A Compilation of Water Quality Goals
Author : Jon Bruce Marshack
Publisher :
Page : 0 pages
File Size : 26,35 MB
Release : 2000
Category : Water quality
ISBN :
Author : Jon Bruce Marshack
Publisher :
Page : 0 pages
File Size : 26,35 MB
Release : 2000
Category : Water quality
ISBN :
Author : United States. Federal Aviation Administration
Publisher :
Page : 496 pages
File Size : 11,81 MB
Release : 1991
Category : Airspace (Law)
ISBN :
Author : Texas
Publisher :
Page : 548 pages
File Size : 35,85 MB
Release : 1972
Category : Water
ISBN :
Author : National Research Council
Publisher : National Academies Press
Page : 422 pages
File Size : 35,14 MB
Release : 2000-08-17
Category : Science
ISBN : 0309069483
Environmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and scientists predict worsening problems in the years ahead. Clean Coastal Waters explains technical aspects of nutrient over-enrichment and proposes both immediate local action by coastal managers and a longer-term national strategy incorporating policy design, classification of affected sites, law and regulation, coordination, and communication. Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and other cases, the book explains how nutrients work in the environment, why nitrogen is important, how enrichment turns into over-enrichment, and why some environments are especially susceptible. Economic as well as ecological impacts are examined. In addressing abatement strategies, the committee discusses the importance of monitoring sites, developing useful models of over-enrichment, and setting water quality goals. The book also reviews voluntary programs, mandatory controls, tax incentives, and other policy options for reducing the flow of nutrients from agricultural operations and other sources.
Author : National Research Council
Publisher : National Academies Press
Page : 276 pages
File Size : 21,40 MB
Release : 2012-07-17
Category : Science
ISBN : 0309224624
Expanding water reuse-the use of treated wastewater for beneficial purposes including irrigation, industrial uses, and drinking water augmentation-could significantly increase the nation's total available water resources. Water Reuse presents a portfolio of treatment options available to mitigate water quality issues in reclaimed water along with new analysis suggesting that the risk of exposure to certain microbial and chemical contaminants from drinking reclaimed water does not appear to be any higher than the risk experienced in at least some current drinking water treatment systems, and may be orders of magnitude lower. This report recommends adjustments to the federal regulatory framework that could enhance public health protection for both planned and unplanned (or de facto) reuse and increase public confidence in water reuse.
Author :
Publisher :
Page : 60 pages
File Size : 11,74 MB
Release : 1998
Category : Water quality
ISBN :
Author : Intergovernmental Task Force on Monitoring Water Quality (U.S.)
Publisher :
Page : 44 pages
File Size : 24,5 MB
Release : 1995
Category : Water quality
ISBN :
In response to increased technological advances and burgeoning demands on available water supplies, the federal government and the private sector are joining efforts to reshape the network and broaden the focus of water quality monitoring efforts in the United States.
Author : National Research Council
Publisher : National Academies Press
Page : 569 pages
File Size : 13,67 MB
Release : 2000-02-17
Category : Nature
ISBN : 0309172683
In 1997, New York City adopted a mammoth watershed agreement to protect its drinking water and avoid filtration of its large upstate surface water supply. Shortly thereafter, the NRC began an analysis of the agreement's scientific validity. The resulting book finds New York City's watershed agreement to be a good template for proactive watershed management that, if properly implemented, will maintain high water quality. However, it cautions that the agreement is not a guarantee of permanent filtration avoidance because of changing regulations, uncertainties regarding pollution sources, advances in treatment technologies, and natural variations in watershed conditions. The book recommends that New York City place its highest priority on pathogenic microorganisms in the watershed and direct its resources toward improving methods for detecting pathogens, understanding pathogen transport and fate, and demonstrating that best management practices will remove pathogens. Other recommendations, which are broadly applicable to surface water supplies across the country, target buffer zones, stormwater management, water quality monitoring, and effluent trading.
Author : National Research Council
Publisher : National Academies Press
Page : 611 pages
File Size : 41,20 MB
Release : 2009-03-17
Category : Nature
ISBN : 0309125391
The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.
Author : National Research Council
Publisher : National Academies Press
Page : 252 pages
File Size : 33,10 MB
Release : 2008-02-08
Category : Nature
ISBN : 0309177812
The Mississippi River is, in many ways, the nation's best known and most important river system. Mississippi River water quality is of paramount importance for sustaining the many uses of the river including drinking water, recreational and commercial activities, and support for the river's ecosystems and the environmental goods and services they provide. The Clean Water Act, passed by Congress in 1972, is the cornerstone of surface water quality protection in the United States, employing regulatory and nonregulatory measures designed to reduce direct pollutant discharges into waterways. The Clean Water Act has reduced much pollution in the Mississippi River from "point sources" such as industries and water treatment plants, but problems stemming from urban runoff, agriculture, and other "non-point sources" have proven more difficult to address. This book concludes that too little coordination among the 10 states along the river has left the Mississippi River an "orphan" from a water quality monitoring and assessment perspective. Stronger leadership from the U.S. Environmental Protection Agency (EPA) is needed to address these problems. Specifically, the EPA should establish a water quality data-sharing system for the length of the river, and work with the states to establish and achieve water quality standards. The Mississippi River corridor states also should be more proactive and cooperative in their water quality programs. For this effort, the EPA and the Mississippi River states should draw upon the lengthy experience of federal-interstate cooperation in managing water quality in the Chesapeake Bay.