Download or read book New York City s Long range Water Quality Watershed Protection and Filtration Avoidance Program written by New York (N.Y.). Environmental Protection, Department of and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of the New York City Watershed Protection Program written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2020-12-04 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: New York City's municipal water supply system provides about 1 billion gallons of drinking water a day to over 8.5 million people in New York City and about 1 million people living in nearby Westchester, Putnam, Ulster, and Orange counties. The combined water supply system includes 19 reservoirs and three controlled lakes with a total storage capacity of approximately 580 billion gallons. The city's Watershed Protection Program is intended to maintain and enhance the high quality of these surface water sources. Review of the New York City Watershed Protection Program assesses the efficacy and future of New York City's watershed management activities. The report identifies program areas that may require future change or action, including continued efforts to address turbidity and responding to changes in reservoir water quality as a result of climate change.
Download or read book Review of the New York City Watershed Protection Program written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2021-01-04 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: New York City's municipal water supply system provides about 1 billion gallons of drinking water a day to over 8.5 million people in New York City and about 1 million people living in nearby Westchester, Putnam, Ulster, and Orange counties. The combined water supply system includes 19 reservoirs and three controlled lakes with a total storage capacity of approximately 580 billion gallons. The city's Watershed Protection Program is intended to maintain and enhance the high quality of these surface water sources. Review of the New York City Watershed Protection Program assesses the efficacy and future of New York City's watershed management activities. The report identifies program areas that may require future change or action, including continued efforts to address turbidity and responding to changes in reservoir water quality as a result of climate change.
Download or read book New York City Watershed Protection Program written by United States. Congress. Senate. Committee on Environment and Public Works and published by . This book was released on 2003 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New York City s Long range Water Quality and Watershed Protection Program written by New York (N.Y.). Department of Environmental Protection and published by . This book was released on 1989 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Watershed Management for Potable Water Supply written by National Research Council and published by National Academies Press. This book was released on 2000-02-17 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book New York City s Long term Watershed Protection and Filtration Avoidance Plan written by New York (N.Y.). Department of Environmental Protection and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New York City s 1993 Long term Watershed Protection and Filtration Avoidance Program written by New York (N.Y.). Department of Environmental Protection and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of the New York City Department of Environmental Protection Operations Support Tool for Water Supply written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-01-11 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: New York City's water supply system is one of the oldest, largest, and most complex in the nation. It delivers more than 1.1 billion gallons of water each day from three upstate watersheds (Croton, Catskill, and Delaware) to meet the needs of more than eight million people in the City, one million people in Westchester, Putnam, Orange, and Ulster counties, and millions of commuters and tourists who visit the City throughout the year. The Catskill and Delaware portions, which make up about 90 percent of the supply, receive no filtration or treatment other than disinfection, except for rare instances of high turbidity when a coagulant is added to increase deposition of suspended solids. The remaining 10 percent of the supply comes from the Croton watershed and receives treatment via filtration. The drinking water supply is managed by the Bureau of Water Supply within the New York City Department of Environmental Protection (NYC DEP). To continue to avoid filtration of the Catskill/Delaware portion of the water supply, in 2007, NYC DEP reexamined its control of turbidity in the Catskill portion of the water supply, including both structural improvements to the system and operational changes. The Operations Support Tool (OST) was developed as part of these efforts. OST couples models of reservoir operations and water quality; it uses real-time data on streamflow, snow pack, water quality, reservoir levels, diversions, and releases; and it incorporates streamflow forecastsâ€"all in order to predict future reservoir levels, water delivery to customers, and water quality within the system. These predictions inform the system operators, who then make decisions based on the most current data and forecasts. This report reviews the use of OST in current and future reservoir operations. It considers potential ways in which the City can more effectively use OST, makes recommendations for additional performance measures, and reviews the potential effects of climate change on the City's water supply to help identify and enhance understanding of areas of potential future concern with regard to the use of OST.
Download or read book Assessing New York City s Watershed Protection Program written by and published by . This book was released on 2000 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book How Great Cities are Fed written by Walter Page Hedden and published by . This book was released on 1929 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The United Nations world water development report 2018 written by WWAP and published by UNESCO Publishing. This book was released on 2018-03-26 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidance Manual for Compliance with the Filtration and Disinfection Requirements for Public Water Systems Using Surface Water Sources written by David J. Hiltebrand and published by . This book was released on 1991 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual suggests design operating and performance criteria for specific surface water quality conditions to provide the optimum protection from microbiological contaminants.
