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The Delaware Aqueduct, completed in 1945, taps tributaries of the Delaware River in the western Catskill Mountains and provides approximately half of New York City's water supply. [16] The latter two aqueducts provide 90% of New York City's drinking water, and the watershed for these aqueducts extends a combined 1 million acres (400,000 ha).
NYCDEP manages three upstate supply systems to provide the city's drinking water: the Croton system, the Catskill system, and the Delaware system. The overall distribution system has a storage capacity of 550 billion US gallons (2.1 × 10 9 m 3) and provides over 1 billion US gallons (3,800,000 m 3) per day of water to more than eight million city residents and another one million users in ...
The first pair was Muskegon, Michigan and Grand Rapids, Michigan, making Grand Rapids the first community in the world to add fluoride to its drinking water to try to benefit dental health on January 25, 1945. [25] Kingston, New York was paired with Newburgh, New York. [26] Oak Park, Illinois was paired with Evanston, Illinois.
The New York State Department of Health [25] has primacy for most of the water supply regulation compliance determination and enforcement in New York. The department sets general policy and oversees the local units, which may be district offices, regional offices, or county health departments, who oversee the public water systems.
The Croton Aqueduct or Old Croton Aqueduct was a large and complex water distribution system constructed for New York City between 1837 and 1842. The great aqueducts, which were among the first in the United States, carried water by gravity 41 miles (66 km) from the Croton River in Westchester County to reservoirs in Manhattan.
All water entering New York City's distribution system is treated with chlorine, fluoride, food-grade phosphoric acid, and, in some cases, sodium hydroxide, to comply with the New York State Sanitary Code and federal Safe Drinking Water Act disinfection requirements. Fluoride, at a concentration of one part per million, is added to help prevent ...
Drinking water quality in the United States is generally safe. In 2016, over 90 percent of the nation's community water systems were in compliance with all published U.S. Environmental Protection Agency (US EPA) standards. [1] Over 286 million Americans get their tap water from a community water system.
It is built 250 feet (76 m) below the park surface. It controls the flow of water from the city's Catskill and Delaware systems. These systems provide 90 percent of the city's current drinking water. The Van Cortlandt Park Valve Chamber is 620 feet (190 m) long, 43 feet (13 m) wide and 41 feet (12 m) high.