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The State of the Hudson 2009

The State of the Hudson 2009

Date: 2009
Creator: New York (State). Hudson River Estuary Program.
Description: This report describes the environmental quality of the Hudson River and its watershed, including issues such as pollution, population growth, and biodiversity. The report also describes the habitats of estuaries, watersheds, and rivers in general.
Contributing Partner: UNT Libraries
Water Pollution: Proposed Pretreatment Standards for Industrial Laundries

Water Pollution: Proposed Pretreatment Standards for Industrial Laundries

Date: January 20, 1999
Creator: United States. General Accounting Office.
Description: Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the dispute between the Environmental Protection Agency (EPA) and the industrial laundry industry regarding EPA's cost benefit analyses of its proposed pretreatment standards, focusing on: (1) EPA's implementation of the Unfunded Mandates Reform Act of 1995 (UMRA); (2) the significant differences between EPA's and the industry's cost estimates of this proposed regulation; (3) ascertaining how EPA estimated the benefits of the proposed rule and disclosed the uncertainties associated with the accuracy of its estimates; and (4) how EPA's analysis supports its belief that the agency has chosen the least costly, most cost-effective, or least burdensome regulatory alternative."
Contributing Partner: UNT Libraries Government Documents Department
The Effects of Water Pollution Control Laws on Industrial Plant Location

The Effects of Water Pollution Control Laws on Industrial Plant Location

Date: May 1969
Creator: Montgomery, Austin Homer, 1928-
Description: The objective of this research is to determine the degree to which the recent antipollution laws will affect the location of industrial plants.
Contributing Partner: UNT Libraries
Regulations Governing Water Pollution Control Measure Plans and Permit Application Review

Regulations Governing Water Pollution Control Measure Plans and Permit Application Review

Date: October 16, 2006
Creator: China (Republic : 1949- ). Huan jing bao hu shu
Description: This law was passed by the government of the Republic of China (Taiwan) to protect human health and the environment by controlling water pollution.
Contributing Partner: UNT Libraries
Concentrations of Triclosan in the City of Denton Wastewater Treatment Plant, Pecan Creek, and the Influent and Effluent of an Experimental Constructed Wetland

Concentrations of Triclosan in the City of Denton Wastewater Treatment Plant, Pecan Creek, and the Influent and Effluent of an Experimental Constructed Wetland

Date: August 2004
Creator: Waltman, Elise Lyn
Description: The Pecan Creek Waste Reclamation Plant in Denton, Texas, an activated sludge WWTP, was sampled monthly for ten months to determine seasonal and site variation in concentrations of triclosan (5-chloro-2-(2,4-dichlorophenoxy)phenol), an antibacterial additive. SNK separation after the highly significant ANOVA on ranked data were: summer = fall > winter = spring and influent > downstream = effluent = wetland inflow > wetland outflow (a=0.05). After the plant converted to ultraviolet disinfection, measurements were made before and after the UV basin to determine if significant amounts of triclosan were converted to dioxin. Percent loss at each of the treatment steps was determined. Concentrations of triclosan in the downstream site were below the published NOEC for the most sensitive species.
Contributing Partner: UNT Libraries
Law of the People's Republic of China on Prevention and Control of Water Pollution

Law of the People's Republic of China on Prevention and Control of Water Pollution

Date: May 11, 1984
Creator: Standing Committee of the National People's Congress, P.R. China
Description: This Law is formulated for the purpose of preventing and controlling water pollution, protecting and improving the environment, safeguarding human health, ensuring the effective use of water resources and facilitating the development of socialist modernization.
Contributing Partner: UNT Libraries
Federal Water Pollution Control Act

