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Regional Assessment of Water Quality: Trinity River Basin

Description: The purpose of this study is "to identify significant issues affecting water quality" within the Trinity River watershed, located in the eastern half of Texas, "and to provide sufficient information for the Commission, river authorities, and other local government bodies to take appropriate corrective action necessary to maintain and improve the quality of [the] state's water resources" (p. [1]).
Date: October 1992
Creator: Alan Plummer and Associates, Inc.
Item Type: Refine your search to only Book
Partner: UNT Libraries
open access

Radioecological Studies of the Hudson River

Description: "This report summarizes the results of the Hudson River radioecological studies conducted in 1973" (p. 1). The study investigates the behavior of gamma-emitting radionuclides in the Hudson River and the accumulation of natural alpha-emitting radionuclides.
Date: 1973
Creator: New York University. Medical Center. Institute of Environmental Medicine.
Item Type: Refine your search to only Book
Partner: UNT Libraries
open access

Assessment of Sediment Runoff from Natural Gas Well Development Sites.

Description: Storm water sediment runoff from disturbed landscapes has the potential to impair aquatic environments. Small construction sites of 1-5 acres in the United States are currently regulated by the United States Environmental Protection Agency to minimize storm water runoff damages to the environment. Gas well construction sites are similar to other construction sites in how the landscape is altered, but are not similarly regulated. This study identified sediment runoff from gas well development si… more
Date: May 2007
Creator: Havens, David Loran
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Simulation of local watershed nutrient and sediment delivery to Lake Texoma.

Description: A hydrologic model and watershed export model was used to estimate the loading of nutrients and total suspended solids from un-gaged local watersheds associated with Lake Texoma. Discharge to the reservoir from local watersheds was predicted using a modification of the curve number method in HEC Hydrologic Modeling System (HEC-HMS). Event mean concentrations were applied to land use to estimate loadings of nutrients and TSS. Total discharge from the local watersheds was estimated to be 3.02 x 1… more
Date: May 2004
Creator: Upton, Alexandra C.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Sedimentation in the East Branch Mahoning Creek Basin, Clearfield and Jefferson Counties, Pennsylvania, June 1979 to June 1980

Description: From introduction: This report contains the findings of the first full year of data collected as part of a 3-year study to measure sediment discharges in the East Branch Mahoning Creek during installation of erosion and sedimentation controls by the surface miners.
Date: February 1982
Creator: Wetzel, Kim L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Suspended Sediment in Selected Streams of Southeastern Montana

Description: From purpose and scope: The purpose of this report is to summarize and evaluate fluvial-sediment data collected in the study area by the U.S. Geological Survey. The principal products of this report are sediment concentration and load statistics, sediment-transport curves, calculated mean annual sediment yields at selected stations, and an areal sediment-yield map. A secondary purpose is to describe sediment relationships between stations and basins and to identify environmental factors that ar… more
Date: April 1983
Creator: Litke, David W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nonpoint-Source Discharges in Pequea Creek Basin, Pennsylvania, 1977

Description: From abstract: The objective of this project was to assess the magnitudes and types of nonpoint discharges that affect the water quality of Pequea Creek. The project included the determination of (1) the total discharge of suspended sediment, nitrogen, and phosphorus from the basin; (2) intermittent storm and base-flow discharges from six subbasin sites of varying size, geology, and land use; (3) the difference in magnitudes of the discharges during base-flow periods and storms; and (4) which v… more
Date: November 1979
Creator: Ward, Janice R. & Eckhardt, David A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fluvial Sedimentation in Kentucky

Description: From abstract: This report, covering periods 1942-45 and 1951-81, documents the characteristics of sediment being transported from 79 drainage areas within the Commonwealth of Kentucky, and at eight stations on the main stem of the Ohio River.
Date: December 1983
Creator: Flint, Russell F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Geology of the Tulare Formation and Other Continental Deposits, Kettleman City Area, San Joaquin Valley, California, with a Section on Ground-Water Management Considerations and Use of Texture Maps

Description: From introduction: The purpose of this report is to compile the available geologic information on the Kettleman City area of the Central Valley that would aid others in the proper management of the valley's ground-water resources.
Date: May 1983
Creator: Page, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ground-Water Hydrology Before, During, and After Coal Strip Mining of a Shall Watershed in Coshocton County, Ohio

Description: From introduction: In this comprehensive cooperative study, the U.S. Department of Agriculture, Agriculture Research Service (USDA-ARS) at Coshocton, Ohio, is responsible for collecting and analyzing streamflow, sediment, and erosion data.
Date: 1983
Creator: Razem, Allan C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterizing Storm Water Runoff from Natural Gas Well Sites in Denton County, Texas

Description: In order to better understand runoff characteristics from natural gas well sites in north central Texas, the City of Denton, with assistance through an EPA funded 104b3 Water Quality Cooperative Agreement, monitored storm water runoff from local natural gas well sites. Storm water runoff was found to contain high concentrations of total suspended solids (TSS). Observed TSS concentrations resulted in sediment loading rates that are similar to those observed from typical construction activities. … more
Date: May 2008
Creator: Wachal, David J.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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