Waterbury, Connecticut Water Outage Today
Live Waterbury water outage reports, Waterbury Water Department’s emergency line and the system’s federal record.
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No water outage reports in Waterbury, Connecticut in the last 24 hours
Who supplies water in Waterbury?
Drinking water in Waterbury, Connecticut is supplied by Waterbury Water Department, which handles outages, main breaks and boil water notices for the city.
Public water systems in Connecticut are regulated by the Connecticut Department of Public Health Drinking Water Section.
To report no water or a main break, call Waterbury Water Department at 203-574-8251.
Who runs the water in Waterbury: system profile
Federal records name Waterbury Water Department as the public water system for Waterbury, with about 107,271 people on its mains.
| Item | Detail |
|---|---|
| Water system in EPA records | Waterbury Water Department (CT1510011) |
| Run by | Local government |
| People served | 107,271 through 26,915 service connections |
| Source of the water | Surface water (rivers, lakes or reservoirs) |
| Active facilities listed by EPA | 4 surface intakes, 1 treatment point, 14 storage tanks and reservoirs, 8 pump facilities |
| State regulator | Connecticut Department of Public Health Drinking Water Section |
| Health-based violations since 2015 | 0 |
| Highest lead result (90th percentile) | 34 ppb, action level 15 ppb |
Source: EPA SDWIS (Safe Drinking Water Information System).
What feeds the taps in Waterbury
Tap water in Waterbury starts as surface water. Waterbury Water Department takes it from the Wigwam Reservoir, the Morris Reservoir, and the Cairns Reservoir and runs it through treatment before it reaches the mains. Treatment points named in EPA's facility list include Waterbury Water Treatment Plant. After treatment the water is held in 14 storage tanks and reservoirs and pushed uphill by 8 pump facilities; that storage is the buffer that keeps taps running for a few hours after a pump or main fails.
The outage angle. Because the water is drawn from open surface sources, it has to be filtered and disinfected continuously. A plant problem therefore hits everyone at once, unlike a main break, which only dries up the blocks on either side of the damaged pipe.
Why the water goes out in Waterbury
Which failures hit Waterbury hardest follows from its weather, its housing stock and how it is supplied.
- Freezing weather. Waterbury sees about 124 days a year with a low at or below 32°F, and 38 days at or below 20°F. The coldest morning in the 2015 through 2025 record came on February 24, 2015. The longest stretch with highs that never rose above freezing ran 17 days, ending February 21, 2015. 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. 61.6% of occupied homes in Waterbury 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.
- Digging and utility work. Street projects, fiber installation and excavation near buried pipe regularly cut mains in Waterbury with no warning, usually on a day with perfectly ordinary weather.
- 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 Waterbury weather record
Main break season in Waterbury runs from late fall into early spring, with the coldest stretch around December through February.
| Measure | Value |
|---|---|
| Days a year at or below 32°F | 123.5 |
| Days a year at or below 20°F | 37.6 |
| Days a year with a high at or below 32°F | 26.5 |
| Days a year at or above 95°F | 1.4 |
| Days a year at or above 100°F | 0.1 |
| Days a year with an inch of rain or more | 9.9 |
| Average annual precipitation | 47.1 in |
| Wettest year | 2018 (61.6 in) |
| Driest year | 2016 (35.8 in) |
| Coldest day in the record | February 24, 2015 |
| Hottest day in the record | July 29, 2025 |
Source: NASA POWER daily reanalysis (MERRA-2) for the city center, 2015–2025.
Freezing days peak in January, averaging 28.3 a year. Source: NASA POWER reanalysis, 2015–2025.
The wettest year was 2018 with 61.6 inches; the driest was 2016 with 35.8. Source: NASA POWER reanalysis, 2015–2025.
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.
Boil water advisories and the federal violation record for Waterbury
EPA lists no health-based violations for Waterbury Water Department since 2015. It also lists 9 monitoring or reporting entries that are about paperwork rather than water quality, such as a missed sample or a late report.
Most recent entries, all monitoring or reporting:
- December 2025: A lead consumer notice requirement It is marked resolved.
- July 2024: A late or missing annual water quality report It is marked resolved.
| Type of violation | Health-based | Monitoring and other |
|---|---|---|
| Public notice and annual reports | 0 | 4 |
| Lead and copper | 0 | 3 |
| Coliform bacteria testing | 0 | 1 |
| Surface water treatment and turbidity | 0 | 1 |
Source: EPA SDWIS.
Monitoring and other Health-based
Violations are counted by the year the compliance period began. Source: EPA SDWIS.
When Waterbury loses pressure after a break or a failed test, Waterbury Water Department 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 Connecticut Department of Public Health Drinking Water Section supervises the process.
What the lead tests and housing age say about Waterbury
The most recent 90th-percentile lead result filed for Waterbury Water Department is 4 ppb (2025). The federal action level is 15 ppb, so that result is far from the limit.
Highest result on file: 34 ppb. Source: EPA SDWIS.
The age of the housing matters more than the utility's test average: 61.6% of occupied homes in Waterbury predate 1970 and 1986 was the year lead pipe and solder were banned. Flush the cold tap after an outage and ask Waterbury Water Department whether your service line is on its lead inventory.
Restoration times for water outages in Waterbury
Most repairs of an ordinary main break in Waterbury take half a day once the crew is on site. Bigger mains, deep bury and busy roads stretch that to a day or more.
| Situation | Typical time |
|---|---|
| Planned shutoff | The posted window, though crews often finish ahead of it |
| Ordinary main break | About 4 to 8 hours after the crew is on site |
| Large or deep main | 1 to 3 days |
| Low pressure after a pump or power failure | Hours to a day, once power or the pump is restored |
| Boil water notice after service returns | About 24 to 48 hours, until lab tests are clean |
| Frozen service line or meter | Until it thaws or a plumber repairs it |
Source: Utility practice, EPA and state boil water guidance.
Waterbury Water Department will post an estimated restoration time for a break that affects many customers; ask for the repair crew's estimate when you call.
Emergency water storage for Waterbury households
With about 2.5 people in the typical Waterbury home, FEMA's one-gallon-per-person-per-day rule means 8 gallons covers three days and 35 gallons covers two weeks.
- 18.5% of residents report a disability (US 13.3%), so check on neighbors who rely on running water for medical equipment.
- 52.8% 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.
How Waterbury compares with nearby water systems
| City | System | People served | Source | Health violations since 2015 | Highest lead (ppb) |
|---|---|---|---|---|---|
| Waterbury, CT | Waterbury Water Department | 107,271 | Surface | 0 | 34 |
| New Haven, CT | Regional Water Authority | 418,900 | Surface | 0 | 1 |
| Hartford, CT | Metropolitan District Commission | 390,887 | Surface | 0 | 8 |
| Bridgeport, CT | Aquarion-Eastern Fairfield County | 351,756 | Surface | 0 | 8 |
| Stamford, CT | Aquarion-Stamford | 119,214 | Surface | 0 | 2 |
Source: EPA SDWIS.
Water outage pages for nearby cities
New Haven, CT · Hartford, CT · Bridgeport, CT · Stamford, CT
Waterbury boil water notices and main breaks
Waterbury Water Department posts Waterbury boil water notices, main breaks and planned shutoffs on its own site and alerts. What a notice requires: water outage guide.
Waterbury frequently asked water questions
Who do I call about no water in Waterbury?
Waterbury Water Department at 203-574-8251, day or night. Use 911 only if a main break is flooding property or roads.
Where does Waterbury get its water?
EPA records for Waterbury Water Department say Waterbury relies on surface water. It draws from the Wigwam Reservoir, the Morris Reservoir, and the Cairns Reservoir.
Is Waterbury tap water safe to drink?
EPA lists no health-based violations for Waterbury Water Department since 2015, and its latest 90th-percentile lead result is 4 ppb against the 15 ppb action level. If the utility issues a boil notice, boil water until it announces the all-clear.
What time of year are Waterbury water main breaks most common?
Breaks in Waterbury pile up in the cold, with about 124 freezing days a year and the worst stretch from December to February. The days right after a deep freeze, when the soil thaws and shifts, are usually the busiest.
Why is my water pressure low in Waterbury?
Check whether neighbors have the same problem. If they do, it is probably a main break, a pump problem or evening demand, and Waterbury Water Department should hear about it. If not, the cause is likely inside your own plumbing.
How long does a boil water notice last in Waterbury?
Plan on one to two days after pressure is back. Waterbury Water Department samples the water, waits for clean lab results and then lifts the notice, with the Connecticut Department of Public Health Drinking Water Section overseeing the steps.
How much water should a Waterbury household store?
Store at least three days of water, and two weeks if you can. With about 2.5 people in a typical Waterbury home, that is roughly 8 and 35 gallons.
Should I worry about lead in Waterbury water?
It depends on the age of your home. About 61.6% of occupied homes in Waterbury were built before 1970, and lead service lines remained legal until 1986. Contact Waterbury Water Department about your address and flush the cold tap after any outage.
Where can I see water outages in Waterbury?
We do not run a pipe map. The report count at the top of this page shows what other people in Waterbury have reported in the last 24 hours. For the official picture, check Waterbury Water Department for its outage page, alerts and social accounts.
More outage pages for Waterbury and nearby
Other outage types in Waterbury
Water Service Outages in cities near Waterbury
- New Haven, CT 18 mi · South Central Connecticut Regional Water Authority
- Hartford, CT 24 mi · The Metropolitan District (MDC)
- Bridgeport, CT 27 mi · Aquarion Water Company
- Stamford, CT 43 mi · Aquarion Water Company
- Springfield, MA 44 mi · Springfield Water and Sewer Commission
- New Rochelle, NY 59 mi · Veolia Water New York
Report counts are user-submitted; other figures name their official source. How our data works
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