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Spotsylvania And Caroline County Tidal Marsh Inventory Including City Of Fredericksburg, Arthur F. Harris Jr., Joseph C. Mizell, Gene M. Silberhorn

Reports

No abstract provided.

New Kent County Tidal Marsh Inventory, Damon G. Doumlele, Gene M. Silberhorn

Reports

No abstract provided.

Summary Of Shoreline Situation Reports For Virginia's Tidewater Localities, Carl H. Hobbs Iii, Dennis W. Owen, Lynne C. Morgan

Reports

This summary report marks the completion of the Shoreline Situation Report project. For over six years project team members with the Department of Geological Oceanography at the Virginia Institute of Marine Science have inventoried over 5,000 miles of shoreline in Tidewater Virginia. The methodology was developed and evaluated with funding through the Chesapeake Research Consortium, Inc. from the Research Applied to National Needs (RANN) program of the National Science Foundation. After preliminary evaluation as to its worth, the project became part of Virginia's Coastal Resources Management Program, supported by the Office of Conmerce and Resources with funds provided by the …

A Study Of Oyster Ground Leases Adjacent To The James River Bridge, Newport News, Virginia, Dexter S. Haven, Paul C. Kendall

Reports

Two leases of oyster planting ground adjacent to the James River Bridge at the Newport News end were studied in December, 1978. Sampling revealed that one area contained large quantities of oysters while, on the other area, oysters were scarce. Comparison with sample results and fathometer-traced bottom profiles taken in a 1976 study of the same areas indicates a close similarity.

A Two-Dimensional Hydrodynamic And Biogeochemical Water Quality Model And It's Application To The Lower James River, H. S. Chen, R. J. Lukens, C. S. Fang

Reports

No abstract provided.

Manual Of Water Quality Models For Virginia Estuaries, Albert Y. Kuo, Paul V. Hyer, C. S. Fang

Reports

It is not the purpose of this manual to make a nonmodeler able to develop a model by reading through it, since no manual of this nature can accomplish such a task. This manual is intended to increase the planner or manager's options by acquainting him with various types of models and informing him of the availability of currently working models. This manual contains the following: 1. A scheme indicating the types of water quality models which could be constructed, i.e. an overview of choices in models. 2. A brief description of each type of models developed under the Cooperative …

The Virginia Institute Of Marine Science Its Growth, Status, And Stature A Report On Progress During The Last 20 Years, William J. Hargis Jr., Eileen L. Shea

Reports

No abstract provided.

James River Hydraulic Model Study With Respect To The Proposed Third Bridge-Tunnel Causeway In Hampton Roads, C. S. Fang

Reports

No abstract provided.

The Impact Of Dredging On Public Grounds In The Pocomoke Sound Area During The 1978-1979 Oyster Season, Dexter S. Haven, James P. Whitcomb, Paul C. Kendall

Reports

The areas opened to dredging in Pocomoke Sound by the Virginia Marine Resources Commission (VMRC} were studied by the Virginia Institute of Marine Science (VIMS} to determine the effects of dredging upon the oyster populations.

Federal Agency Procedures For Project Design Flood Determination: Report To U.S. Water Resources Council, L. Douglas James, H. James Owen

Reports

No abstract provided.

Erosion Control Product Testing, C. Earl Israelsen, Eugene K. Israelsen, Joel E. Fletcher, Jerald S. Fifield, Ronald V. Canfield

Reports

Introduction: Fibrex Corporation has capability for manufacturing various blends of cellulose fibers which have been used at locations throughout the country for temporarily controlling erosion on denuded land areas, and for serving as growth media for grass and other vegetation. Soil and climatic conditions vary greatly where these products are used, and it is not possible to determine by observation whether one is more effective than another in controlling erosion or promoting vegetative growth. Fibrex is desirous of knowing with some degree of confidence which products have the highest level of erosion control so that additional efforts can be directed …

Tabulation And Application Of Pan Evaporation Data For Utah Through 1976, Kenneth G. Hubbard

Reports

Monthly values of evaporation, wind movement and water temperatures are presently for all available station in Utah. A brief review is given of factors which effect evaporation along with several examples of how pan evaporation data ware used.

Program Development Plan For An Operational Cloud Seeding Project In Utah With Evaluation Included, Geoffrey E. Hill

Reports

1. Operation Framework

In the arid climate of Southern and Central Utah, there is a continuing need to augment water supplies. While much of the water is needed for summertime use, particularly for irrigation, most of the available water is supplied by winter storms. Therefore, it is for the augmentation of the water stored naturally as snowpack at higher elevations that cloud seeding can make its greatest contribution.

