1,458 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Rivers"  
Results: 1 - 24 next
open access

Simulation of chlorinated water discharges from power plants on estuaries and rivers

Description: The fast-transient (tidal-transient) one-dimensional discrete-element chemical transport model and its associated computer code CHMONE were applied to study the effects of chlorinated water discharges from power plants on tidal estuaries and controlled rivers. The mathematical model has the capability to predict simultaneously the hydrodynamic, thermal, and chemical composition of water as one-dimensional time-dependent distributions. (LTW)
Date: January 1, 1977
Creator: Eraslan, A. H.; Lietzke, M. H.; Fischer, S. K. & Kalmaz, E. V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Water assessment report, section 13(b)

Description: An assessment is presented of water requirements and water supply availability for a proposed Geothermal Binary Demonstration Electric Generation Project near Heber, California. The following topics are discussed: principal findings, project description, water supply and availability, and effects of the project. (MHR)
Date: September 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

FY 1992 task plans for the Hanford Environmental Dose Reconstruction Project

Description: Phase 1 of the HEDR Project was designed to develop and demonstrate a method for estimating radiation doses people may have received from Hanford Site operations since 1944. The method researchers developed relied on a variety of measured and reconstructed data as input to a modular computer model that generates dose estimates and their uncertainties. As part of Phase 1, researchers used the reconstructed data and computer model to calculate preliminary dose estimates for populations from limit… more
Date: October 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Isolation of pathogenic Naegleria from artificially heated waters

Description: Investigations were undertaken to determine whether heated waters facilitate the proliferation of free-living amoeba that cause primary amoebic meningoencephalitis. Water samples were taken close to the discharges of power plants situated on lakes or rivers in Florida and Texas and from cooling towers in Tennessee. The water temperatures ranged from 29 to 42/sup 0/C. Water samples were also taken from several lakes in Florida and Texas without associated power plants. The water temperatures of … more
Date: January 1, 1977
Creator: Tyndall, R L; Willaert, E; Stevens, A R & Coutant, C C
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Middle Fork and Upper Salmon River Habitat Improvement Implementation Plan, FY 1988-1992.

Description: This document presents an implementation plan for completing the phase II portion of the Middle Fork and Upper Salmon River Habitat Improvement Agreement. Underseeding of spawning adult salmon and steelhead, high instream sediment levels, a lack of habitat diversity in the form of overhanging riparian vegetation and edge, and barriers to both adult and juvenile anadromous fish migration were identified as the principal factors limiting anadromous fish production in the project area. Underseedin… more
Date: February 1, 1988
Creator: Andrews, John & Everson, Larry B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A review of proposed Glen Canyon Dam interim operating criteria

Description: Three sets of interim operating criteria for Glen Canyon Dam on the Colorado River have been proposed for the period of November 1991, to the completion of the record of decision for the Glen Canyon Dam environmental impact statement (about 1993). These criteria set specific limits on dam releases, including maximum and minimum flows, up-ramp and down-ramp rates, and maximum daily fluctuation. Under the proposed interim criteria, all of these parameters would be reduced relative to historical o… more
Date: April 1, 1992
Creator: LaGory, K.; Hlohowskyj, I.; Tomasko, D.; Hayse, J. & Durham, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Annual Report on Resident Fish Activities, 1985 Fiscal Year, Columbia River Basin Fish and Wildlife Program, Action Item 41.8.

Description: This report addresses the status for resident fish projects currently implemented by the Bonneville Power Administration under the amended Columbia River Basin Fish and Wildlife Program. Projects that have been in place for a sufficient length of time are discussed in greater detail with a brief evaluation presented.
Date: September 1985
Creator: United States. Bonneville Power Administration. Division of Fish and Wildlife.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological status of the ground water beneath the Hanford project, January-December 1979

Description: Operations on the Hanford Site since 1944 have resulted in discharge of large volumes of process cooling water and low-level liquid radioactive waste to the ground. Radioactivity and chemical substances have been carried with these discharges and have reached the Hanford ground water. For may years wells have been used as groundwater sampling structures to gather data on the distribution and movement of these discharges as they interact with the unconfined ground water beneath the site. During … more
Date: April 1, 1980
Creator: Eddy, P. A. & Wilbur, J. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Augmented Fish Health Monitoring, 1988 Annual Report.

