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Characteristics of Urban Runoff from Grange Hall Creek at Northglenn, Adams County, Colorado

Description: Purpose: The purpose of the study was to (1) determine quantity and quality of urban runoff from the upper Grange Hall Creek drainage basin in Northglenn; (2) identify constituents exceeding water-quality standards for agricultural waters; (3) compare differences in quality between dry-weather flow, snowmelt runoff and rainfall runoff; (4) determine rainfall-runoff relationships; (5) investigate relationships between constituent concentrations, specific conductance, and streamflow; and (6) suggest, where appropriate, alternatives of urban-runoff management.
Date: 1982
Creator: Hall, Dennis C. & Duncan, A. C.
Partner: UNT Libraries Government Documents Department

Drainage and Erosion Control Facilities: Field Performance Investigation

Description: Partial summary: "The drainage and erosion control facilities of 54 installations were observed to evaluate performance of surface and subsurface drainage systems, erosion control measures, and conditions of buried conduits and associated facilities. Although the facilities observed varied from only 1 to 30 years or more of age and it is recognized that basic demands have increased as well as the fact that design and construction procedures have been improved continuously, many of the old familiar problems still exist and a few new ones have developed" (p. xi).
Date: June 1973
Creator: Grace, John L.; Calhoun, C. C. & Brown, D. N.
Partner: UNT Libraries Government Documents Department

Use of Rainfall-Simulator Data in Precipitation-Runoff Modeling Studies

Description: Purpose and scope: The primary purpose of the study is to determine if data on infiltration and runoff obtained from the U.S. Geological Survey rainfall simulator, are useful in defining parameters used in the PRMS, which is used to predict runoff from larger watersheds. Incidental to this purpose are determination of the spatial variability of the parameters measured over the simulation plots and over the watershed, and sensitivity of these parameters in predicting runoff.
Date: 1983
Creator: Lusby, Gregg C. & Lichty, Robert W.
Partner: UNT Libraries Government Documents Department

Surface-Water Quality in the Campbell Creek Basin, Anchorage, Alaska

Description: From introduction: Data adequate to describe general flow conditions have been collected on most major streams in the Anchorage area, but comparable water-quality data needed to determine the effect of urbanization on the streams are scarce. Thus, in 1980 the U.S. Geological Survey, in cooperation with the Municipality of Anchorage, began a study of the effects of urban runoff on stream-water quality. A premise of the study was that urbanization does have an effect on the quality of surface runoff. The primary purpose of the study was to determine differences in water-quality characteristics between streams that drain natural and urban areas in Anchorage.
Date: 1983
Creator: Brabets, Timothy P. & Wittenberg, Loren A.
Partner: UNT Libraries Government Documents Department

Runoff Characteristics and Washoff Loads from Rainfall-Simulation Experiments on a Street Surface and a Native Pasture in the Denver Metropolitan Area, Colorado

Description: Abstract: Rainfall simulation studies were conducted in conjunction with the Denver Regional Urban Runoff Program to: (1) Compare runoff quantity and quality from two different intensities of rainfall on impervious plots having identical antecedent conditions, (2) document a first flush of constituent loads in runoff from 1,000-square-foot streetsurface plots, (3) compare runoff characteristics from a street surface subjected to simulated rainfall with those from a 69-acre urban basin of mixed land use subjected to natural rainfall, (4) perform statistical analysis of constituent loads in the runoff with several independent variables, and (5) compare the quantity and quality of runoff from 400-square-foot plots of native grasses used for pasture and subjected to simulated rainfall with that from a 405-acre basin covered with native grasses used for pasture and sub-jected to natural rainfall. The rainfall simulations conducted on the street surface showed that higher intensity simulated rainfall produced a higher percentage of runoff than lower intensity rainfall. A first flush of constituent loads occurred for most constituents in the runoff from most rainfall simulations on the street surface; however, a first flush did not occur in the runoff from simulated rainfall on the pasture. The event mean concentrations of constituents in the runoff from simulated storms on the street surface were generally much smaller than the event mean concentrations of constituents in the runoff from an adjacent urban basin. Analysis of the data from the rainfall simulations on a street surface indicates that intensity of rainfall and total rainfall are important variables determining constituent loads. The design of the experiment was such that intensity of rainfall and total rainfall were highly correlated, thus precluding the development of useful regression equations to predict washoff loads. The quality of runoff from the simulated rainfall on the pasture was influenced by the disturbed perimeters of ...
Date: 1987
Creator: Mustard, Martha H.; Ellis, Sherman R. & Gibbs, Johnnie W.
Partner: UNT Libraries Government Documents Department

Analysis of the August 14, 1980, Rainstorm and Storm Runoff to the South Platte River in the Southern Denver Metropolitan Area, Colorado

Description: From purpose and scope: The purpose of this report is to present an analysis of the August 14, 1980, rainstorm in Denver, Colorado, and describe its effects on the South Platte River and six of its tributaries (figure 1).
Date: 1983
Creator: Blakely, Steven R.; Mustard, Martha H. & Doerfer, John T.
Partner: UNT Libraries Government Documents Department