Download or read book Watershed Protection as the Primary Tool to Achieve High Quality Drinking Water written by Kate J. Gazzo and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, a cost-effectiveness analysis and multiple case studies of cities ranging from New York City, USA to Bogota, Columbia are discussed to show how watershed protection can reduce the associated costs and risks stemming from impaired water and usually eliminate the need for human engineered treatment. A cost-effectiveness analysis was performed by comparing three municipalities that have obtained Filtration Avoidance Determinations through watershed protection (green infrastructure) compared with three municipalities that have installed human engineered filtration (gray infrastructure). Using turbidity and E. coli as indicators of effectiveness, the results of this analysis determined that human engineered infrastructure is more effective at reducing turbidity levels; however, both methods (human engineered and watershed protection) met all water quality standards. The avoided costs observed in cities that had implemented green infrastructure were oftentimes in the millions and in some cases billions of dollars. One of the most surprising results from this research is that some of the largest cities in the U.S. rely solely upon watershed protection as the primary method to achieve water quality standards. In addition, the long-term value of green infrastructure is far greater than investments in gray infrastructure. Protection strategies implemented by cities range from complete protection through conservation easements, land acquisitions, and designations to management strategies, such as the implementation of agricultural and forestry management practices.
Download or read book Watershed Management for Potable Water Supply written by National Research Council and published by . This book was released on 2000-02-17 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Protection of the New York City Water Supply Land Development Threats and the Programs to Control Them written by Werner Mueller and published by . This book was released on 1999 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Surface Water Treatment Rule under the Safe Drinking Water Act requires that all surface water sources used for drinking water must be filtered, unless the purveyor can demonstrate that the water is of such high quality that filtration is not required. The New York City Department of Environmental Protection (DEP) operates the New York City water supply system and is taking actions to ensure that the water supplied from the Catskill -- Delaware system remains of high enough quality to maintain an avoidance of filtration determination granted by the Environmental Protection Agency (EPA). New watershed rules and regulations have been adopted to govern land development activities, and to address pollutants that may be carried into the water supply system with storm water runoff from new impervious surfaces. This paper presents an overview of the pollution threats presented by new land development, outlines the evolution of the regulatory requirements controlling storm water management, and attempts an assessment of the effectiveness of the current regulatory initiatives. A land development scoring system is proposed to measure the rate of storm water management implementation and the impacts of the new regulations. The result of the research demonstrates that insufficient time has passed since the adoption of the watershed rules and regulations to allow a proper measure of their effectiveness. Finally, the land development scoring system is proposed as a simplified method for use by the DEP in monitoring the effect of the regulations as future land development activities take place.
Download or read book Review of the New York City Department of Environmental Protection Operations Support Tool for Water Supply written by National Academies of Sciences, Engineering, and Medicine (U.S.). Committee to Review the New York City Department of Environmental Protection Operations Support Tool for Water Supply and published by . This book was released on 2018 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: "New York City's water supply system is one of the oldest, largest, and most complex in the nation. It delivers more than 1.1 billion gallons of water each day from three upstate watersheds (Croton, Catskill, and Delaware) to meet the needs of more than eight million people in the City, one million people in Westchester, Putnam, Orange, and Ulster counties, and millions of commuters and tourists who visit the City throughout the year. The Catskill and Delaware portions, which make up about 90 percent of the supply, receive no filtration or treatment other than disinfection, except for rare instances of high turbidity when a coagulant is added to increase deposition of suspended solids. The remaining 10 percent of the supply comes from the Croton watershed and receives treatment via filtration. The drinking water supply is managed by the Bureau of Water Supply within the New York City Department of Environmental Protection (NYC DEP). To continue to avoid filtration of the Catskill/Delaware portion of the water supply, in 2007, NYC DEP reexamined its control of turbidity in the Catskill portion of the water supply, including both structural improvements to the system and operational changes. The Operations Support Tool (OST) was developed as part of these efforts. OST couples models of reservoir operations and water quality; it uses real-time data on streamflow, snow pack, water quality, reservoir levels, diversions, and releases; and it incorporates streamflow forecasts--all in order to predict future reservoir levels, water delivery to customers, and water quality within the system. These predictions inform the system operators, who then make decisions based on the most current data and forecasts. This report reviews the use of OST in current and future reservoir operations. It considers potential ways in which the City can more effectively use OST, makes recommendations for additional performance measures, and reviews the potential effects of climate change on the City's water supply to help identify and enhance understanding of areas of potential future concern with regard to the use of OST"--Publisher's description
