/85], Chris Paulson

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

4 pages.

Contains text of Colorado House Bill No.1088, as amended 4/15/85.


Interstate Transfers Of Water: Opportunities And Obstables [Sic], A. Dan Tarlock Jun 1985

Interstate Transfers Of Water: Opportunities And Obstables [Sic], A. Dan Tarlock

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

34 pages.


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.


Representing The Water Client [Outline], David W. Robbins Jun 1985

Representing The Water Client [Outline], David W. Robbins

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

3 pages.


Federal And State Regulation Of Activities Affecting Water Quality, Julia B. Epley Jun 1985

Federal And State Regulation Of Activities Affecting Water Quality, Julia B. Epley

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

54 pages.


Legal Implications Of Instream Flows And Other Nonconsumptive Uses, Steven J. Shupe Jun 1985

Legal Implications Of Instream Flows And Other Nonconsumptive Uses, Steven J. Shupe

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

14 pages.


The Public Trust Doctrine: Conflict With Traditional Western Water Law?, Harrison C. Dunning Jun 1985

The Public Trust Doctrine: Conflict With Traditional Western Water Law?, Harrison C. Dunning

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

24 pages.

Contains references.


Inefficiency, Waste, And Loss: Water Supplies Of The Future?, John W. Krautkraemer Jun 1985

Inefficiency, Waste, And Loss: Water Supplies Of The Future?, John W. Krautkraemer

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

24 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.


The Prior Appropriation System In Western Water Law: The Law Viewed Through The Example Of The Rio Grande Basin, James N. Corbridge Jr., Charles F. Wilkinson Jun 1985

The Prior Appropriation System In Western Water Law: The Law Viewed Through The Example Of The Rio Grande Basin, James N. Corbridge Jr., Charles F. Wilkinson

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

17 pages.

Contains references.


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.


Administering Water Rights: The Colorado System, Raymond L. Petros Jun 1985

Administering Water Rights: The Colorado System, Raymond L. Petros

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

140 pages (includes illustrations and maps).

Contains bibliography.


Selecting Non-Point Source Pollution Treatment Practices Using Linear Optimization, John Gardy Garland Iii Apr 1985

Selecting Non-Point Source Pollution Treatment Practices Using Linear Optimization, John Gardy Garland Iii

Civil & Environmental Engineering Theses & Dissertations

This paper provides a case study application of a linear optimization program as a water quality management tool. The optimization program seeks to minimize the cost of nonpoint source pollution control by selecting the best combination of pollution control management practices for Hampton, Virginia. The management practice options are grass swale roadways, porous pavers, ponds, detention basins and fertilizer management education. Management practice selection is limited by constraints on land-use and water quality. Pollutants evaluated are total nitrogen, total phosphorus, suspended solids, fecal coliforms and biochemical oxygen demand (five-day). The value in the water quality constraints for pollution loading on …


Laser Levelling Land For Flood Irrigation, M D. Green, J. P. Middlemas Jan 1985

Laser Levelling Land For Flood Irrigation, M D. Green, J. P. Middlemas

Journal of the Department of Agriculture, Western Australia, Series 4

Since the introduction of laser levelling to Western Australia's South-West irrigation area five years ago, many farmers have benefited from this new and precise method of land-forming.

The use of lasser controlled earthmoving equipment to redevelop irrigated paddocks has led to improved irrigation efficiency and drainage. Less water is used for each irrigation, water is applied more evenly and less labour is needed. many older, grass-dominated paddocks have been reseeded to improve pasture species.


A Study Of Trihalomethane Precursors In Deer Creek Reservoir, Megan J. White, V. Dean Adams Jan 1985

A Study Of Trihalomethane Precursors In Deer Creek Reservoir, Megan J. White, V. Dean Adams

Reports

Deer Creek Reservoir and tributaries were monitored from May to December 1983 in a study of the occurrence of trihalomethane (THM) precursors in the reservoir and nutrient dynamics of the reservoir system. Microcosms were used to study the effect of the following parameters on THM precursor production in the reservoir system: phosphorus loading, sediment, algal growth, and application of algicide. Additionally, THM precursor concentrations of interstitial water were analyzed in reservoir and microcosm sediment samples. Microcosms treated with ahigh phosphorus loading (70 ug/1) had THM precursor concentrations significantly higher than those measured in microcosms treated with a low phosphorus loading …


Development Of Design Criteria For Sensitizer Photooxidation Treatment Systems, Richard J. Watts, V. Dean Adams, E. Joe Middlebrooks Jan 1985

