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The Ecology of Stream and Riparian Habitats of the Great Basin Region

Description: "The purpose of this profile is to summarize the ecological information available for and relevant to stream and riparian habitats of the Great Basin. The Great Basin comprises the northern half of the Basin and Range physiographic province and covers most of Nevada and western Utah and portions of California, Oregon, and Idaho. The entire basin actually consists of numerous subbasins and mountain ranges which present an extremely diverse physical setting" (p. iii).
Date: September 1989
Creator: Minshall, G. Wayne; Jensen, Sherman E. & Platts, William S.
Partner: UNT Libraries Government Documents Department

Review of Soils Design, Construction, and Performance Observations: Lookout Point Dam, Oregon

Description: This report reviews the performance of the Lookout Point Dam located on the Middle Fork of the Willamette River in Oregon. "This study is one of a series of similar studies of the foundation and soil mechanics features of earth dams [...] In these studies original design data are reviewed, construction experience is summarized, and performance fo the completed structures is compared with design predictions to provide information for use in the design and construction of future similar projects" (p. 1).
Date: May 1959
Creator: Waterways Experiment Station (U.S.)
Partner: UNT Libraries Government Documents Department

Columbia River Estuary Hybrid Model Studies: Report 1, Verification of Hybrid Modeling of the Columbia River Mouth

Description: From abstract: The Columbia Hybrid Modeling System was applied to the mouth of the Columbia River estuary to evaluate alternatives for reducing navigation channel maintenance dredging.
Date: September 1983
Creator: McAnally, William H., Jr.; Brogdon, Noble J., Jr.; Letter, Joseph V., Jr.; Stewart, J. Phillip & Thomas, William A.
Partner: UNT Libraries Government Documents Department

Preliminary Report on the Geology and Water Resources of Central Oregon

Description: From introduction: The observations recorded in this paper were made during a rapid reconnaissance from east to west through the central part of Oregon in the summer of 1903, and are in continuation of similar work in the same general region previously done by the author, reports concerning which have been published.
Date: 1905
Creator: Russell, Israel C.
Partner: UNT Libraries Government Documents Department

Jurassic (Bathonian and Callovian) Ammonites in Eastern Oregon and Western Idaho

Description: From abstract: Jurassic ammonites of late Bathonian to middle Callovian Age have been found in 12,000-13,000 feet (3,660-3,960 m) of strata exposed in the area near and south of Izee and Seneca in east-central Oregon. Ammonites of early Callovian Age and possibly also late Bathonian Age occur in several hundred feet of black shale exposed along Dennett Creek near Mineral, Idaho. Early Callovian ammonites also occur in similar black shale exposed on the Oregon side of Snake River Canyon about 32 miles (52 km) south of the northeast corner of Oregon.
Date: 1981
Creator: Imlay, Ralph W.
Partner: UNT Libraries Government Documents Department

Geology and Ore Deposits of the Takilma-Waldo District, Oregon: Including the Blue Creek District

Description: From Abstract: Two areas and their included mineral deposits, situated in Josephine County, southwestern Oregon, are described in this report. They lie within the Klamath Mountains, a region which is made up for the most part of rugged ridges trending in various directions but which, when viewed from higher summits, resembles a dissected plateau and is known as the Klamath peneplain. Rocks of both igneous and sedimentary origin are abundant in the districts described. The marine sedimentary rocks of the areas comprise a thick series of Carboniferous strata, with some interbedded volcanic rocks, and portions of the Galice formation, of Jurassic age, and of an Upper Cretaceous formation. The rocks of fluviatile origin include Tertiary conglomerate, Pleistocene valley fill, termed the " Llano de Oro formation," and somewhat later Pleistocene gravel and alluvium, in part glacial debris. Recent gravel is found along the present streams. The igneous rocks include several varieties of greenstone of probable Paleozoic and Mesozoic age and serpentine of late Jurassic or early Cretaceous age.
Date: 1933
Creator: Shenon, Philip J.
Partner: UNT Libraries Government Documents Department

