New York City, New York Water Outage Today

Who runs the water in New York City: system profile

New York City System is the water system EPA lists for New York City, serving about 8,271,000 people. Customers know it as NYC Department of Environmental Protection (DEP); the name on your bill is the one to call.

Source water and treatment in New York City

Tap water in New York City starts as surface water. New York City System takes it from West Branch Reservoir Del9, West Branch Reservoir Del10, and Kensico Reservoir Del18 and runs it through treatment before it reaches the mains. Treatment points named in EPA's facility list include Hillview Treatment Plant (900Mg), Jerome Park Treatment Plant (820Mg), and New Croton Treatment Plant.

The outage angle. A surface-water system depends on its plant staying online. If the plant, the raw-water pumps or the power feeding them fails, pressure can fall across the entire service area at once, and a precautionary boil notice tends to cover whole zones rather than the single street of a main break.

Main breaks and shutoffs in New York City: the usual causes

Water outages are local, so the likely cause depends on weather, pipe age and the grid. For New York City, these stand out.

• Freezing weather. New York City sees about 47 days a year with a low at or below 32°F, and 7 days at or below 20°F. The coldest morning in the 2015 through 2025 record came on February 20, 2015. The longest stretch with highs that never rose above freezing ran 9 days, ending January 3, 2018. Frozen service lines and meters cause single-address outages, while ground frost and thaw cycles crack older mains and produce the street-wide breaks.
• Older neighborhoods and pipe. 71.8% of occupied homes in New York City were built before 1970, against 35.5% nationally. Streets of that age tend to sit on cast iron and early steel mains that are near or past their design life, which is where most breaks start.
• Tropical storms and hurricanes. Storm surge, flooding and multi-day power cuts are the main threat to treatment plants and pump stations in New York. Utilities in the region routinely issue precautionary boil notices after a storm, even where nothing is found in the water.
• Flooding and heavy rain. NOAA logged 20 flood, flash flood and heavy rain reports in New York County from 2015 through 2026, and 15 days a year bring an inch of rain or more. Floodwater can undercut pipe crossings, swamp pump stations and overload treatment plants, and a notice to boil water often follows when it enters the system.
• Damage from other crews. Water mains share the ground with gas, power and telecom lines, and a strike by any contractor can dry up a block in seconds.
• Scheduled work, or a fault inside your own home. Utilities warn customers before a planned shutoff. If nothing was announced and the neighbors are fine, the cause is probably your shutoff valve, meter or pressure regulator.

Freeze, heat and rain: the New York City weather record

Main break season in New York City runs from late fall into early spring, with the coldest stretch around December through February.

These counts come from a gridded reanalysis, which smooths out single-day extremes and can differ by a few degrees from an airport thermometer. Use them to compare seasons and years, not as official station records.

New York City boil water notices and EPA compliance record

EPA lists 1 health-based violation for New York City System since 2015.

Most recent health-based entries:

• February 2017: A treatment technique violation

Boil water notices in New York City are precautions, not findings. When pressure drops, NYC Department of Environmental Protection (DEP) tells affected customers to boil water until two rounds of lab tests are clean, a process that normally takes 24 to 48 hours after service is restored, under oversight from the New York State Department of Health and county health departments.

What the lead tests and housing age say about New York City

The most recent 90th-percentile lead result filed for New York City System is 10 ppb (2024). The federal action level is 15 ppb, so that result is under it, but not by much.

The age of the housing matters more than the utility's test average: 71.8% of occupied homes in New York City predate 1970 and 1986 was the year lead pipe and solder were banned. Flush the cold tap after an outage and ask NYC Department of Environmental Protection (DEP) whether your service line is on its lead inventory.

Restoration times for water outages in New York City

Most repairs of an ordinary main break in New York City take half a day once the crew is on site. Bigger mains, deep bury and busy roads stretch that to a day or more. With 8,271,000 people on the system, a break on a main that feeds a whole district can leave thousands of homes dry at once, and crews may close valves several blocks away to isolate it.

NYC Department of Environmental Protection (DEP) will post an estimated restoration time for a break that affects many customers; ask for the repair crew's estimate when you call.

Preparing for a long water outage in New York City

Census figures put the typical New York City household at about 2.5 people. At one gallon per person per day that is 8 gallons for three days or 36 gallons for a two-week supply.

• 48.9% of homes are in buildings with 20 or more units. Upper floors lose pressure first, and rooftop tanks and booster pumps depend on building power.
• 67.2% of households rent. Tell your landlord or property manager about a leak or outage right away, since the shutoff valve may be theirs.
• Do not forget the water heater: the tank holds roughly 30 to 50 gallons you can drink after it is switched off and allowed to cool.
• Fill the bathtub and a few large pots as soon as you hear a break is likely; that water is for flushing and washing, not drinking.

New York City versus neighboring water utilities

Water outage pages for nearby cities

Jersey City, NJ · Newark, NJ · Yonkers, NY · Mount Vernon, NY