Virginia Nonpoint Source Pollution

Virginia Nonpoint Source Pollution PDF Author: Virginia. Division of Soil and Water Conservation
Publisher:
ISBN:
Category : Nonpoint source pollution
Languages : en
Pages : 208

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Virginia Nonpoint Source Pollution

Virginia Nonpoint Source Pollution PDF Author: Virginia. Division of Soil and Water Conservation
Publisher:
ISBN:
Category : Nonpoint source pollution
Languages : en
Pages : 208

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Virginia Nonpoint Source Pollution Watershed Assessment Report

Virginia Nonpoint Source Pollution Watershed Assessment Report PDF Author:
Publisher:
ISBN:
Category : Nonpoint source pollution
Languages : en
Pages : 0

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Watershed Management for Potable Water Supply

Watershed Management for Potable Water Supply PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309172683
Category : Nature
Languages : en
Pages : 569

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Book Description
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.

Perspectives on Nonpoint Source Pollution

Perspectives on Nonpoint Source Pollution PDF Author:
Publisher:
ISBN:
Category : Agricultural pollution
Languages : en
Pages : 532

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Geographical Information Systems in Hydrology

Geographical Information Systems in Hydrology PDF Author: V.P. Singh
Publisher: Springer Science & Business Media
ISBN: 9401587450
Category : Science
Languages : en
Pages : 453

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Book Description
The last few years have witnessed an enormous interest in application of GIS in hydrology and water resources. This is partly evidenced by organization of sev eral national and international symposia or conferences under the sponsorship of various professional organizations. This increased interest is, in a large measure, in response to growing public sensitivity to environmental quality and management. The GIS technology has the ability to capture, store, manipulate, analyze, and visualize the diverse sets of geo-referenced data. On the other hand, hydrology is inherently spatial and distributed hydrologic models have large data requirements. The integration of hydrology and GIS is therefore quite natural. The integration involves three major components: (1) spatial data construction, (2) integration of spatial model layers, and (3) GIS and model interface. GIS can assist in design, calibration, modification and comparison of models. This integration is spreading worldwide and is expected to accelerate in the foreseeable future. Substantial op portunities exist in integration of GIS and hydrology. We believe there are enough challenges in use of GIS for conceptualizing and modeling complex hydrologic processes and for globalization of hydrology. The motivation for this book grew out of the desire to provide under one cover a range of applications of GIS tech nology in hydrology. It is hoped that the book will stimulate others to write more comprehensive texts on this subject of growing importance.

Preservation of Instream Flows

Preservation of Instream Flows PDF Author: Verne W. House
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 20

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Agricultural Nonpoint Source Pollution Management in Virginia

Agricultural Nonpoint Source Pollution Management in Virginia PDF Author: Waldon R. Kerns
Publisher:
ISBN:
Category : Agricultural pollution
Languages : en
Pages : 146

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Achieving Nutrient and Sediment Reduction Goals in the Chesapeake Bay

Achieving Nutrient and Sediment Reduction Goals in the Chesapeake Bay PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309210828
Category : Political Science
Languages : en
Pages : 258

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Book Description
The Chesapeake Bay is North America's largest and most biologically diverse estuary, as well as an important commercial and recreational resource. However, excessive amounts of nitrogen, phosphorus, and sediment from human activities and land development have disrupted the ecosystem, causing harmful algae blooms, degraded habitats, and diminished populations of many species of fish and shellfish. In 1983, the Chesapeake Bay Program (CBP) was established, based on a cooperative partnership among the U.S. Environmental Protection Agency (EPA), the state of Maryland, and the commonwealths of Pennsylvania and Virginia, and the District of Columbia, to address the extent, complexity, and sources of pollutants entering the Bay. In 2008, the CBP launched a series of initiatives to increase the transparency of the program and heighten its accountability and in 2009 an executive order injected new energy into the restoration. In addition, as part of the effect to improve the pace of progress and increase accountability in the Bay restoration, a two-year milestone strategy was introduced aimed at reducing overall pollution in the Bay by focusing on incremental, short-term commitments from each of the Bay jurisdictions. The National Research Council (NRC) established the Committee on the Evaluation of Chesapeake Bay Program Implementation for Nutrient Reduction in Improve Water Quality in 2009 in response to a request from the EPA. The committee was charged to assess the framework used by the states and the CBP for tracking nutrient and sediment control practices that are implemented in the Chesapeake Bay watershed and to evaluate the two-year milestone strategy. The committee was also to assess existing adaptive management strategies and to recommend improvements that could help CBP to meet its nutrient and sediment reduction goals. The committee did not attempt to identify every possible strategy that could be implemented but instead focused on approaches that are not being implemented to their full potential or that may have substantial, unrealized potential in the Bay watershed. Because many of these strategies have policy or societal implications that could not be fully evaluated by the committee, the strategies are not prioritized but are offered to encourage further consideration and exploration among the CBP partners and stakeholders.

Managing Nonpoint Sources of Pollution

Managing Nonpoint Sources of Pollution PDF Author: Jodee Kuske
Publisher:
ISBN:
Category : Agricultural pollution
Languages : en
Pages : 76

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Water Quality Field Guide

Water Quality Field Guide PDF Author:
Publisher:
ISBN:
Category : Water quality
Languages : en
Pages : 72

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Book Description
"The purposes of this guide are to provide information to Soil Conservation Service (SCS) Field Office Personnel on the control of nonpoint sources of pollution from agricultural lands and to incorporate a water quality perspective into all conservation planning. Nonpoint source pollution is both a relatively concern and a complex phenomenon with many unknowns. Knowing the extent to which agricultural sources contribute to the total pollution load, the extent to which various control practices decrease this load, and the effect of reducing the pollutants delivered to a water body are basic to the achievement of water quality."--Page 3