Federal Water Pollution Control Act

Date: November 27, 2002
Creator: United States. Congress. House
Description: The Clean Water Act (CWA) establishes the basic structure for regulating discharges of pollutants into the waters of the United States and regulating quality standards for surface waters. The basis of the CWA was enacted in 1948 and was called the Federal Water Pollution Control Act, but the Act was significantly reorganized and expanded in 1972. "Clean Water Act" became the Act's common name with amendments in 1977. Under the CWA, EPA has implemented pollution control programs such as setting wastewater standards for industry. We have also set water quality standards for all contaminants in surface waters. The CWA made it unlawful to discharge any pollutant from a point source into navigable waters, unless a permit was obtained. EPA's National Pollutant Discharge Elimination System (NPDES) permit program controls discharges. Point sources are discrete conveyances such as pipes or man-made ditches. Individual homes that are connected to a municipal system, use a septic system, or do not have a surface discharge do not need an NPDES permit; however, industrial, municipal, and other facilities must obtain permits if their discharges go directly to surface waters.
Contributing Partner: UNT Libraries
Clearing the Waters: A focus on water quality solutions

Clearing the Waters: A focus on water quality solutions

Date: March 2010
Creator: Palanaippan, Meena; Gleick, Peter H.; Allen, Lucy; Cohen, Michael J.; Christian-Smith, Juliet; Smith, Courtney et al.
Description: This report discusses global water issues and offers a variety of proposals for countering the degradation of freshwater ecosystems for the benefit of public health and the environment.
Contributing Partner: UNT Libraries
Water Pollution: EPA Has Improved Its Review of Effluent Guidelines but Could Benefit from More Information on Treatment Technologies

Water Pollution: EPA Has Improved Its Review of Effluent Guidelines but Could Benefit from More Information on Treatment Technologies

Date: September 10, 2012
Creator: United States. Government Accountability Office.
Description: A letter report issued by the Government Accountability Office with an abstract that begins "The Environmental Protection Agency (EPA) uses a two-phase process to identify industrial categories potentially needing new or revised effluent guidelines to help reduce their pollutant discharges. EPA’s 2002 draft Strategy for National Clean Water Industrial Regulations was the foundation for EPA’s process. In the first, or “screening,” phase, EPA uses data from two EPA databases to rank industrial categories according to the total toxicity of their wastewater. Using this ranking, public comments, and other considerations, EPA has identified relatively few industrial categories posing the highest hazard for the next, or “further review,” phase. In this further review phase, EPA evaluates the categories to identify those that are appropriate for new or revised guidelines because treatment technologies are available to reduce pollutant discharges. Since 2003, EPA has regularly screened the 58 categories for which it has issued effluent guidelines, as well as some potential new industrial categories, and it has identified 12 categories for its further review phase. Of these 12 categories, EPA selected 3 for updated or new effluent guidelines. EPA chose not to set new guidelines for the others."
Contributing Partner: UNT Libraries Government Documents Department
How Healthy is the Upper Trinity River?: Biological and Water Quality Perspectives

How Healthy is the Upper Trinity River?: Biological and Water Quality Perspectives

Date: 1990
Creator: Jensen, Ric
Description: This conference report contains discussions and papers from a symposium hosted at Texas Christian University, in Fort Worth, Texas, examining the ecological health of the Upper Trinity River, and the impacts of various human activity, such as agriculture, urbanization, and waste management. The papers cover the effect of water quality on urban rivers, long-term water quality trends in the Trinity River, solutions that may improve water quality in the river, as well as biological, agricultural and waste-water issues.
Contributing Partner: UNT Libraries
Temporal and Spatial Comparisons of Ambient Toxicity of the Trinity River in Relationship to an Effluent

Temporal and Spatial Comparisons of Ambient Toxicity of the Trinity River in Relationship to an Effluent

