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Author : Oliver A. Houck
Publisher : Environmental Law Institute
Page : 378 pages
File Size : 52,8 Mb
Release : 2002
Category : Water
ISBN : 1585760382
The definitive guide to all there is to know about the TMDL requirements of clean water legislation.
Author : Jennifer Ruffolo
Publisher : DIANE Publishing
Page : 59 pages
File Size : 55,8 Mb
Release : 1999
Category : Water
ISBN : 9780788186691
TMDLs (Total Maximum Daily Loading) define how much of a pollutant a water body can tolerate on a daily basis & still meet the relevant water quality standards. All of the sources of the pollutant in the watershed combined, including non-point sources, are limited to discharging no more than that total limit. EPA is suing states to force them to produce TMDLs. A growing number of California's water bodies are either subject to consent decrees to develop TMDLs, or are the subject of notices of intent to file lawsuits that may have that outcome. This report addresses California's many problems in establishing TMDLs for its impaired water bodies.
Author : Anonim
Publisher : DIANE Publishing
Page : 117 pages
File Size : 44,9 Mb
Release : 2024-07-01
Category : Electronic
ISBN : 9781428901018
Author : Anonim
Publisher : Unknown
Page : 56 pages
File Size : 41,5 Mb
Release : 2007
Category : Sediment transport
ISBN : UCR:31210020568125
Author : Anonim
Publisher : Unknown
Page : 140 pages
File Size : 40,7 Mb
Release : 2001
Category : Pathogenic microorganisms
ISBN : UCR:31210025684356
Author : Anonim
Publisher : Unknown
Page : 140 pages
File Size : 50,9 Mb
Release : 1999
Category : Nutrient pollution of water
ISBN : IND:30000096956226
Author : Paul L. Freedman
Publisher : IWA Publishing
Page : 116 pages
File Size : 54,8 Mb
Release : 2003-12-01
Category : Science
ISBN : 9781843396710
Narrative water quality criteria are an integral component of States water quality standards but they pose special problems when incorporated into the TMDL process. The TMDL process is typically a quantitative activity, defining numeric allowable loads necessary to meet a numeric water quality objective. Narrative criteria confound development of quantitative TMDLs, due to the absence of these numeric criteria. The objective of this research was to improve the methods for addressing narrative water quality criteria in the TMDL process. The problems associated with narrative criteria in the TMDL process are known in general terms but, prior to this research, there has not been a thorough review of the use of narrative criteria in TMDLs nor broad guidance on how to address narrative criteria in the TMDL process. The approach taken for this research was to define the range of problems associated with all types of narrative criteria by means of a comprehensive review of 120 narrative TMDLs, and provide guiding principles to help address these problems.
Author : United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Fisheries, Wildlife, and Water
Publisher : Unknown
Page : 606 pages
File Size : 46,8 Mb
Release : 2001
Category : Law
ISBN : UCAL:B5139014
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 : 44,7 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 : Anonim
Publisher : Unknown
Page : 60 pages
File Size : 55,7 Mb
Release : 2002
Category : Water
ISBN : UCR:31210025684349
Author : United States. Congress. Senate. Committee on Environment and Public Works
Publisher : Unknown
Page : 140 pages
File Size : 45,6 Mb
Release : 2000
Category : Law
ISBN : UCAL:B5139004
Author : United States. Congress. Senate. Committee on Appropriations. Subcommittee on VA-HUD-Independent Agencies
Publisher : Unknown
Page : 1204 pages
File Size : 51,9 Mb
Release : 2001
Category : History
ISBN : STANFORD:36105050191753
Author : Anonim
Publisher : Unknown
Page : 1332 pages
File Size : 46,6 Mb
Release : 1985-01-09
Category : Administrative law
ISBN : UIUC:30112059138658
Author : Anonim
Publisher : Unknown
Page : 538 pages
File Size : 52,9 Mb
Release : 2004
Category : Nonpoint source pollution
ISBN : UCR:31210020506554
Author : Anonim
Publisher : Unknown
Page : 58 pages
File Size : 45,7 Mb
Release : 1998
Category : Redwood Creek (Humboldt County, Calif.)
ISBN : UCR:31210025028323