Development Of Design Criteria For Sensitizer Photooxidation Treatment Systems, Richard J. Watts, V. Dean Adams, E. Joe Middlebrooks

Reports

Sensitized photooxidation is a physicochemical process that can degrade many toxic and refractory organic pollutants. A trace quantity of sensitizer added to the waste absorbs visible light; electronically excited intermediates then transfer the energy to decompose the waste. Engeineering design criteria were developed for industrial waste treatment lagoons that would use sensitized photooxidation. Design criteria were developed regarding optimum lagoon pH, optimum sensitizer concentration, depth and sizing of lagoons, dissolved oxygen requirements, and effect of temperature on photooxidation rate. Treatment of the refractory pesticides bromacil, terbacil, and fluometuron was investigated using methylene blue and riboflavin as sensitizers. Methylene blue-sensitized photooxidation …


Preliminary Identification, Analysis, And Classification Of Odor-Causing Mechanisms Influenced By Decreasing Salinity Of The Great Salt Lake, C. Earl Israelsen, Darwin L. Sorensen, Alberta J. Seierstad, Charlotte Brennard Jan 1985

Preliminary Identification, Analysis, And Classification Of Odor-Causing Mechanisms Influenced By Decreasing Salinity Of The Great Salt Lake, C. Earl Israelsen, Darwin L. Sorensen, Alberta J. Seierstad, Charlotte Brennard

Reports

Introduction: The rising level of the Great Salt Lake has received a great deal of attention because of the resulting physical damage to adjoining properties, threatened distruption of major transportation facilities, and environmental damage to feeding and resting areas for migratory waterfowl. Another problem of growing concern is that some zones of the lake are producing odors that are objectionable to nearby populated areas. These odors are most offensive during the warm summer months and appear to be increasing with the rising levels and decreasing salinity of the lake water. This report presents the approach taken and the findings of …


Water Education Grades K-6, Donald R. Daugs, C. Earl Israelsen Jan 1985

Water Education Grades K-6, Donald R. Daugs, C. Earl Israelsen

Reports

Preface: Water Activites for Elementary Children is based upon the assumption that children learn best by doing. In education, and especilly in science, talking is not necessarily teaching. The most desireable types of learning involve direct, first hand experience, not just a teacher's interpretation of these experiences. This set of learning experiences has been designed for teachers, teachers-in-training, and children, Each concept includes background information for the teacher and learning activities for the children. Lessons are designed so taht a teacher can successfully teach a unit or lession with a minimum of knowledge, preparation, and equipmnet. Most of the suggested …


Water Well Pump Efficiency Monitor Units, Calvin G. Clyde, Duard S. Woffinden, Graeme Duncan Jan 1985

Water Well Pump Efficiency Monitor Units, Calvin G. Clyde, Duard S. Woffinden, Graeme Duncan

Reports

Indroduction: As the costs for pumping municipal, industrial and irrigation water rise, owners and the public area giving increased attention to energy conservation. One way to conserve energy is to operate water pumps at or near peak efficiency. The measurement of pump efficiency usually requires a special test equipment, a skilled operator and time to perform the test. Owners may find it more economical to waste power than to monitor for inefficiencies. One way to help change this situation is to develop inexpensive equipment for unskilled people to use to obtain rapid measurements of pump efficiency under typical operating conditions. …


Methodology Report: Updating The Estimation Of Water Surface Elevation Probabilities And Associated Damages For Great Salt Lake , David S. Bowles, L. Douglas James, D. George Chadwick, Ronald V. Canfield, Norman Stauffer Jan 1985

Methodology Report: Updating The Estimation Of Water Surface Elevation Probabilities And Associated Damages For Great Salt Lake , David S. Bowles, L. Douglas James, D. George Chadwick, Ronald V. Canfield, Norman Stauffer

Reports

No abstract provided.


Delineation Of Landslide, Flash Flood, And Debris Flow Hazards In Utah, David S. Bowles Jan 1985

Delineation Of Landslide, Flash Flood, And Debris Flow Hazards In Utah, David S. Bowles

Reports

During 1982, 1983, and 1984, abnormally wet conditions in Utah triggered flash floods, landslides, and debris flows. Pore pressures built in hillside soils below melting snows and during prolonged periods of rainfall until the mass suddenly gave way, sometimes as a landslide and other times as a non-Newtonian debris flow that moved rapidly long distances down mountain slopes until finally stiffened by moisture loss or velocity loss because of flatter gradients. Also, runoff from heavy rainfall bursts picked up weathered and other loose material that accumulated on land surfaces over long dry periods . The sediment laden waters flowed out …