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Author : Norbert Dee,Neil L. Drobny,United States. Environmental Protection Agency
Publisher : Unknown
Page : 44 pages
File Size : 53,9 Mb
Release : 1972
Category : Ecology
ISBN : UIUC:30112104107351
Author : United States. Environmental Protection Agency
Publisher : Unknown
Page : 120 pages
File Size : 51,5 Mb
Release : 1977
Category : Water quality management
ISBN : UIUC:30112070126112
Author : U S Environmental Protection Agency
Publisher : Scholar's Choice
Page : 58 pages
File Size : 53,9 Mb
Release : 2015-02-16
Category : Electronic
ISBN : 1298050464
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author : Wayne S. Davis,Thomas P. Simon
Publisher : CRC Press
Page : 434 pages
File Size : 51,7 Mb
Release : 1995-03-03
Category : Technology & Engineering
ISBN : 0873718941
Biological Assessment and Criteria presents a state-of-the-art overview of the applications of biological assessments and biocriteria for water quality management in fresh waters. The book presents case studies which illustrate how bioassessment has been used to identify and diagnose water quality problems. It also provides examples of the use of qualitative and quantitative biocriteria as regulatory tools to complement water quality criteria and standards. The first book to present the technical foundation, rationale, program and policy relevance, and legal basis for the most accurate tools used to assess freshwater natural resource and regulatory efforts, this book provides useful and timely information for water quality managers.
Author : United States. Environmental Protection Agency. Water Quality Office
Publisher : Unknown
Page : 112 pages
File Size : 50,9 Mb
Release : 1971
Category : Water quality management
ISBN : UCR:31210024933226
Author : United States. Environmental Protection Agency,United States. Environmental Protection Agency. Water Quality Office
Publisher : Unknown
Page : 68 pages
File Size : 51,7 Mb
Release : 1971
Category : Regional planning
ISBN : MINN:30000010554222
Author : Anonim
Publisher : Unknown
Page : 64 pages
File Size : 50,5 Mb
Release : 1980
Category : Electronic
ISBN : NWU:35556031035611
Author : United States. Environmental Protection Agency. Water Quality Office
Publisher : Unknown
Page : 72 pages
File Size : 45,9 Mb
Release : 1971
Category : Water quality management
ISBN : HARVARD:32044031888118
Author : United States. Environmental Protection Agency
Publisher : Unknown
Page : 356 pages
File Size : 49,7 Mb
Release : 1976
Category : Water quality management
ISBN : IND:30000099435350
Author : Indiana University. School of Public and Environmental Affairs
Publisher : Unknown
Page : 52 pages
File Size : 53,8 Mb
Release : 1973
Category : Water
ISBN : IND:30000106047735
Author : Deborah V Chapman
Publisher : CRC Press
Page : 658 pages
File Size : 50,8 Mb
Release : 1996-08-22
Category : Science
ISBN : 9780419215905
This guidebook, now thoroughly updated and revised in its second edition, gives comprehensive advice on the designing and setting up of monitoring programmes for the purpose of providing valid data for water quality assessments in all types of freshwater bodies. It is clearly and concisely written in order to provide the essential information for all agencies and individuals responsible for the water quality.
Author : United States. Environmental Protection Agency. Water Planning Division
Publisher : Unknown
Page : 128 pages
File Size : 41,6 Mb
Release : 1980
Category : Water quality
ISBN : UCAL:C3110505
Author : United States. Environmental Protection Agency
Publisher : Unknown
Page : 100 pages
File Size : 45,5 Mb
Release : 1976
Category : Water
ISBN : UIUC:30112029021786
Author : National Research Council,Division on Earth and Life Studies,Commission on Geosciences, Environment and Resources,Water Science and Technology Board,Committee to Assess the Scientific Basis of the Total Maximum Daily Load Approach to Water Pollution Reduction
Publisher : National Academies Press
Page : 122 pages
File Size : 52,7 Mb
Release : 2001-07-24
Category : Political Science
ISBN : 9780309170703
Over the last 30 years, water quality management in the United States has been driven by the control of point sources of pollution and the use of effluent-based water quality standards. Under this paradigm, the quality of the nation's lakes, rivers, reservoirs, groundwater, and coastal waters has generally improved as wastewater treatment plants and industrial dischargers (point sources) have responded to regulations promulgated under authority of the 1972 Clean Water Act. These regulations have required dischargers to comply with effluent-based standards for criteria pollutants, as specified in National Pollutant Discharge Elimination System (NPDES) permits issued by the states and approved by the U.S. Environmental Protection Agency (EPA). Although successful, the NPDES program has not achieved the nation's water quality goals of "fishable and swimmable" waters largely because discharges from other unregulated nonpoint sources of pollution have not been as successfully controlled. Today, pollutants such as nutrients and sediment, which are often associated with nonpoint sources and were not considered criteria pollutants in the Clean Water Act, are jeopardizing water quality, as are habitat destruction, changes in flow regimes, and introduction of exotic species. This array of challenges has shifted the focus of water quality management from effluent-based to ambient- based water quality standards. Given the most recent lists of impaired waters submitted to EPA, there are about 21,000 polluted river segments, lakes, and estuaries making up over 300,000 river and shore miles and 5 million lake acres. The number of TMDLs required for these impaired waters is greater than 40,000. Under the 1992 EPA guidance or the terms of lawsuit settlements, most states are required to meet an 8- to 13-year deadline for completion of TMDLs. Budget requirements for the program are staggering as well, with most states claiming that they do not have the personnel and financial resources necessary to assess the condition of their waters, to list waters on 303d, and to develop TMDLs. A March 2000 report of the General Accounting Office (GAO) highlighted the pervasive lack of data at the state level available to set water quality standards, to determine what waters are impaired, and to develop TMDLs. This report represents the consensus opinion of the eight-member NRC committee assembled to complete this task. The committee met three times during a three-month period and heard the testimony of over 40 interested organizations and stakeholder groups. The NRC committee feels that the data and science have progressed sufficiently over the past 35 years to support the nation's return to ambient-based water quality management. Given reasonable expectations for data availability and the inevitable limits on our conceptual understanding of complex systems, statements about the science behind water quality management must be made with acknowledgment of uncertainties. This report explains that there are creative ways to accommodate this uncertainty while moving forward in addressing the nation's water quality challenges.
Author : United States. Environmental Protection Agency. Water Planning Division
Publisher : Unknown
Page : 56 pages
File Size : 44,5 Mb
Release : 1979
Category : Water quality management
ISBN : IND:30000043843121