Over the past several years, an attempt has been made to augment the snowpack by cloud seeding. Although there is a physical basis for expecting an increase in precipitation from a scientifically managed …

Research On Increased Winter Orographic Precipitation By Cloud Seeding (Fy 1979) Development Of Cloud Seedability Criteria, Geoffrey E. Hill

Reports

This research continues the exploration of improved cloud seeding technology through the use of airborne seeding, cloud physics measurements from a research aircraft and ground based measurements for the purpose of understanding transport and diffusion of seeding material, developing seedability criteria, and documenting in-cloud responses to seeding. Development of precipitation measuring and memory devices was continued with the aim of obtaining a network of gages well suited for measurement of winter snowfall in mountainous regions. Results of the research are highlighted by the development of criteria for seeding winter orographic storms. It was found that the cloud top temperature and …

Modeling The Performance Of The Intermittent Sand Filter, P. A. Cowan, E. J. Middlebrooks

Reports

Several models were developed to predict the efficiency of the intermittent sand filter (ISF) in removing algae from wastewater stabilization pond effluent; volatile suspended solids (VSS) was the analytical technique used to identify algal concentrations. The first (ISF model) and second (modified ISF model) models consisted of two distinct portions: a surface algal layer (SAL) component and a sand phase component. In the ISF model, the sand phase component was described in terms of 20 empirical sand filter efficiency terms (20 ^ coefficients); in the modified ISF model, a functional relationship between ^ and filter depth was developed. The modified …

A Resource Survey Of Hydroelectric Power Potential In Utah And Southeast Idaho, Calvin G. Clyde, Eugene K. Israelsen, Win-Kai Liu

Reports

N searching for alternative sources of energy to supply growing demands, it is essential that renewable sources by thoroughly considered. An essential early step in further hydroelectric power development is to understand in detail the amount and location of the resource. This survey of hydroelectric power potential covers the entire State of Utah, the Bear River Basin in Idaho and Wyoming, and the small part of the Snake River drainage lying in the Utah Power and Light Company service area in Idaho. Streams were covered initially if their flow was estimated to exceed 36 cfs 50 percent of the time. …

Erosion Control During Highway Construction: Volume 1, Calvin G. Clyde, C. Earl Israelsen, Paul E. Packer

Reports

Summary: Highway constuction as we know it today is a high-risk activity with respect to engendering soil erosion. In earlier days of road building, when rights-of-way were generally narrow and excavations mostly shollow, erosion was rarely a serious problem. Only occasionally was it considered necessary to design and apply specific measures for erosion control. With the advent of the superhighway involving far greater widths of right-of-way, and much deeper disturbance of the natural ground to affort the horizontal and vertical highway geometry necessary for high-speed travel, came a several fold increase in erosion potential and a direct need for specific …

Proceedings Of The Utah Water Pollution Control Association, 1979 Annual Meeting, Kathleen E. Bayn

Reports

Preface: This volume is the third published proceedings of the Utah Water Pollution Control Association's Annual Meeting. The Technical Program of the 1979 Annual Meeting was divided into four separate sessions. The opening session (Session I) provided an overview and direction for the entire meeting. Session II-A: Plant Safety, and Session III-A: Plant Safety, centered on the need for establishing appropriate safety procedures at wastewater installations. Session II-B: Selected Topics, was devoted to technical presentations of speical merit and interest to the local environmental engineering profession. Session III-B: Interim Upgrading, considered various alternatives to upgraiding wastewater facilities on an interim …

Pre-Impoundment Water Quality Study For The Dominguez Project, Larry Baker, V. Dean Adams, Leslie G. Terry, Jerald S. Fifield, Darwin L. Sorensen

Reports

Introduction: The U.S. Bureas of Reclamation is currently in the process of evaluating a number of water development projects in Southwest Colorado. As a part of the planning process the Bureasu has conducted a water qualtiy investigation, in cooperations with the UWRL, of the stream segments that will be affected by each project. The data collected in this study were used to evaluate the water quality of each stream segment with respect to various beneficial uses of water (agriculture, raw municipal water supply, protection of the aquatic biota) and will provide a baseline by which to assess the impact of …

Pre-Impoundment Water Quality Study For The Mancos Project, Larry Baker, V. Dean Adams, Leslie G. Terry, Jerald S. Fifield, Darwin L. Sorensen

Reports

Introduction: The U.S. Bureau of Reclamation is currently in the process of evaluating a number of water development projects in Southwest Colorado. As a part of the planning process the Bureau has conducted a water quality investigation, in cooperation with the UWRL, of the stream segments that will be affected by each project. The data collected in this study were used to evaluate the water quality of each stream segment with respect to various beneficial uses of water (agriculture, raw municipal water supply, protection of the aquatic biota) and will provide a baseline by which to assess the impact of …

Pre-Impoundment Water Quality Study For The Dolores Project, Larry Baker, V. Dean Adams, Leslie G. Terry, Jerald S. Fifield, Darwin L. Sorensen

Reports

No abstract provided.

Pre-Impoundment Water Quality Study For The Mc Elmo Project, Larry Baker, V. Dean Adams, Leslie G. Terry, Jerald S. Fifield, Darwin L. Sorensen

Reports

Introduction: The U.S. Bureas of Reclamation is currently in the process of evaluating a number of water development projects in Southwest Colorado. As a part of the planning process the Bureasu has conducted a water qualtiy investigation, in cooperations with the UWRL, of the stream segments that will be affected by each project. The data collected in this study were used to evaluate the water quality of each stream segment with respect to various beneficial uses of water (agriculture, raw municipal water supply, protection of the aquatic biota) and will provide a baseline by which to assess the impact of …

Pre-Impoundment Water Quality Study For The San Miguel Project, Larry Baker, V. Dean Adams, Leslie G. Terry, Jerald S. Fifield, Darwin L. Sorensen

Reports

Introduction: Scope of Study: The United State Bureau of Reclamation (USBR) is currently evaluating plans to construct a multipurpose reservoir on the San Miguel River 32 kilometers (20 miles) below Telluride, Colorado. As part of the environmental assessment for this project, the Utah Water Research Laboratory (UWRL) was contracted to conduct an intensive water quality study on the San Miguel River and its tributaries in the vicinity of the project area. In this study water samples were collected during the period from May, 1977, to August, 1978, on a monthly basis from three sites on the San Miguel River and …

Pre-Impoundment Water Quality Study For The West Divide Project, Larry Baker, V. Dean Adams, Leslie G. Terry, Jerald S. Fifield, Darwin L. Sorensen

Reports

Introduction: The U.S. Bureas of Reclamation is currently in the process of evaluating a number of water development projects in Southwest Colorado. As a part of the planning process the Bureasu has conducted a water qualtiy investigation, in cooperations with the UWRL, of the stream segments that will be affected by each project. The data collected in this study were used to evaluate the water quality of each stream segment with respect to various beneficial uses of water (agriculture, raw municipal water supply, protection of the aquatic biota) and will provide a baseline by which to assess the impact of …

Stochastic Analysis For Water Quality, Ronald F. Malone, David S. Bowles, William J. Grenney, Michael P. Windham

Reports

This report demonstrates the feasibility of applying stochastic techniques to linear water quality models. The Monte Carlo, First Order, and Generation of Moment Equation techniques are applied to a long term phosphorus model of Lake Washington. The effect of uncertainty of the phosphours loading term on simulated phosphous levels is analyzed. All three stochastic techniques produced the same results. The simulated concentrations of phosphorus in the water column are very responsive to uncertainty in annual phosphorus loading, the sediment concentrations relatively insensitive. The Monte Carlo technique is shown to require the most computation time of the three stochastic techniques applied. …

Levels Of Analysis In Comprehensive River Basin Planning, Dean T. Larson, L. Douglas James, Kirk R. Kimball, Jim Mulder, A. Berry Crawford, Charles Johson, Lance Rovig, Ken Sizemore

Reports

Since nearly every water resource managment choice has two or more sides, differences must be resolved in decision making. Equitable resolution requires an understanding of the reasons for the differences. These reasons originate in the implemented plans have physical-environmental, economic, social, cultural, and political impacts at levels ranging from local to national or international in scope. Decisions are made by individuals and groups impacted in all of these dimensions and at all of these levels; the decisions generate additional impacts; and the entire interactive process changes water management practice in ways outside the control of any one decision point or …

Impact Of Water And Soils Having High Source-Sink Potentials On Water And Salinity Management Under Irrigation In The Upper Colorado River Basin, Lyman S. Willardson, R. J. Hanks, J. J. Jurinak

Reports

Water management in irrigation projects is one potential method for reducing downstream salinity in the Colorado River. An important contribution can be made to developing more effective irrigation water management practices for water conservation and salinity control through identification and better understanding of the soil and water interactions that result in soils behaving as salt sources or as salt sinks. The interactions identified in this study were examined to determine the effects of various management alternatives on the quality and quantity of salt in subsurface return flow from irrigation projects. A soil solution chemistry model was developed to describe the …

Algal Bioassay Study For The Animas - La Plata Project, Leslie G. Terry, V. Dean Adams

Reports

No abstract provided.

An Economic Evaluation Of The Salinity Impacts From Energy Development: The Case Of The Upper Colorado River Basin, Rangesan Narayanan, Sumol Padungchai, A. Bruce Bishop

Reports

To analyze the effect of potential energy development on water allocation and water quality in the Upper Colorado River Basin, a linear programming model is formulated. Using the model, changes in salinity are predicted. Further, least-cost strategies to maintain the established numeric salinity criteria through both structural and nonstructural alternatives are developed. The effectiveness of alternative control measures are examined within given institutional constraints. Based on cost-benefit analysis, optimal salinity levels over time are proposed. The economic feasibility of presently planned strucutral measures to reduce salinity is investigated and contrasted with nonstructural alternatives.

Domestic Water Demand In Utah, Trevor C. Hughes, Robert Gross

Reports

Multiple regression and frequency analysis of average month, peak month, peak day, and instantaneous water use by various water supply systems in Utah and Colorado are used to develop water demand functions. The research objective was to predict water demand as a function of a small number of independent variables for which data were easily obtainable and thereby provide an attractive method for use by consulting engineers inf uture planning studies. The independent variables in landscaped area and accounts for use of supplementary ditch or pressure irrigation systems. The demand functions were developed with data from a sample of 14 …