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Inside NYC Water

What Upper Manhattan residents should know about old cast-iron mains

Upper Manhattan—spanning from the heights of Washington Heights down through Harlem—is characterized by its dramatic topography and some of the city’s oldest subterranean infrastructure. For residents of these historic neighborhoods, the condition of the street-level water mains is a daily reality that affects everything from water pressure to the clarity

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Inside NYC Water

Why brown water appears more often on certain Brooklyn blocks

For many Brooklyn residents, “Brown Water” is a frustrating mystery. You turn on the tap after a long day, and instead of clear hydration, you see a rust-colored stream. While it is rarely a health crisis, it is a significant indicator of neighborhood infrastructure dynamics. The frequency of these events

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Inside NYC Water

How Manhattan’s water tunnels actually work beneath your feet

Deep beneath the bustling streets of Manhattan lies a massive, intricate engineering feat that few residents ever see but everyone relies upon: the NYC Water Tunnel System. Far below the subway lines and utility conduits, giant arteries carved through solid bedrock carry over a billion gallons of fresh water every

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