Cary, North Carolina Water Outage Today

Who runs the water in Cary: system profile

The system behind most taps in Cary is Town of Cary, which EPA records list as serving roughly 227,300 people. Customers know it as Town of Cary Utilities; the name on your bill is the one to call.

Source water and treatment in Cary

Tap water in Cary starts as surface water. Town of Cary takes it from Jordan Lake and runs it through treatment before it reaches the mains. Treatment points named in EPA's facility list include Treatment_Plant_Cary/Apex WTP. After treatment the water is held in 12 storage tanks and reservoirs, which is the buffer that keeps taps running for a few hours after a pump or main fails.

Why this matters when the water stops. 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. EPA lists 7 emergency connections to neighboring systems, which can be opened to move water across a boundary during a failure.

Main breaks and shutoffs in Cary: the usual causes

Which failures hit Cary hardest follows from its weather, its housing stock and how it is supplied.

• Freezing weather. Cary sees about 60 days a year with a low at or below 32°F, and 5 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 8 days, ending January 7, 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.
• Flooding and heavy rain. NOAA logged 196 flood, flash flood and heavy rain reports in Wake County from 2015 through 2026, and 9 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.
• Storm-driven power loss. Thunderstorm wind, hail and tornado reports in Wake County number 484 since 2015. Pump stations and treatment plants that depend on Duke Energy run on the electric grid, so a storm that downs power lines can lower water pressure even when no pipe is damaged.
• Summer demand. Cary has about 21 days a year at or above 95°F, and the hottest day in the record came on June 26, 2025. Lawn irrigation and cooling push demand to its yearly high, so pumps run hard, tanks drain faster than they refill and pressure sags on high ground in the evening.
• Younger pipe, different risks. Only 3.9% of occupied homes in Cary predate 1970 (US 35.5%), so more of the network is newer plastic or ductile iron. Breaks tend to come from construction damage, pressure surges and weather rather than age.
• 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.

Cary weather and water-main stress, 2015–2025

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

Because this is gridded reanalysis data, individual hot and cold days can read a few degrees off what the airport recorded. The day counts and yearly patterns are the useful part.

Is Cary water safe? Boil notices and EPA record

EPA lists 1 health-based violation for Town of Cary since 2015. It also lists 1 monitoring or reporting entry that is about paperwork rather than water quality, such as a missed sample or a late report.

Most recent health-based entries:

• May 2023: Drinking water above the legal limit for coliform bacteria It is marked resolved.

When Cary loses pressure after a break or a failed test, Town of Cary Utilities asks affected customers to boil water for drinking and cooking. The notice ends only after samples come back clean, which usually takes one to two days after service returns, and the North Carolina DEQ Public Water Supply Section supervises the process.

Lead service lines and old plumbing in Cary

The most recent 90th-percentile lead result filed for Town of Cary is 0 ppb (2025). The federal action level is 15 ppb, so that result is well under it.

3.9% of occupied homes in Cary were built before 1970, and lead service lines and solder stayed legal until the federal ban in 1986. After any outage that disturbs the pipes, run the cold tap 30 seconds to 2 minutes before drinking, and ask Town of Cary Utilities about its lead service line inventory.

When will the water come back on in Cary?

Most repairs of an ordinary main break in Cary take half a day once the crew is on site. Bigger mains, deep bury and busy roads stretch that to a day or more.

Town of Cary Utilities 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 Cary

The average household in Cary has about 2.6 people, so FEMA's minimum of one gallon per person per day comes to roughly 8 gallons for three days and 36 gallons for two weeks.

• Your water heater tank holds 30 to 50 gallons of clean water. Turn off the power or gas to it first, then drain from the valve at the bottom.
• 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.

Water systems near Cary, side by side

Water outage pages for nearby cities

Raleigh, NC · Durham, NC · Fayetteville, NC · Greensboro, NC