New York City Water Supply Studies
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Review Of The New York City Department Of Environmental Protection Operations Support Tool For Water Supply
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Author : National Academies of Sciences, Engineering, and Medicine
language : en
Publisher: National Academies Press
Release Date : 2019-01-11
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 has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-11 with Nature categories.
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.
Review Of The New York City Watershed Protection Program
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Author : National Academies of Sciences, Engineering, and Medicine
language : en
Publisher: National Academies Press
Release Date : 2021-01-04
Review Of The New York City Watershed Protection Program written by National Academies of Sciences, Engineering, and Medicine and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-04 with Science categories.
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.
Review Of The New York City Department Of Environmental Protection Operations Support Tool For Water Supply
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Author : 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
language : en
Publisher:
Release Date : 2018
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 has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Water-supply categories.
"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
Watershed Management For Potable Water Supply
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2000-02-17
Watershed Management For Potable Water Supply written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-02-17 with Nature categories.
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.
New York City Water Supply Studies
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Author :
language : en
Publisher:
Release Date : 1996
New York City Water Supply Studies written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Water categories.
Natural And Engineered Solutions For Drinking Water Supplies
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Author : Emily Alcott
language : en
Publisher: CRC Press
Release Date : 2013-03-26
Natural And Engineered Solutions For Drinking Water Supplies written by Emily Alcott and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-26 with Nature categories.
Illuminating opportunities to develop a more integrated approach to municipal water system design, Natural and Engineered Solutions for Drinking Water Supplies: Lessons from the Northeastern United States and Directions for Global Watershed Management explores critical factors in the decision-making processes for municipal water system delivery. The book offers vital insights to help inform management decisions on drinking water supply issues in other global regions in our increasingly energy- and carbon-constrained world. The study evaluates how six cities in the northeastern United States have made environmental, economic, and social decisions and adopted programs to protect and manage upland forests to produce clean drinking water throughout their long histories. New York, New York; Boston and Worcester, Massachusetts; New Haven and Bridgeport, Connecticut; and Portland, Maine have each managed city watersheds under different state regulations, planning and development incentives, biophysical constraints, social histories, and ownerships. Some of the overarching questions the book addresses relate to how managers should optimize the investments in their drinking water systems. What is the balance between the use of concrete/steel treatment plants (gray infrastructure) and forested/grassland/wetland areas (green infrastructure) to protect surface water quality? The case studies compare how engineered and/or natural systems are employed to protect water quality. The conclusions drawn establish that it makes environmental, economic, and social sense to protect and manage upland forests to produce water as a downstream service. Such stewardship is far more preferable than developing land and using engineering, technology, and artificial filtration as a solution to maintaining clean drinking water. Lessons learned from this insightful study provide effective recommendations for managers and policymakers that reflect the scientific realities of how forests and engineering can be best integrated into effective watershed management programs and under what circumstances.
Empire Of Water
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Author : David Soll
language : en
Publisher: Cornell University Press
Release Date : 2013-03-26
Empire Of Water written by David Soll and has been published by Cornell University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-26 with History categories.
Supplying water to millions is not simply an engineering and logistical challenge. As David Soll shows in his finely observed history of the nation’s largest municipal water system, the task of providing water to New Yorkers transformed the natural and built environment of the city, its suburbs, and distant rural watersheds. Almost as soon as New York City completed its first municipal water system in 1842, it began to expand the network, eventually reaching far into the Catskill Mountains, more than one hundred miles from the city. Empire of Water explores the history of New York City’s water system from the late nineteenth century to the early twenty-first century, focusing on the geographical, environmental, and political repercussions of the city’s search for more water. Soll vividly recounts the profound environmental implications for both city and countryside. Some of the region’s most prominent landmarks, such as the High Bridge across the Harlem River, Central Park’s Great Lawn, and the Ashokan Reservoir in Ulster County, have their origins in the city’s water system. By tracing the evolution of the city’s water conservation efforts and watershed management regime, Soll reveals the tremendous shifts in environmental practices and consciousness that occurred during the twentieth century. Few episodes better capture the long-standing upstate-downstate divide in New York than the story of how mountain water came to flow from spigots in Brooklyn and Manhattan. Soll concludes by focusing on the landmark watershed protection agreement signed in 1997 between the city, watershed residents, environmental organizations, and the state and federal governments. After decades of rancor between the city and Catskill residents, the two sides set aside their differences to forge a new model of environmental stewardship. His account of this unlikely environmental success story offers a behind the scenes perspective on the nation’s most ambitious and wide-ranging watershed protection program.
Water Meters And The Elimination Of Waste
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Author : New York (N.Y.). Water Works Research Bureau
language : en
Publisher:
Release Date : 1927
Water Meters And The Elimination Of Waste written by New York (N.Y.). Water Works Research Bureau and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1927 with Water-supply categories.
New York City S Water Supply
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Author : Sarah Elizabeth Blake
language : en
Publisher:
Release Date : 2015
New York City S Water Supply written by Sarah Elizabeth Blake and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
This project works to fill a gap in political economic environmental theories through a historical analysis of the New York City water supply and its impacts on the environment and growth patterns of rural NY State. Past research has focused on water scarcity and the degradation of rural environments due to the overuse of resources by the corresponding urban areas. This project focuses on a region where water is abundant and the negative impact on the rural communities is growth related, not environmentally based. I argue that NYC presents a case that is unique to the U.S, but can also be generalized to other world cities that are also water-rich, as a constantly growing urban area whose need for water has led to environmental preservation in surrounding rural areas. NYC also provides a valuable internal comparison between the rural, unfiltered West of the Hudson (WOH) watershed and the suburbanized, filtered East of the Hudson (EOH) watershed. Environmental theories argue that capitalist growth is inextricably linked with environmental degradation. These theories are largely focused on land use and have ignored the role of water in urban growth. They have also neglected how historical land use can impact future growth directions. Research on the subject of NYC helps to address this need for a historical understanding of urban growth, as an urban area that is relatively small spatially. Comparative historical analysis finds that the creation of NYC's water supply over 100 years ago modified the growth patterns of the WOH watershed region due to land acquisition. In 1990, NYC once again reached into its hinterlands to impose strict environmental regulations in accordance with the EPA's surface water filtration ruling. Ultimately, this allowed for the City to leave 90% of its water unfiltered and save over 6 billion in filtration costs, which allowed for continued growth in NYC. With the case of NYC, we can see that politics surrounding urban growth can lead to environmental preservation. This calls for a closer look at prominent environmental theories.
Compendium Of Water Supply Studies
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Author : New York (State). Temporary State Commission on the Water Supply Needs of Southeastern New York
language : en
Publisher:
Release Date : 1972
Compendium Of Water Supply Studies written by New York (State). Temporary State Commission on the Water Supply Needs of Southeastern New York and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Water resources development categories.