Henderson, Nevada Water Outage Today

Who runs the water in Henderson: system profile

The system behind most taps in Henderson is City of Henderson, which EPA records list as serving roughly 336,534 people. Customers know it as City of Henderson Utility Services; the name on your bill is the one to call.

What feeds the taps in Henderson

Henderson does not collect its own raw water. City of Henderson buys surface water from Southern Nevada Water System and distributes it through its own mains. After treatment the water is held in 54 storage tanks and reservoirs and pushed uphill by 31 pump facilities; that storage is the buffer that keeps taps running for a few hours after a pump or main fails.

What this means in an outage. Problems can start outside the city: if Southern Nevada Water System has to shut a main or its plant, Henderson can run short even though nothing is wrong with the local pipes. Follow alerts from the supplier and from City of Henderson Utility Services.

What causes water outages and low pressure in Henderson

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

• Summer demand. Henderson has about 115 days a year at or above 95°F and 86 at or above 100°F, and the hottest day in the record came on July 7, 2024. 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.
• Flooding and heavy rain. NOAA logged 177 flood, flash flood and heavy rain reports in Clark County from 2015 through 2026. High water can wash out the ground under buried pipe, flood pump stations and push treatment plants past their limits, which is why boil notices so often follow a flood.
• Long dry spells. The longest stretch without measurable rain since 2015 lasted 116 days, ending January 7, 2018. Dry soil shrinks and shifts around buried pipe, and breaks often cluster when the rain returns and the ground swells again.
• Freezing weather. Henderson sees about 15 days a year with a low at or below 32°F, and very few days at or below 20°F. The coldest morning in the 2015 through 2025 record came on January 2, 2022. Frozen service lines and meters cause single-address outages, while ground frost and thaw cycles crack older mains and produce the street-wide breaks.
• Storm-driven power loss. Thunderstorm wind, hail and tornado reports in Clark County number 168 since 2015. Pump stations and treatment plants that depend on NV Energy run on the electric grid, so a storm that downs power lines can lower water pressure even when no pipe is damaged.
• Younger pipe, different risks. Only 3.1% of occupied homes in Henderson 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.

Henderson weather and water-main stress, 2015–2025

Main break season in Henderson runs from late fall into early spring, with the coldest stretch around November through January.

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.

Henderson boil water notices and EPA compliance record

EPA lists no health-based violations for City of Henderson since 2015.

Boil water notices in Henderson are precautions, not findings. When pressure drops, City of Henderson Utility Services 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 Nevada Division of Environmental Protection, Bureau of Safe Drinking Water.

Lead service lines and old plumbing in Henderson

The most recent 90th-percentile lead result filed for City of Henderson is 3.8 ppb (2025). The federal action level is 15 ppb, so that result is well under it.

The age of the housing matters more than the utility's test average: 3.1% of occupied homes in Henderson predate 1970 and 1986 was the year lead pipe and solder were banned. Flush the cold tap after an outage and ask City of Henderson Utility Services whether your service line is on its lead inventory.

How long a water outage lasts in Henderson

Most repairs of an ordinary main break in Henderson 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 336,534 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 City of Henderson Utility Services for a restoration estimate when you report the outage; for large breaks it is normally posted and updated as the repair progresses.

How much water to keep on hand in Henderson

With about 2.5 people in the typical Henderson home, FEMA's one-gallon-per-person-per-day rule means 8 gallons covers three days and 35 gallons covers two weeks.

• Heat: 115 days a year top 95°F here, so plan for more than the one-gallon minimum, and keep extra for pets.
• 20.8% of residents are 65 or older (US 17.2%); older adults dehydrate faster and may need help moving heavy water jugs.
• 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.

Henderson versus neighboring water utilities

Water outage pages for nearby cities

Las Vegas, NV · North Las Vegas, NV · San Bernardino, CA · Moreno Valley, CA