Lexington, Kentucky Water Outage Today

Lexington tap water system, by the numbers

Federal records name Kentucky-American Water Co as the public water system for Lexington, with about 669,042 people on its mains. Customers know it as Kentucky American Water; the name on your bill is the one to call.

What feeds the taps in Lexington

Tap water in Lexington starts as surface water. Kentucky-American Water Co takes it from Kentucky River Pool 9, the Jacobson Reservoir, and Lake Ellerslie and runs it through treatment before it reaches the mains. Treatment points named in EPA's facility list include Kentucky River Station WTP, Richmond Rd Station WTP, and Kentucky River Station Ii WTP.

The outage angle. Surface water needs a treatment plant running around the clock, so a plant shutdown, a raw-water pump failure or a long power cut at the plant can lower pressure across the whole service area, not just on one street. Boil water notices are more likely to be citywide after that kind of failure than after a single main break. EPA lists 1 emergency connection to neighboring systems, which can be opened to move water across a boundary during a failure.

Main breaks and shutoffs in Lexington: the usual causes

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

• Freezing weather. Lexington sees about 93 days a year with a low at or below 32°F, and 18 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 11 days, ending January 6, 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 33 flood, flash flood and heavy rain reports in Fayette County from 2015 through 2026, and 8 days a year bring an inch of rain or more. Flooding is hard on water systems in three ways: it erodes soil around pipe crossings, drowns pumps and electrical equipment, and can let contaminated runoff into the mains, which triggers precautionary boil notices.
• Storm-driven power loss. Thunderstorm wind, hail and tornado reports in Fayette County number 132 since 2015. Pump stations and treatment plants that depend on Kentucky Utilities run on the electric grid, so a storm that downs power lines can lower water pressure even when no pipe is damaged.
• Digging and utility work. Street projects, fiber installation and excavation near buried pipe regularly cut mains in Lexington with no warning, usually on a day with perfectly ordinary weather.
• One-address problems. A closed valve, a meter swap or a failed regulator can leave a single house dry. Compare notes with a neighbor first; if they have water too, start with your own plumbing.

Freeze, heat and rain: the Lexington weather record

Main break season in Lexington 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.

Lexington boil water notices and EPA compliance record

EPA lists 1 health-based violation for Kentucky-American Water Co since 2015.

Most recent health-based entries:

• July 2015: Drinking water above the legal limit for haloacetic acids It is marked resolved.

A boil water notice in Lexington is a separate thing from a violation. Kentucky American Water issues one when pressure falls low enough for contamination to enter the pipes, after a main break is repaired, or when a routine test comes back positive. The Kentucky Division of Water oversees the process, and the notice stays until clean samples come back, usually a day or two after pressure returns.

What the lead tests and housing age say about Lexington

The most recent 90th-percentile lead result filed for Kentucky-American Water Co is 0 ppb (2024). The federal action level is 15 ppb, so that result is comfortably below it.

30.7% of occupied homes in Lexington 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 Kentucky American Water about its lead service line inventory.

When will the water come back on in Lexington?

Most repairs of an ordinary main break in Lexington 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 669,042 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.

Ask Kentucky American Water for a restoration estimate when you report the outage; for large breaks it is normally posted and updated as the repair progresses.

Preparing for a long water outage in Lexington

Census figures put the typical Lexington household at about 2.3 people. At one gallon per person per day that is 7 gallons for three days or 32 gallons for a two-week supply.

• 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.

How Lexington compares with nearby water systems

Water outage pages for nearby cities

Louisville, KY · Covington, KY · Cincinnati, OH · Huntington, WV