"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
ISBN: | 9780309482790 |
Publication date: | 11th December 2018 |
Author: | Engineering, and Medicine US National Academies of Sciences |
Publisher: | The National Academies Press |
Format: | Paperback |
Series: | A Consensus Study Report of the National Academies of Sciences Engineering Medicine |
Genres: |
Pollution and threats to the environment |