Description: Augmented Fish Health Monitoring Contract AI79-87BP35585 was implemented on July 20, 1987. Second year activities focused on full implementation of disease surveillance activities and histopathological support services to participating state agencies. Persistent and sometimes severe disease losses were caused by infectious hematopoietic necrosis (IHN) in summer steelhead trout in Idaho and in spring chinook salmon at hatcheries on the lower Columbia River. Diagnostic capability was enhanced by … more
Date: August 15, 1989
Creator: Warren, James W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Summary of Stock Identification Research on White Sturgeon of the Columbia River, 1985-1991 Final Report.

Description: White sturgeon (Acipenser transmontanus) are a long-lived, primitive fish species which forage primarily along the river bottom of large river systems in the Pacific Northwest. Historically, as an anadromous species, they could distribute downstream to feed in the rich estuary or marine areas and then migrate back up the river to spawn. With the historic river becoming a series of flooded impoundments, sturgeon were denied open river access, but they appear to have been able to adapt to the alt… more
Date: January 1, 1992
Creator: Setter, Ann L. & Brannon, E.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of an Effective Transport Media for Juvenile Spring Chinook Salmon to Mitigate Stress and Improve Smolt Survival During Columbia River Fish Hauling Operations, 1985 Final Report.

Description: Selected transport media consisting of mineral salt additions (Na/sup +/, Cl/sup -/, Ca/sup + +/, PO/sub 4//sup -3/, HCO/sub 3//sup -/, and Mg/sup + +/), mineral salts plus tranquilizing concentrations of tricaine methane sulfonate (MS-222), or MS-222 alone were tested for their ability to mitigate stress and increase smolt survival during single and mixed species hauling of Columbia River spring chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Salmo gairdneri). Successful stress … more
Date: February 1, 1985
Creator: Wedemeyer, Gary A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hanford Environmental Dose Reconstruction Project Monthly Report

Description: The objective of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The project is being managed and conducted by the Pacific Northwest Laboratory (PNL) under the direction of an independent Technical Steering Panel (TSP). The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed, from release to impa… more
Date: July 1, 1991
Creator: Finch, S.M. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal impact assessment of multi power plant operations on estuaries. [Computer calculations for Hudson River]

Description: The assessment of the thermal impact of multi power plant operations on large estuaries requires careful consideration of the problems associated with: re-entrainment, re-circulation, thermal interaction, delay in the attainment of thermal equilibrium state, and uncertainty in specifying open boundaries and open boundary conditions of the regions, which are critically important in the analysis of the thermal conditions in receiving water bodies with tidal dominated, periodically reversing flow … more
Date: January 1, 1977
Creator: Eraslan, A. H.; Kim, K. H. & Harris, J. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Hanford production reactor heat releases 1951--1971

Description: The purpose of this report is to document and detail the thermal releases from the Hanford nuclear production reactors during the period 1951 through 1971, and to put these releases in historical perspective with respect to changing Columbia River flows and temperatures. This information can also be used as a foundation for further ecological evaluations. When examining Hanford production reactor thermal releases to the Columbia River all related factors affecting the releases and the character… more
Date: April 1, 1992
Creator: Kannberg, L.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Drought and energy resource development in New Mexico

Description: This paper reviews the current relationship between water resources and energy development in New Mexico, with special emphasis on the San Juan and western Rio Grande basins. It examines the various ways in which the water used in energy extraction and processing may be acquired by the energy developer. Both supply-side and demand-side options are explored, and the conclusion is drawn that the source of water most attractive to the developer will be that which may be bought in the water market.… more
Date: January 1, 1977
Creator: Morris, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Toxicological benchmarks for screening of potential contaminants of concern for effects on aquatic biota on the Oak Ridge Reservation, Oak Ridge, Tennessee

Description: This report presents potential screening benchmarks for protection of aquatic life from contaminants in water. Because there is no guidance for screening benchmarks, a set of alternative benchmarks is presented here. The alternative benchmarks are based on different conceptual approaches to estimating concentrations causing significant effects. For the upper screening benchmark, they are the acute National Ambient Water Quality Criterion (NAWQC) and the acute pesticide advisory value (a concent… more
Date: September 1, 1992
Creator: Sutter, G.A. II (Oak Ridge National Lab., TN (United States)); Futrell, M.A. (East Tennessee State Univ., Johnson City, TN (United States)) & Kerchner, G.A. (Harvard Coll., Cambridge, MA (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Biological and Physical Inventory of Clear Creek, Orofino Creek, and the Potlatch River, Tributary Streams of the Clearwater River, Idaho, 1984 Technical Report.