Precipitation-Runoff Modeling System: User's Manual

Description: From introduction: This documentation is designed to provide the user with the basic philosophy and structure of PRMS, instructions for application of established models designed as cataloged procedures, and instructions for interaction with the PRMS library to permit user additions or modifications of model components. The components and subroutines described in this document are those available at the time of publication. However, the library is dynamic and will be enhanced and updated through time. This manual will be updated to reflect major additions and changes through manual inserts or republications.
Date: 1983
Creator: Leavesley, G. H.; Lichty, R. W.; Troutman, B. M. & Saindon, L. G.
Partner: UNT Libraries Government Documents Department

Preliminary Evaluation of Flood Frequency Relations in the Urban Areas of Memphis, Tennessee

Description: From introduction: This report describes an alternative approach to developing flood frequency characteristics, and presents results of the application of that technique to small streams in the urban and sub-urban areas of Memphis, Tennessee. The tool used is a regression model, with variations. The use of a parametric rainfall runoff model is not attempted in the analysis.
Date: March 1978
Creator: Boning, Charles W.
Partner: UNT Libraries Government Documents Department

United Kingdom Election Result

Description: This report discusses the United Kingdom's (UK's) election of June 8, 2017, which resulted in a hung parliament, an outcome in which no single party won a majority of seats in the 650-seat House of Commons.
Date: June 14, 2017
Creator: Mix, Derek E.
Partner: UNT Libraries Government Documents Department

Geology and Ground-Water Resources of Camden County, New Jersey

Description: From introduction: The purpose of this investigation is to collect and interpret the basic hydrologic and geologic data and to appraise and report on the ground-water resources of Camden County. The objectives were to define the thickness and areal extent of the hydrologic units, evaluate the hydraulic characteristics of the aquifers, determine the effect of pumpage on the water levels of the area, define the source of recharge of the aquifers, and to evaluate the chemical quality of the ground water.
Date: June 1976
Creator: Farlekas, George M.; Nemickas, Bronius & Gill, Harold E.
Partner: UNT Libraries Government Documents Department

Conveyance Characteristics of the Nueces River, Cotulla to Simmons, Texas

Description: From purpose and scope: The purpose of this study is to provide data and hydrologic interpretations for use by the Bureau of Reclamation in evaluating and quantifying natural water losses that are known to occur along some reaches of the Nueces River. Specifically, this report presents data and analyses describing the conveyance characteristics of that reach of the Nueces River from Cotulla to Simmons.
Date: 1983
Creator: Massey, Bernard C. & Reeves, William E.
Partner: UNT Libraries Government Documents Department

Hydrologic Characteristics and Possible Effects of Surface Mining in the Northwestern Part of West Branch Antelope Creek Basin, Mercer County, North Dakota

Description: From introduction: The specific objectives of the study were to: (1) Determine the premining hydrologic and geochemical conditions in the 28 mi2 area; (2) provide a premining data base from which to measure the magnitude of change in the hydrologic system due to coal mining; and (3) determine the probable effects of mining on the water resources in the area.
Date: December 1981
Creator: Crawley, Mark E.
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

Evaluation of Rainfall-Runoff Data Network, Rockland County, New York

Description: Purpose and scope: This report evaluates the rainfall-runoff data collected at 12 sites on 10 streams in Rockland County during 1975-79 and examines the adequacy of the rainfall-runoff models developed for 10 of the sites. The predictive capability of the models will dictate their use in eventual determinations of flood-frequency relationships at each gaged site.
Date: 1982
Creator: Lumia, Richard
Partner: UNT Libraries Government Documents Department

A Stormwater Management Model for the West Branch Brandwyne Creek, Chester County, Pennsylvania

Description: From introduction: This report describes rainfall-runoff modeling for three subbasins of the West Branch Brandywine Creek basin. Effects of increased runoff from continued urbanization of the basin and of proposed flood-control structures for both the present and projected population are evaluated for the West Branch Brandwyne Creek at Coatesville and Modena and for Sucker Run at State Route 82.
Date: February 1982
Creator: Sloto, Ronald A.
Partner: UNT Libraries Government Documents Department

Development of a watershed prioritization strategy using remote sensing and the geographic resource analysis support system. Case study: city of Carrollton, Texas

Description: This study used a geographic information system (GIS) and an empirical pollutant load model to estimate average annual pollutant loads contained in storm water charges from the City of Carrollton, Texas.
Date: December 1996
Creator: Coffey, Jeffery M. (Jeffery Morgan)
Partner: UNT Libraries

Impact of Suburban Residential Development on Water Resources in the Area of Winslow Township, Camden County, New Jersey

Description: Purpose and scope: The purpose of this study is to assess the impact of the development of Winslow Crossing on water resources., including the quantity and quality of streamflow, the quality of ground water, and water levels of the aquifer. Streamflow and water-quality data were collected for 7 years at four sites on the tributaries and the main stem of the Great Egg Harbor River. Water-quality data were also collected at an additional four surface-water sites. Water levels were recorded at four observation wells. These wells were sampled periodically for water-quality analysis. Samples were also taken from the main production well for Winslow Crossing.
Date: May 1981
Creator: Fusillo, Thomas V.
Partner: UNT Libraries Government Documents Department