The Geology and Petrography of Crater Lake National Park

Description: From introduction: The two papers published here refer practically to the whole region included in the National Park. The one. Part I, treats primarily of the geology, the development of the great volcano, Mount Mazama, and its collapse, which gave birth to Crater Lake; the other, Part II, deals with the petrography, and gives a special description of the various rocks occurring in the park.
Date: 1902
Creator: Diller, Joseph Silas & Patton, Horace Bushnell
Partner: UNT Libraries Government Documents Department

Some Mining Districts of Eastern Oregon

Description: From abstract: This report presents the results of a reconnaissance of most of the mining districts of Oregon east of the Cascade Range, with the exception of the districts in the Sumpter quadrangle. The districts described are distributed through an area roughly coincident with the Blue Mountains, which extend over much of the northeast quarter of the State.
Date: 1933
Creator: Gilluly, James; Reed, J. C. & Park, C. F., Jr.
Partner: UNT Libraries Government Documents Department

Preliminary Report of Reconnaissance for Uraniferous Granitic Rocks in Montana, Idaho, Oregon, Washington, and California

Description: From abstract: A reconnaissance to determine the uranium content of granitic rocks in the western states was made during parts of October and November 1951. The paucity of our knowledge of the granitic rocks that are most likely to contain significant quantities of uranium has prevented all but a very general isolation of areas or types of granitic rocks for reconnaissance examination.
Date: April 1952
Creator: Coats, Robert Roy
Partner: UNT Libraries Government Documents Department

Pay Secrecy

Description: This issue brief discusses pay secrecy policies that nearly half of workers nationally reported that they were either contractually forbidden or strongly discouraged from discussing their pay with their colleagues. Includes a listing of state laws that protect employees in discussing pay and compensation.
Date: June 2016
Creator: United States. Department of Labor.
Partner: UNT Libraries Government Documents Department

2013 National Ocean Dumping Site Monitoring Assessment Report

Description: This national report presents EPA's ocean dumping monitoring activities in fiscal year 2013. EPA conducted 13 surveys at 20 ocean disposal sites offshore from Puerto Rico, Virginia, South Carolina, Florida, Texas, Hawaii, and Oregon. This report summarizes each survey's objectives(s), activities, conclusions, and recommended environmental management actions.
Date: May 2016
Creator: United States. Environmental Protection Agency. Office of Water.
Partner: UNT Libraries Government Documents Department

Storm Runoff as Related to Urbanization Based on Data Collected in Salem and Portland, and Generalized for the Willamette Valley, Oregon

Description: Abstract: Storm runoff as related to urbanization is defined by a series of regression equations for Salem and for the Willamette Valley, Oregon. In addition to data from 17 basins monitored in the Salem area, data from 24 basins gaged in a previous study in Portland, Oregon-Vancouver, Washington were used defining the Willamette Valley equations. Basins used to define equations ranged in size from 0.2 to 26 square mi. Rainfall intensity varied from 1.8 to 2.2 in. for the 6-hour, 0.020 exceedance probability. Sensitivity analyses of equations indicate that urbanization of an undeveloped basin can increase peak discharge more than three times and almost double runoff volume. Much of Portland and Vancouver are located on porous river terraces where dry wells are used to shunt runoff. Much of east Salem is located on previously farmed land where drain tiles used to dewater soils still connect directly to streams.
Date: 1983
Creator: Laenen, Antonius
Partner: UNT Libraries Government Documents Department

Hydrology of Malheur Lake, Harney County, Southeastern Oregon

Description: Abstract: The various components of inflow and outflow to and from the lake and their relative magnitudes were identified. In 1972 water year the total inflow to the lake was 200,000 acre-feet, but it was only 75,000 acre-feet in 1973 water year. In 1972 water year the Donner and Blitzen River contributed 55 percent of the inflow, with Silvies River, direct precipitation, and Sodhouse Spring contributing 28, 13, and 4 percent respectively. Om 1973 the Donner and Blitzen River contributed 61 percent of the inflow. The Silvies River, direct precipitation, and Sodhouse Spring contributed 1, 25, and 12 percent respectively. Ground-water inflow, other than Sodhouse Spring, appears to be negligible. In 1972 water year, 81 percent of the outflow was by evapotranspiration and 19 percent was surface outflow through The Narrows. In 1973, 96 percent of the outflow was by evapotranspiration and 4 percent was surface outflow through The Narrows. Ground-water outflow is negligible.
Date: August 1975
Creator: Hubbard, Larry L.
Partner: UNT Libraries Government Documents Department