Description: Clear Creek, Orofino Creek, and Potlatch Creek, three of the largest tributaries of the lower Clearwater River Basin, were inventoried during 1984. The purpose of the inventory was to identify where anadromous salmonid production occurs and to recommend enhancement alternatives to increase anadromous salmonid habitat in these streams. Anadromous and fluvial salmonids were found in all three drainages. The lower reach of Clear Creek supported a low population of rainbow-steelhead, while the midd… more
Date: May 1, 1985
Creator: Johnson, David B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental surveillance at Hanford for CY-1979

Description: Environmental data were collected for most environmental media including air, Columbia River water, external radiation, foodstuffs (milk, beef, eggs, poultry, and produce) and wildlife (deer, fish, and game birds), as well as soil and vegetation samples. In general, offsite levels of radionuclides attributable to Hanford operations during 1979 were indistinguishable from background levels. The data are summarized in the following highlights. Air quality measurements of NO/sub 2/ in the vicinity… more
Date: April 1, 1980
Creator: Houston, J. R. & Blumer, P. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Anadromous salmonids of the Hanford Reach, Columbia River: 1984 status

Description: The Hanford Reach, a regulated but flowing section of the Columbia River, supports spawning populations of fall chinook salmon and steelhead. It also serves as a migration route for upriver runs of chinook, coho and sockeye salmon, and of steelhead. Environmental studies conducted in association with activities on the Hanford Site provide a basis for assessing present ecological conditions in the Hanford Reach. Spawning populations of fall chinook salmon at Hanford increased dramatically after … more
Date: September 1, 1985
Creator: Becker, C.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Field Review of Fish Habitat Improvement Projects in the Grande Ronde and John Day River Basins of Eastern Oregon.

Description: The restoration of vegetation adapted to riparian environments and the natural succession of riparian plant communities is necessary to recreate sustainable salmonid habitat and should be the focal point for fish habitat improvement programs. In mid-August of 1991, a field review of 16 Salmon habitat improvement sites in the Grande Ronde and John Day River Basins in Eastern Oregon was undertaken. The review team visited various types of fish habitat improvements associated with a wide range of … more
Date: October 1991
Creator: Beschta, Robert L.; Platts, William S. & Kauffman, J. Boone
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hanford Environmental Dose Reconstruction Project

Description: The objective of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed, from release to impact on humans (dose estimates): Source Terms, Environmental Transport, Environmental Monitoring Data, Demography, Food Consumption, and Agriculture, and Env… more
Date: January 1, 1992
Creator: Finch, S.M. & McMakin, A.H. (comps.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Biological services program, fiscal year 1976

Description: Continuing activities are reported on studies seeking to solve ecological problems associated with energy development, other types of land and water developments, and activities of a supporting nature. Specific projects include: coal; power plants; ecological systems and inventory; information transfer; coastal ecosystems and outer Continental Shelf development; and geothermal, oil shale and minerals. (PCS)
Date: September 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Computed solid phases limiting the concentration of dissolved constituents in basalt aquifers of the Columbia Plateau in eastern Washington. Geochemical modeling and nuclide/rock/groundwater interaction studies

Description: A speciation-solubility geochemical model, WATEQ2, was used to analyze geographically-diverse, ground-water samples from the aquifers of the Columbia Plateau basalts in eastern Washington. The ground-water samples compute to be at equilibrium with calcite, which provides both a solubility control for dissolved calcium and a pH buffer. Amorphic ferric hydroxide, Fe(OH)/sub 3/(A), is at saturation or modestly oversaturated in the few water samples with measured redox potentials. Most of the groun… more
Date: August 1, 1982
Creator: Deutsch, W. J.; Jenne, E. A. & Krupka, K. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen