West Coast Whole Effluent Toxicity Wet Policy
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West Coast Whole Effluent Toxicity Wet Policy
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Author :
language : en
Publisher:
Release Date : 1995
West Coast Whole Effluent Toxicity Wet Policy written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Sewage categories.
Whole Effluent Toxicity Wet Control Policy
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Author : United States. Environmental Protection Agency. Office of Water
language : en
Publisher:
Release Date : 1994
Whole Effluent Toxicity Wet Control Policy written by United States. Environmental Protection Agency. Office of Water and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Factory and trade waste categories.
Update On Aquatic Toxicity Whole Effluent Toxicity Wet Issues 2005
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Author : Winona L. Specht
language : en
Publisher:
Release Date : 2005
Update On Aquatic Toxicity Whole Effluent Toxicity Wet Issues 2005 written by Winona L. Specht and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
This paper summarizes recent changes in the field of aquatic toxicity/Whole Effluent Toxicity (WET) testing. There are been numerous legal challenges to the validity of WET testing, both at the federal and state levels, but to date, the regulators have prevailed and WET testing is used as a regulatory tool to ensure that the biota of receiving streams are protected. The most recent ruling at the federal level was on December 10, 2004, when a federal appeals court in the District of Columbia upheld the validity of WET testing. At the state level, at the urging of the South Carolina Manufacturers Alliance, the state legislature passed a law (the South Carolina Aquatic Life Protection Act) in 2004 that requires the South Carolina Department of Health and Environmental Control (DHEC) to evaluate the accuracy and precision of the WET test. As a result, SCDHEC removed WET test limits from several NPDES permits. EPA took issue with the impact of the legislation and SCDHEC's actions, and as a result, EPA has taken over several NPDES permits from SCDHEC and threatened to revoke the state's delegated NPDES permit program. A new Act was signed into law in March 2005, which does not exclude the use of chronic toxicity testing for regulatory compliance. As a result, EPA has turned over the issuance of NPDES permits back to SCDHEC. In December 2004, the U.S. EPA issued the Draft National WET Implementation Guidance document for review and comment. The guidance contains recommendations on the determination of ''reasonable potential'' for toxicity. The EPA's ECOTOX database is a valuable resource of toxicity data for many chemicals. For those cases in which there are no toxicity data or very limited data available, the EPA has developed two models, the Interspecies Correlation Estimation (ICE) and the Acute to Chronic Estimation (ACE), for predicting toxicity. Active areas of research include assessing the uptake of heavy metals via multiple routes of exposure, the development of risk-based criteria for persistent bioaccumulative toxicants, and the new field of computational toxicology, which utilizes modeling tools to predict toxic responses.
Federal Register
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Author :
language : en
Publisher:
Release Date : 1979-08
Federal Register written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979-08 with Delegated legislation categories.
Epa National Publications Catalog
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Author : United States. Environmental Protection Agency
language : en
Publisher:
Release Date :
Epa National Publications Catalog written by United States. Environmental Protection Agency and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Environmental protection categories.
Short Term Methods For Estimating The Chronic Toxicity Of Effluents And Receiving Waters To Freshwater Organisms
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Author :
language : en
Publisher:
Release Date : 1994
Short Term Methods For Estimating The Chronic Toxicity Of Effluents And Receiving Waters To Freshwater Organisms written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Effluent quality categories.
Methods For Measuring The Acute Toxicity Of Effluents And Receiving Waters To Freshwater And Marine Organisms
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Author :
language : en
Publisher: DIANE Publishing
Release Date : 2002
Methods For Measuring The Acute Toxicity Of Effluents And Receiving Waters To Freshwater And Marine Organisms written by and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Water quality biological assessment categories.
Draft Supplement To Functional Equivalent Document For The Proposed Policy For Implementation Of Toxics Standards For Inland Surface Waters Enclosed Bays And Estuaries Of California
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Author :
language : en
Publisher:
Release Date : 1997
Draft Supplement To Functional Equivalent Document For The Proposed Policy For Implementation Of Toxics Standards For Inland Surface Waters Enclosed Bays And Estuaries Of California written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Bays categories.
Third Public Draft Functional Equivalent Document For Policy For Implementation Of Toxics Standards For Inland Surface Waters Enclosed Bays And Estuaries Of California
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Author :
language : en
Publisher:
Release Date : 2000
Third Public Draft Functional Equivalent Document For Policy For Implementation Of Toxics Standards For Inland Surface Waters Enclosed Bays And Estuaries Of California written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Bays categories.
Toxicity Reduction And Toxicity Identification Evaluations For Effluents Ambient Waters And Other Aqueous Media
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Author : Teresa Norberg-King
language : en
Publisher: SETAC
Release Date : 2005
Toxicity Reduction And Toxicity Identification Evaluations For Effluents Ambient Waters And Other Aqueous Media written by Teresa Norberg-King and has been published by SETAC this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Toxicity testing categories.