Date: December 1993
Creator: Hall, David B., 1958-
Description: A toxicological study was initiated because of concerns about allegations that the Texas Water Commission that effluent from the Dallas Central Wastewater Treatment Plant, which discharges into the Trinity River, was affecting downstream water quality. Monthly, flow-weighted composite effluent samples were collected. Grab samples were also collected upstream and downstream from the effluent from April 1989 to August 1991. Toxicity tests were conducted on these samples using Ceriodaphnia dubia as the test organism. Samples were collected four times during this study in which rainfall occurred prior to sampling. In every instance, this "first flush" of the watershed during a rising hydrograph was toxic to C. dubia upstream. Analyzing toxicity by season resulted in a statistically significantly lower neonate production in the effluent than in the river samples during the months of June, July, and August. This impact on neonate production was suspected of being caused by organic pesticides which are used for insect control on lawns. The effluent was never acutely toxic to C. dubia. Primarily, toxic occurrences in either the effluent or the river samples were primarily of a chronic nature. Overall, survival of C. dubia was affected more frequently at the upstream site than in the effluent or ...
Contributing Partner: UNT Libraries
Quantitative Analysis of Water and Biological Samples for Determination of Haleogenated Organics in the Upper Trinity River, Texas : Final Technical Report

Quantitative Analysis of Water and Biological Samples for Determination of Haleogenated Organics in the Upper Trinity River, Texas : Final Technical Report

Date: 1976
Creator: Johnson, David E.
Description: This study had three objectives: 1) to develop a method for the quantitative determination of total organic bound chlorine in water and biological samples using Source-Excited X-Ray Fluorescence, 2) to provide training in the use of analytical techniques for students from different disciplines, and 3) to use an interdisciplinary approach involving students of biology, chemistry, and physics to investigate a complex environmental problem. Only the first objective is treated in detail in this volume.
Contributing Partner: UNT Institute of Applied Sciences
Experiment Station Work, [Volume] 4

Experiment Station Work, [Volume] 4

Date: 1898
Creator: United States. Office of Experiment Stations.
Description: Bulletin issued by the U. S. Department of Agriculture compiling selected articles from the Agricultural Experiment Stations. This bulletin contains articles on: Pure Water, Loss of Soil Fertility, Availability of Fertilizers, Seed Selection, Jerusalem Artichokes, Kafir Corn, Thinning Fruit, Use of Low-Grade Apples, Cooking Vegetables, Condimental Feeding Stuffs, Steer and Heifer Beef, Swells in Canned Vegetables.
Contributing Partner: UNT Libraries Government Documents Department
Evaluation of Adsorption and Microcoulometric Methods for Determination of Halogenated Organic Compounds in Water

Evaluation of Adsorption and Microcoulometric Methods for Determination of Halogenated Organic Compounds in Water

Date: May 1980
Creator: Kinstley, Warren O.
Description: None
Contributing Partner: UNT Libraries
An Investigation of Naturally Occurring Tastes and Odors from Fresh Waters

An Investigation of Naturally Occurring Tastes and Odors from Fresh Waters

Date: May 1955
Creator: Pipes, Wesley O'Feral, Jr.
Description: The Problem of the cause and control of tastes and odors in water supplies has been the subject of a great many investigations during the last half-century; however, many questions in this field remain to be answered. Theories relating to the cause of tastes and odors occurring in water are still rather numerous and, at present, only a few of them are compatible. Although several procedures have been employed for the eradication of tastes and odors from water supplies, none of them are completely successful.
Contributing Partner: UNT Libraries
Comparative Chemistry of Thermally Stressed North Lake and Its Water Source, Elm Fork Trinity River

Comparative Chemistry of Thermally Stressed North Lake and Its Water Source, Elm Fork Trinity River

Date: December 1976
Creator: Sams, Barry L.
Description: To better understand abiotic dynamics in Southern reservoirs receiving heated effluents, water was analyzed before and after impoundment in 330 ha North Lake. Macronutrients, metals, and chlorinated hydrocarbons were measured. Concentrations of nutrients and metals in sediments were quantified in this 2 yr study. River water prior to impoundment contained 16 times more total phosphorus, and supported 23 times more Selenastrum capricornutum cells in an algal assay than reservoir water. The reservoir has essentially no drainage and since evaporation is high, the concentrations of many dissolved solids have increased since the reservoir was filled in 1958. North Lake is now phosphorus limited. Apparently altered chemical equilibria have caused precipitation or adsorption of phosphorus with calcium and iron.
Contributing Partner: UNT Libraries