Hydrology of the Newberry Volcano Caldera, Oregon

Description: From abstract: Precipitation in the Newberry caldera is nearly in balance with evaporation, evapotranspiration, and and streamflow. A small surplus of water, estimated to be in the range 2,500 to 6,500 acre-feet, is available annually for recharge to deep aquifers beneath the caldera floor.
Date: 1983
Creator: Sammel, Edward A. & Craig, Robert W.
Partner: UNT Libraries Government Documents Department

Method for Relating Suspended-Chemical Concentrations to Suspended-Sediment Particle-Size Classes in Storm-Water Runoff

Description: From introduction: This report outlines procedures to relate suspended-chemical concentrations (nutrients, metals, or organic constituents) associated with suspended sediments in storm-water runoff to suspended-sediment particle-size classes based on settling velocities.
Date: 1982
Creator: Rinella, Joseph F. & McKenzie, Stuart W.
Partner: UNT Libraries Government Documents Department

Ground-Water Resources in the Hood Basin, Oregon

Description: From introduction: This study was made in cooperation with the planning departments of Wasco and Hood River Counties, The purposes of this report are (1) to describe the occurrence, movement, availability, and quality of ground water in the basin; and (2) to assess, where possible, the extent, thickness, hydrologic boundaries, and hydraulic properties of the principal aquifers.
Date: 1983
Creator: Grady, Stephen J.
Partner: UNT Libraries Government Documents Department

Water Resources of the Warm Springs Indian Reservation, Oregon

Description: From introduction: The present study is an inventory and appraisal of the water resources of the reservation, including determination of flow in major streams, yield of water to wells and springs, and quality of water. This study was conducted in cooperation with the Confederated Tribes of the Warm Springs Reservation. The cooperation and assistance of many officials of the Confederated Tribes, of the Bureau of Indian Affairs, and of the Indian Health Service helped greatly. Well-drilling and test-pumping data and other information generously furnished by Satish Puri, Tribal Engineer, were especially helpful.
Date: 1976
Creator: Robison, J. H. & Laenen, Antonius
Partner: UNT Libraries Government Documents Department

Availability and Quality of Ground Water in the Drain - Yoncalla Area, Douglas County, Oregon

Description: From introduction: The purpose of this report is to present information that may enable water users, potential water users, and planners to estimate likelihood of obtaining ground water in adequate quantity and of suitable quality at desired locations within the study area.
Date: 1976
Creator: Robison, J. H. & Collins, C. A.
Partner: UNT Libraries Government Documents Department

Storm Runoff as Related to Urbanization in the Portland, Oregon-Vancouver, Washington Area

Description: From abstract: "A series of equations was developed to provide a better method of determining flood frequencies in the Portland-Vancouver urban area that is now available. The resulting regression equations can be used to compute peak discharge and storm runoff with a standard error of estimate of approximately thirty percent." This report contains captioned, black-and-white photographs and a colored map.
Date: 1980
Creator: Laenen, Antonius
Partner: UNT Libraries Government Documents Department

Magnitude and Frequency of Floods in Eastern Oregon

Description: From purpose and scope: This report describes methods for estimating the magnitude and frequency of floods at ungaged sites on streams with unregulated flow in eastern Oregon. The purpose is to provide a method to estimate flood magnitude and frequency and to present the supporting data. The report is based on data from nearly all unregulated streams (or data from regulated streams prior to their regulation) where gaging stations have been operated.
Date: 1983
Creator: Harris, D. D. & Hubbard, Lawrence E.
Partner: UNT Libraries Government Documents Department